Interweave Implementation Guide
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Interweave Implementation Guide - Local Development build (v0.1.0) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the STU3 profiles here.

Resource Profile: InterweaveFlag - Detailed Descriptions

Draft as of 2024-07-15

Definitions for the Interweave-Flag resource profile.

Guidance on how to interpret the contents of this table can be found here

0. Flag
2. Flag.id
Must Supporttrue
4. Flag.meta
6. Flag.meta.id
Control0..0
8. Flag.meta.versionId
Must Supporttrue
10. Flag.meta.lastUpdated
ShortMANDATORY except in Contained Resources. When the resource version last changed.
Must Supporttrue
12. Flag.meta.profile
ShortProfiles this resource claims to conform to. Should list (i) this profile (ii) base profile for this resource.
Must Supporttrue
14. Flag.meta.security
ShortDISCOURAGED - may not be honoured by Data Consumers
16. Flag.meta.tag
SlicingThis element introduces a set of slices on Flag.meta.tag. The slices areUnordered and Open, and can be differentiated using the following discriminators:
  • value @ system
  • 18. Flag.meta.tag:Source
    Slice NameSource
    ShortMANDATORY except in Contained Resources. The Data Provider Id (and display text) of the system supplying the data
    Control0..1
    Must Supporttrue
    20. Flag.meta.tag:Source.id
    Control0..0
    22. Flag.meta.tag:Source.system
    Control1..?
    Fixed Valuehttps://fhir.interweavedigital.nhs.uk/Source
    24. Flag.meta.tag:Source.version
    NoteThis is a business version Id, not a resource version Id (see discussion)
    Control0..0
    26. Flag.meta.tag:Source.code
    ShortThe Data Provider Id of the system supplying the data
    Control1..?
    Must Supporttrue
    28. Flag.meta.tag:Source.display
    ShortName of the system supplying the data
    Control1..?
    Must Supporttrue
    30. Flag.meta.tag:Provenance
    Slice NameProvenance
    ShortMANDATORY except in Contained Resources. The ODS Code (and display text) of the organisation responsible for the data
    Control0..1
    Must Supporttrue
    32. Flag.meta.tag:Provenance.id
    Control0..0
    34. Flag.meta.tag:Provenance.system
    Control1..?
    Fixed Valuehttps://fhir.interweavedigital.nhs.uk/Provenance
    36. Flag.meta.tag:Provenance.version
    NoteThis is a business version Id, not a resource version Id (see discussion)
    Control0..0
    38. Flag.meta.tag:Provenance.code
    ShortThe ODS Code of the organisation responsible for the data
    Control1..?
    Must Supporttrue
    40. Flag.meta.tag:Provenance.display
    ShortName of the organisation supplying the data
    Control1..?
    Must Supporttrue
    42. Flag.implicitRules
    ShortDISCOURAGED - may not be honoured by Data Consumers
    44. Flag.language
    ShortEnglish is assumed (not currently a multi-lingual implementation)
    46. Flag.text
    ShortDISCOURAGED - the preferred approach is to offer structured data fields which a Data Consumer can then render and present in a manner most suited to its users
    48. Flag.identifier
    NoteThis is a business identifier, not a resource identifier (see discussion)
    SlicingThis element introduces a set of slices on Flag.identifier. The slices areUnordered and Open, and can be differentiated using the following discriminators:
    • value @ system
    • 50. Flag.identifier.assigner
      TypeReference(InterweaveOrganization)
      52. Flag.identifier:localIdentifier
      Slice NamelocalIdentifier
      NoteThis is a business identifier, not a resource identifier (see discussion)
      Control0..1
      54. Flag.identifier:localIdentifier.system
      Control1..?
      Must Supporttrue
      Fixed Valuehttps://fhir.interweavedigital.nhs.uk/Id/local-flag-identifier
      56. Flag.identifier:localIdentifier.value
      ShortThe Local flag Identifier. Please prefix with ODS code plus period (XXX.) to ensure unique
      Control1..?
      Must Supporttrue
      58. Flag.identifier:localIdentifier.period
      Control0..0
      60. Flag.status
      ShortIndicates whether this flag is active or it is no longer active and needs to be displayed to a user.
      Must Supporttrue
      62. Flag.category
      Control1..1
      BindingThe codes SHALL be taken from InterweaveFlagCategory
      (required to https://fhir.interweavedigital.nhs.uk/R4/ValueSet/Interweave-FlagCategory)
      Must Supporttrue
      64. Flag.category.coding
      66. Flag.category.coding.system
      Control1..?
      68. Flag.category.coding.code
      Control1..?
      70. Flag.category.coding.display
      Control1..?
      72. Flag.code
      BindingThe codes SHOULD be taken from InterweaveFlagType
      (preferred to https://fhir.interweavedigital.nhs.uk/R4/ValueSet/Interweave-FlagType)
      Must Supporttrue
      74. Flag.code.coding
      76. Flag.code.coding.system
      Control1..?
      78. Flag.code.coding.code
      Control1..?
      80. Flag.code.coding.display
      Control1..?
      82. Flag.subject
      ShortThe patient to which the flag is assigned.
      TypeReference(InterweavePatient)
      Must Supporttrue
      84. Flag.subject.reference
      ShortReference to a resource (could be Contained)
      Control1..?
      86. Flag.subject.identifier
      ShortIf relevant could include an id
      NoteThis is a business identifier, not a resource identifier (see discussion)
      88. Flag.subject.display
      ShortDescription of the referenced resource
      Control1..?
      90. Flag.period
      92. Flag.period.start
      ShortThe date that the flag was placed against the patient
      Must Supporttrue
      94. Flag.encounter
      Control0..0
      96. Flag.author
      ShortThe practitioner, organizational team or organization which placed the flag against the patient.
      TypeReference(InterweavePractitioner, InterweaveOrganization, InterweaveOrganizationalTeam)

      Guidance on how to interpret the contents of this table can be found here

      0. Flag
      Definition

      Prospective warnings of potential issues when providing care to the patient.

      ShortKey information to flag to healthcare providers
      Control0..*
      Is Modifierfalse
      Summaryfalse
      Alternate NamesBarriers to Care, Alert, Warning
      Invariantsdom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources (contained.contained.empty())
      dom-3: If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource (contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty())
      dom-4: If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated (contained.meta.versionId.empty() and contained.meta.lastUpdated.empty())
      dom-5: If a resource is contained in another resource, it SHALL NOT have a security label (contained.meta.security.empty())
      dom-6: A resource should have narrative for robust management (text.`div`.exists())
      2. Flag.id
      Definition

      The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.

      ShortLogical id of this artifact
      Comments

      The only time that a resource does not have an id is when it is being submitted to the server using a create operation.

      Control0..1
      Typeidstring
      Is Modifierfalse
      Must Supporttrue
      Summarytrue
      4. Flag.meta
      Definition

      The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource.

      ShortMetadata about the resource
      Control0..1
      TypeMeta
      Is Modifierfalse
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      6. Flag.meta.id
      Definition

      Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

      ShortUnique id for inter-element referencing
      Control0..01
      Typestring
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      8. Flag.meta.versionId
      Definition

      The version specific identifier, as it appears in the version portion of the URL. This value changes when the resource is created, updated, or deleted.

      ShortVersion specific identifier
      Comments

      The server assigns this value, and ignores what the client specifies, except in the case that the server is imposing version integrity on updates/deletes.

      Control0..1
      Typeid
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Must Supporttrue
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      10. Flag.meta.lastUpdated
      Definition

      When the resource last changed - e.g. when the version changed.

      ShortMANDATORY except in Contained Resources. When the resource version last changed.When the resource version last changed
      Comments

      This value is always populated except when the resource is first being created. The server / resource manager sets this value; what a client provides is irrelevant. This is equivalent to the HTTP Last-Modified and SHOULD have the same value on a read interaction.

      Control0..1
      Typeinstant
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Must Supporttrue
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      12. Flag.meta.profile
      Definition

      A list of profiles (references to StructureDefinition resources) that this resource claims to conform to. The URL is a reference to StructureDefinition.url.

      ShortProfiles this resource claims to conform to. Should list (i) this profile (ii) base profile for this resource.
      Comments

      It is up to the server and/or other infrastructure of policy to determine whether/how these claims are verified and/or updated over time. The list of profile URLs is a set.

      Control0..*
      Typecanonical(StructureDefinition)
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Must Supporttrue
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      14. Flag.meta.security
      Definition

      Security labels applied to this resource. These tags connect specific resources to the overall security policy and infrastructure.

      ShortDISCOURAGED - may not be honoured by Data ConsumersSecurity Labels applied to this resource
      Comments

      The security labels can be updated without changing the stated version of the resource. The list of security labels is a set. Uniqueness is based the system/code, and version and display are ignored.

      Control0..*
      BindingUnless not suitable, these codes SHALL be taken from All Security Labelshttp://hl7.org/fhir/ValueSet/security-labels
      (extensible to http://hl7.org/fhir/ValueSet/security-labels)

      Security Labels from the Healthcare Privacy and Security Classification System.

      TypeCoding
      Is Modifierfalse
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      16. Flag.meta.tag
      Definition

      Tags applied to this resource. Tags are intended to be used to identify and relate resources to process and workflow, and applications are not required to consider the tags when interpreting the meaning of a resource.

      ShortTags applied to this resource
      Comments

      The tags can be updated without changing the stated version of the resource. The list of tags is a set. Uniqueness is based the system/code, and version and display are ignored.

      Control0..*
      BindingFor example codes, see CommonTagshttp://hl7.org/fhir/ValueSet/common-tags
      (example to http://hl7.org/fhir/ValueSet/common-tags)

      Codes that represent various types of tags, commonly workflow-related; e.g. "Needs review by Dr. Jones".

      TypeCoding
      Is Modifierfalse
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      SlicingThis element introduces a set of slices on Flag.meta.tag. The slices areUnordered and Open, and can be differentiated using the following discriminators:
      • value @ system
      • 18. Flag.meta.tag:Source
        Slice NameSource
        Definition

        Tags applied to this resource. Tags are intended to be used to identify and relate resources to process and workflow, and applications are not required to consider the tags when interpreting the meaning of a resource.

        ShortMANDATORY except in Contained Resources. The Data Provider Id (and display text) of the system supplying the dataTags applied to this resource
        Comments

        The tags can be updated without changing the stated version of the resource. The list of tags is a set. Uniqueness is based the system/code, and version and display are ignored.

        Control0..1*
        BindingFor example codes, see CommonTagshttp://hl7.org/fhir/ValueSet/common-tags
        (example to http://hl7.org/fhir/ValueSet/common-tags)

        Codes that represent various types of tags, commonly workflow-related; e.g. "Needs review by Dr. Jones".

        TypeCoding
        Is Modifierfalse
        Must Supporttrue
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        20. Flag.meta.tag:Source.id
        Definition

        Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

        ShortUnique id for inter-element referencing
        Control0..01
        Typestring
        Is Modifierfalse
        XML FormatIn the XML format, this property is represented as an attribute.
        Summaryfalse
        22. Flag.meta.tag:Source.system
        Definition

        The identification of the code system that defines the meaning of the symbol in the code.

        ShortIdentity of the terminology system
        Comments

        The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.

        Control10..1
        Typeuri
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summarytrue
        Requirements

        Need to be unambiguous about the source of the definition of the symbol.

        Fixed Valuehttps://fhir.interweavedigital.nhs.uk/Source
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        24. Flag.meta.tag:Source.version
        Definition

        The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.

        ShortVersion of the system - if relevant
        Comments

        Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.

        NoteThis is a business version Id, not a resource version Id (see discussion)
        Control0..01
        Typestring
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        26. Flag.meta.tag:Source.code
        Definition

        A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

        ShortThe Data Provider Id of the system supplying the dataSymbol in syntax defined by the system
        Control10..1
        Typecode
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supporttrue
        Summarytrue
        Requirements

        Need to refer to a particular code in the system.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        28. Flag.meta.tag:Source.display
        Definition

        A representation of the meaning of the code in the system, following the rules of the system.

        ShortName of the system supplying the dataRepresentation defined by the system
        Control10..1
        Typestring
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supporttrue
        Summarytrue
        Requirements

        Need to be able to carry a human-readable meaning of the code for readers that do not know the system.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        30. Flag.meta.tag:Provenance
        Slice NameProvenance
        Definition

        Tags applied to this resource. Tags are intended to be used to identify and relate resources to process and workflow, and applications are not required to consider the tags when interpreting the meaning of a resource.

        ShortMANDATORY except in Contained Resources. The ODS Code (and display text) of the organisation responsible for the dataTags applied to this resource
        Comments

        The tags can be updated without changing the stated version of the resource. The list of tags is a set. Uniqueness is based the system/code, and version and display are ignored.

        Control0..1*
        BindingFor example codes, see CommonTagshttp://hl7.org/fhir/ValueSet/common-tags
        (example to http://hl7.org/fhir/ValueSet/common-tags)

        Codes that represent various types of tags, commonly workflow-related; e.g. "Needs review by Dr. Jones".

        TypeCoding
        Is Modifierfalse
        Must Supporttrue
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        32. Flag.meta.tag:Provenance.id
        Definition

        Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

        ShortUnique id for inter-element referencing
        Control0..01
        Typestring
        Is Modifierfalse
        XML FormatIn the XML format, this property is represented as an attribute.
        Summaryfalse
        34. Flag.meta.tag:Provenance.system
        Definition

        The identification of the code system that defines the meaning of the symbol in the code.

        ShortIdentity of the terminology system
        Comments

        The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.

        Control10..1
        Typeuri
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summarytrue
        Requirements

        Need to be unambiguous about the source of the definition of the symbol.

        Fixed Valuehttps://fhir.interweavedigital.nhs.uk/Provenance
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        36. Flag.meta.tag:Provenance.version
        Definition

        The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.

        ShortVersion of the system - if relevant
        Comments

        Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.

        NoteThis is a business version Id, not a resource version Id (see discussion)
        Control0..01
        Typestring
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        38. Flag.meta.tag:Provenance.code
        Definition

        A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

        ShortThe ODS Code of the organisation responsible for the dataSymbol in syntax defined by the system
        Control10..1
        Typecode
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supporttrue
        Summarytrue
        Requirements

        Need to refer to a particular code in the system.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        40. Flag.meta.tag:Provenance.display
        Definition

        A representation of the meaning of the code in the system, following the rules of the system.

        ShortName of the organisation supplying the dataRepresentation defined by the system
        Control10..1
        Typestring
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supporttrue
        Summarytrue
        Requirements

        Need to be able to carry a human-readable meaning of the code for readers that do not know the system.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        42. Flag.implicitRules
        Definition

        A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.

        ShortDISCOURAGED - may not be honoured by Data ConsumersA set of rules under which this content was created
        Comments

        Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc.

        Control0..1
        Typeuri
        Is Modifiertrue because This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        44. Flag.language
        Definition

        The base language in which the resource is written.

        ShortEnglish is assumed (not currently a multi-lingual implementation)Language of the resource content
        Comments

        Language is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource. Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute).

        Control0..1
        BindingThe codes SHOULD be taken from CommonLanguageshttp://hl7.org/fhir/ValueSet/languages
        (preferred to http://hl7.org/fhir/ValueSet/languages)

        A human language.

        Additional BindingsPurpose
        AllLanguagesMax Binding
        Typecode
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        46. Flag.text
        Definition

        A human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety.

        ShortDISCOURAGED - the preferred approach is to offer structured data fields which a Data Consumer can then render and present in a manner most suited to its usersText summary of the resource, for human interpretation
        Comments

        Contained resources do not have narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied). This may be necessary for data from legacy systems where information is captured as a "text blob" or where text is additionally entered raw or narrated and encoded information is added later.

        Control0..1
        TypeNarrative
        Is Modifierfalse
        Summaryfalse
        Alternate Namesnarrative, html, xhtml, display
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        48. Flag.modifierExtension
        Definition

        May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

        Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

        ShortExtensions that cannot be ignored
        Comments

        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

        Control0..*
        TypeExtension
        Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them
        Summaryfalse
        Requirements

        Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

        Alternate Namesextensions, user content
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        50. Flag.identifier
        Definition

        Business identifiers assigned to this flag by the performer or other systems which remain constant as the resource is updated and propagates from server to server.

        ShortBusiness identifier
        Comments

        This is a business identifier, not a resource identifier (see discussion). It is best practice for the identifier to only appear on a single resource instance, however business practices may occasionally dictate that multiple resource instances with the same identifier can exist - possibly even with different resource types. For example, multiple Patient and a Person resource instance might share the same social insurance number.

        NoteThis is a business identifier, not a resource identifier (see discussion)
        Control0..*
        TypeIdentifier
        Is Modifierfalse
        Summarytrue
        Requirements

        Allows identification of the flag as it is known by various participating systems and in a way that remains consistent across servers.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        SlicingThis element introduces a set of slices on Flag.identifier. The slices areUnordered and Open, and can be differentiated using the following discriminators:
        • value @ system
        • 52. Flag.identifier.use
          Definition

          The purpose of this identifier.

          Shortusual | official | temp | secondary | old (If known)
          Comments

          Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.

          Control0..1
          BindingThe codes SHALL be taken from IdentifierUsehttp://hl7.org/fhir/ValueSet/identifier-use|4.0.1
          (required to http://hl7.org/fhir/ValueSet/identifier-use|4.0.1)

          Identifies the purpose for this identifier, if known .

          Typecode
          Is Modifiertrue because This is labeled as "Is Modifier" because applications should not mistake a temporary id for a permanent one.
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summarytrue
          Requirements

          Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          54. Flag.identifier.assigner
          Definition

          Organization that issued/manages the identifier.

          ShortOrganization that issued id (may be just text)
          Comments

          The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization.

          Control0..1
          TypeReference(InterweaveOrganization, Organization)
          Is Modifierfalse
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          56. Flag.identifier:localIdentifier
          Slice NamelocalIdentifier
          Definition

          Business identifiers assigned to this flag by the performer or other systems which remain constant as the resource is updated and propagates from server to server.

          ShortBusiness identifier
          Comments

          This is a business identifier, not a resource identifier (see discussion). It is best practice for the identifier to only appear on a single resource instance, however business practices may occasionally dictate that multiple resource instances with the same identifier can exist - possibly even with different resource types. For example, multiple Patient and a Person resource instance might share the same social insurance number.

          NoteThis is a business identifier, not a resource identifier (see discussion)
          Control0..1*
          TypeIdentifier
          Is Modifierfalse
          Summarytrue
          Requirements

          Allows identification of the flag as it is known by various participating systems and in a way that remains consistent across servers.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          58. Flag.identifier:localIdentifier.use
          Definition

          The purpose of this identifier.

          Shortusual | official | temp | secondary | old (If known)
          Comments

          Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.

          Control0..1
          BindingThe codes SHALL be taken from IdentifierUsehttp://hl7.org/fhir/ValueSet/identifier-use|4.0.1
          (required to http://hl7.org/fhir/ValueSet/identifier-use|4.0.1)

          Identifies the purpose for this identifier, if known .

          Typecode
          Is Modifiertrue because This is labeled as "Is Modifier" because applications should not mistake a temporary id for a permanent one.
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summarytrue
          Requirements

          Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          60. Flag.identifier:localIdentifier.system
          Definition

          Establishes the namespace for the value - that is, a URL that describes a set values that are unique.

          ShortThe namespace for the identifier value
          Comments

          Identifier.system is always case sensitive.

          Control10..1
          Typeuri
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Must Supporttrue
          Summarytrue
          Requirements

          There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers.

          Fixed Valuehttps://fhir.interweavedigital.nhs.uk/Id/local-flag-identifier
          Example<br/><b>General</b>:http://www.acme.com/identifiers/patient
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          62. Flag.identifier:localIdentifier.value
          Definition

          The portion of the identifier typically relevant to the user and which is unique within the context of the system.

          ShortThe Local flag Identifier. Please prefix with ODS code plus period (XXX.) to ensure uniqueThe value that is unique
          Comments

          If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe.

          Control10..1
          Typestring
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Must Supporttrue
          Summarytrue
          Example<br/><b>General</b>:123456
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          64. Flag.identifier:localIdentifier.period
          Definition

          Time period during which identifier is/was valid for use.

          ShortTime period when id is/was valid for use
          Control0..01
          TypePeriod
          Is Modifierfalse
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          66. Flag.status
          Definition

          Supports basic workflow.

          ShortIndicates whether this flag is active or it is no longer active and needs to be displayed to a user.active | inactive | entered-in-error
          Comments

          This element is labeled as a modifier because the status contains codes that mark the resource as not currently valid.

          Control1..1
          BindingThe codes SHALL be taken from FlagStatushttp://hl7.org/fhir/ValueSet/flag-status|4.0.1
          (required to http://hl7.org/fhir/ValueSet/flag-status|4.0.1)

          Indicates whether this flag is active and needs to be displayed to a user, or whether it is no longer needed or was entered in error.

          Typecode
          Is Modifiertrue because This element is labelled as a modifier because it is a status element that contains status entered-in-error which means that the resource should not be treated as valid
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Must Supporttrue
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          68. Flag.category
          Definition

          Allows a flag to be divided into different categories like clinical, administrative etc. Intended to be used as a means of filtering which flags are displayed to particular user or in a given context.

          ShortClinical, administrative, etc.
          Comments

          The value set will often need to be adjusted based on local business rules and usage context.

          Control10..1*
          BindingThe codes SHALL be taken from For example codes, see InterweaveFlagCategoryhttp://hl7.org/fhir/ValueSet/flag-category
          (required to https://fhir.interweavedigital.nhs.uk/R4/ValueSet/Interweave-FlagCategory)
          TypeCodeableConcept
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          70. Flag.code
          Definition

          The coded value or textual component of the flag to display to the user.

          ShortCoded or textual message to display to user
          Comments

          If non-coded, use CodeableConcept.text. This element should always be included in the narrative.

          Control1..1
          BindingThe codes SHOULD be taken from For example codes, see InterweaveFlagTypehttp://hl7.org/fhir/ValueSet/flag-code
          (preferred to https://fhir.interweavedigital.nhs.uk/R4/ValueSet/Interweave-FlagType)
          TypeCodeableConcept
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          72. Flag.subject
          Definition

          The patient, location, group, organization, or practitioner etc. this is about record this flag is associated with.

          ShortThe patient to which the flag is assigned.Who/What is flag about?
          Control1..1
          TypeReference(InterweavePatient, Patient, Location, Group, Organization, Practitioner, PlanDefinition, Medication, Procedure)
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          74. Flag.subject.reference
          Definition

          A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.

          ShortReference to a resource (could be Contained)Literal reference, Relative, internal or absolute URL
          Comments

          Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

          Control10..1
          This element is affected by the following invariants: ref-1
          Typestring
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          76. Flag.subject.identifier
          Definition

          An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

          ShortIf relevant could include an idLogical reference, when literal reference is not known
          Comments

          When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy.

          When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference

          Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.

          Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any).

          NoteThis is a business identifier, not a resource identifier (see discussion)
          Control0..1
          TypeIdentifier
          Is Modifierfalse
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          78. Flag.subject.display
          Definition

          Plain text narrative that identifies the resource in addition to the resource reference.

          ShortDescription of the referenced resourceText alternative for the resource
          Comments

          This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it.

          Control10..1
          Typestring
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          80. Flag.period
          Definition

          The period of time from the activation of the flag to inactivation of the flag. If the flag is active, the end of the period should be unspecified.

          ShortTime period when flag is active
          Control0..1
          TypePeriod
          Is Modifierfalse
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          82. Flag.period.start
          Definition

          The start of the period. The boundary is inclusive.

          ShortThe date that the flag was placed against the patientStarting time with inclusive boundary
          Comments

          If the low element is missing, the meaning is that the low boundary is not known.

          Control0..1
          This element is affected by the following invariants: per-1
          TypedateTime
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Must Supporttrue
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          84. Flag.encounter
          Definition

          This alert is only relevant during the encounter.

          ShortAlert relevant during encounter
          Comments

          If both Flag.encounter and Flag.period are valued, then Flag.period.start shall not be before Encounter.period.start and Flag.period.end shall not be after Encounter.period.end.

          Control0..01
          TypeReference(Encounter)
          Is Modifierfalse
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          86. Flag.author
          Definition

          The person, organization or device that created the flag.

          ShortThe practitioner, organizational team or organization which placed the flag against the patient.Flag creator
          Control0..1
          TypeReference(InterweavePractitioner, InterweaveOrganization, InterweaveOrganizationalTeam, Device, Organization, Patient, Practitioner, PractitionerRole)
          Is Modifierfalse
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))

          Guidance on how to interpret the contents of this table can be found here

          0. Flag
          Definition

          Prospective warnings of potential issues when providing care to the patient.

          ShortKey information to flag to healthcare providers
          Control0..*
          Is Modifierfalse
          Summaryfalse
          Alternate NamesBarriers to Care, Alert, Warning
          Invariantsdom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources (contained.contained.empty())
          dom-3: If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource (contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty())
          dom-4: If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated (contained.meta.versionId.empty() and contained.meta.lastUpdated.empty())
          dom-5: If a resource is contained in another resource, it SHALL NOT have a security label (contained.meta.security.empty())
          dom-6: A resource should have narrative for robust management (text.`div`.exists())
          2. Flag.id
          Definition

          The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.

          ShortLogical id of this artifact
          Comments

          The only time that a resource does not have an id is when it is being submitted to the server using a create operation.

          Control0..1
          Typeid
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          4. Flag.meta
          Definition

          The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource.

          ShortMetadata about the resource
          Control0..1
          TypeMeta
          Is Modifierfalse
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          6. Flag.meta.id
          Definition

          Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

          ShortUnique id for inter-element referencing
          Control0..0
          Typestring
          Is Modifierfalse
          XML FormatIn the XML format, this property is represented as an attribute.
          Summaryfalse
          8. Flag.meta.extension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

          ShortAdditional content defined by implementations
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          TypeExtension
          Is Modifierfalse
          Summaryfalse
          Alternate Namesextensions, user content
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          SlicingThis element introduces a set of slices on Flag.meta.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
          • value @ url
          • 10. Flag.meta.versionId
            Definition

            The version specific identifier, as it appears in the version portion of the URL. This value changes when the resource is created, updated, or deleted.

            ShortVersion specific identifier
            Comments

            The server assigns this value, and ignores what the client specifies, except in the case that the server is imposing version integrity on updates/deletes.

            Control0..1
            Typeid
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Must Supporttrue
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            12. Flag.meta.lastUpdated
            Definition

            When the resource last changed - e.g. when the version changed.

            ShortMANDATORY except in Contained Resources. When the resource version last changed.
            Comments

            This value is always populated except when the resource is first being created. The server / resource manager sets this value; what a client provides is irrelevant. This is equivalent to the HTTP Last-Modified and SHOULD have the same value on a read interaction.

            Control0..1
            Typeinstant
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Must Supporttrue
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            14. Flag.meta.source
            Definition

            A uri that identifies the source system of the resource. This provides a minimal amount of Provenance information that can be used to track or differentiate the source of information in the resource. The source may identify another FHIR server, document, message, database, etc.

            ShortIdentifies where the resource comes from
            Comments

            In the provenance resource, this corresponds to Provenance.entity.what[x]. The exact use of the source (and the implied Provenance.entity.role) is left to implementer discretion. Only one nominated source is allowed; for additional provenance details, a full Provenance resource should be used.

            This element can be used to indicate where the current master source of a resource that has a canonical URL if the resource is no longer hosted at the canonical URL.

            Control0..1
            Typeuri
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            16. Flag.meta.profile
            Definition

            A list of profiles (references to StructureDefinition resources) that this resource claims to conform to. The URL is a reference to StructureDefinition.url.

            ShortProfiles this resource claims to conform to. Should list (i) this profile (ii) base profile for this resource.
            Comments

            It is up to the server and/or other infrastructure of policy to determine whether/how these claims are verified and/or updated over time. The list of profile URLs is a set.

            Control0..*
            Typecanonical(StructureDefinition)
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Must Supporttrue
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            18. Flag.meta.security
            Definition

            Security labels applied to this resource. These tags connect specific resources to the overall security policy and infrastructure.

            ShortDISCOURAGED - may not be honoured by Data Consumers
            Comments

            The security labels can be updated without changing the stated version of the resource. The list of security labels is a set. Uniqueness is based the system/code, and version and display are ignored.

            Control0..*
            BindingUnless not suitable, these codes SHALL be taken from All Security Labels
            (extensible to http://hl7.org/fhir/ValueSet/security-labels)

            Security Labels from the Healthcare Privacy and Security Classification System.

            TypeCoding
            Is Modifierfalse
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            20. Flag.meta.tag
            Definition

            Tags applied to this resource. Tags are intended to be used to identify and relate resources to process and workflow, and applications are not required to consider the tags when interpreting the meaning of a resource.

            ShortTags applied to this resource
            Comments

            The tags can be updated without changing the stated version of the resource. The list of tags is a set. Uniqueness is based the system/code, and version and display are ignored.

            Control0..*
            BindingFor example codes, see CommonTags
            (example to http://hl7.org/fhir/ValueSet/common-tags)

            Codes that represent various types of tags, commonly workflow-related; e.g. "Needs review by Dr. Jones".

            TypeCoding
            Is Modifierfalse
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            SlicingThis element introduces a set of slices on Flag.meta.tag. The slices areUnordered and Open, and can be differentiated using the following discriminators:
            • value @ system
            • 22. Flag.meta.tag:Source
              Slice NameSource
              Definition

              Tags applied to this resource. Tags are intended to be used to identify and relate resources to process and workflow, and applications are not required to consider the tags when interpreting the meaning of a resource.

              ShortMANDATORY except in Contained Resources. The Data Provider Id (and display text) of the system supplying the data
              Comments

              The tags can be updated without changing the stated version of the resource. The list of tags is a set. Uniqueness is based the system/code, and version and display are ignored.

              Control0..1
              BindingFor example codes, see CommonTags
              (example to http://hl7.org/fhir/ValueSet/common-tags)

              Codes that represent various types of tags, commonly workflow-related; e.g. "Needs review by Dr. Jones".

              TypeCoding
              Is Modifierfalse
              Must Supporttrue
              Summarytrue
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              24. Flag.meta.tag:Source.id
              Definition

              Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

              ShortUnique id for inter-element referencing
              Control0..0
              Typestring
              Is Modifierfalse
              XML FormatIn the XML format, this property is represented as an attribute.
              Summaryfalse
              26. Flag.meta.tag:Source.extension
              Definition

              May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

              ShortAdditional content defined by implementations
              Comments

              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

              Control0..*
              TypeExtension
              Is Modifierfalse
              Summaryfalse
              Alternate Namesextensions, user content
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
              SlicingThis element introduces a set of slices on Flag.meta.tag.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
              • value @ url
              • 28. Flag.meta.tag:Source.system
                Definition

                The identification of the code system that defines the meaning of the symbol in the code.

                ShortIdentity of the terminology system
                Comments

                The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.

                Control1..1
                Typeuri
                Is Modifierfalse
                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                Summarytrue
                Requirements

                Need to be unambiguous about the source of the definition of the symbol.

                Fixed Valuehttps://fhir.interweavedigital.nhs.uk/Source
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                30. Flag.meta.tag:Source.version
                Definition

                The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.

                ShortVersion of the system - if relevant
                Comments

                Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.

                NoteThis is a business version Id, not a resource version Id (see discussion)
                Control0..0
                Typestring
                Is Modifierfalse
                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                Summarytrue
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                32. Flag.meta.tag:Source.code
                Definition

                A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

                ShortThe Data Provider Id of the system supplying the data
                Control1..1
                Typecode
                Is Modifierfalse
                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                Must Supporttrue
                Summarytrue
                Requirements

                Need to refer to a particular code in the system.

                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                34. Flag.meta.tag:Source.display
                Definition

                A representation of the meaning of the code in the system, following the rules of the system.

                ShortName of the system supplying the data
                Control1..1
                Typestring
                Is Modifierfalse
                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                Must Supporttrue
                Summarytrue
                Requirements

                Need to be able to carry a human-readable meaning of the code for readers that do not know the system.

                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                36. Flag.meta.tag:Source.userSelected
                Definition

                Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays).

                ShortIf this coding was chosen directly by the user
                Comments

                Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.

                Control0..1
                Typeboolean
                Is Modifierfalse
                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                Summarytrue
                Requirements

                This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing.

                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                38. Flag.meta.tag:Provenance
                Slice NameProvenance
                Definition

                Tags applied to this resource. Tags are intended to be used to identify and relate resources to process and workflow, and applications are not required to consider the tags when interpreting the meaning of a resource.

                ShortMANDATORY except in Contained Resources. The ODS Code (and display text) of the organisation responsible for the data
                Comments

                The tags can be updated without changing the stated version of the resource. The list of tags is a set. Uniqueness is based the system/code, and version and display are ignored.

                Control0..1
                BindingFor example codes, see CommonTags
                (example to http://hl7.org/fhir/ValueSet/common-tags)

                Codes that represent various types of tags, commonly workflow-related; e.g. "Needs review by Dr. Jones".

                TypeCoding
                Is Modifierfalse
                Must Supporttrue
                Summarytrue
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                40. Flag.meta.tag:Provenance.id
                Definition

                Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                ShortUnique id for inter-element referencing
                Control0..0
                Typestring
                Is Modifierfalse
                XML FormatIn the XML format, this property is represented as an attribute.
                Summaryfalse
                42. Flag.meta.tag:Provenance.extension
                Definition

                May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                ShortAdditional content defined by implementations
                Comments

                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                Control0..*
                TypeExtension
                Is Modifierfalse
                Summaryfalse
                Alternate Namesextensions, user content
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                SlicingThis element introduces a set of slices on Flag.meta.tag.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                • value @ url
                • 44. Flag.meta.tag:Provenance.system
                  Definition

                  The identification of the code system that defines the meaning of the symbol in the code.

                  ShortIdentity of the terminology system
                  Comments

                  The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.

                  Control1..1
                  Typeuri
                  Is Modifierfalse
                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                  Summarytrue
                  Requirements

                  Need to be unambiguous about the source of the definition of the symbol.

                  Fixed Valuehttps://fhir.interweavedigital.nhs.uk/Provenance
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  46. Flag.meta.tag:Provenance.version
                  Definition

                  The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.

                  ShortVersion of the system - if relevant
                  Comments

                  Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.

                  NoteThis is a business version Id, not a resource version Id (see discussion)
                  Control0..0
                  Typestring
                  Is Modifierfalse
                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                  Summarytrue
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  48. Flag.meta.tag:Provenance.code
                  Definition

                  A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

                  ShortThe ODS Code of the organisation responsible for the data
                  Control1..1
                  Typecode
                  Is Modifierfalse
                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                  Must Supporttrue
                  Summarytrue
                  Requirements

                  Need to refer to a particular code in the system.

                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  50. Flag.meta.tag:Provenance.display
                  Definition

                  A representation of the meaning of the code in the system, following the rules of the system.

                  ShortName of the organisation supplying the data
                  Control1..1
                  Typestring
                  Is Modifierfalse
                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                  Must Supporttrue
                  Summarytrue
                  Requirements

                  Need to be able to carry a human-readable meaning of the code for readers that do not know the system.

                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  52. Flag.meta.tag:Provenance.userSelected
                  Definition

                  Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays).

                  ShortIf this coding was chosen directly by the user
                  Comments

                  Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.

                  Control0..1
                  Typeboolean
                  Is Modifierfalse
                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                  Summarytrue
                  Requirements

                  This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing.

                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  54. Flag.implicitRules
                  Definition

                  A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.

                  ShortDISCOURAGED - may not be honoured by Data Consumers
                  Comments

                  Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc.

                  Control0..1
                  Typeuri
                  Is Modifiertrue because This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation
                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                  Summarytrue
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  56. Flag.language
                  Definition

                  The base language in which the resource is written.

                  ShortEnglish is assumed (not currently a multi-lingual implementation)
                  Comments

                  Language is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource. Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute).

                  Control0..1
                  BindingThe codes SHOULD be taken from CommonLanguages
                  (preferred to http://hl7.org/fhir/ValueSet/languages)

                  A human language.

                  Additional BindingsPurpose
                  AllLanguagesMax Binding
                  Typecode
                  Is Modifierfalse
                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                  Summaryfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  58. Flag.text
                  Definition

                  A human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety.

                  ShortDISCOURAGED - the preferred approach is to offer structured data fields which a Data Consumer can then render and present in a manner most suited to its users
                  Comments

                  Contained resources do not have narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied). This may be necessary for data from legacy systems where information is captured as a "text blob" or where text is additionally entered raw or narrated and encoded information is added later.

                  Control0..1
                  TypeNarrative
                  Is Modifierfalse
                  Summaryfalse
                  Alternate Namesnarrative, html, xhtml, display
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  60. Flag.contained
                  Definition

                  These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope.

                  ShortContained, inline Resources
                  Comments

                  This should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again. Contained resources may have profiles and tags In their meta elements, but SHALL NOT have security labels.

                  Control0..*
                  TypeResource
                  Is Modifierfalse
                  Summaryfalse
                  Alternate Namesinline resources, anonymous resources, contained resources
                  62. Flag.extension
                  Definition

                  May be used to represent additional information that is not part of the basic definition of the resource. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                  ShortAdditional content defined by implementations
                  Comments

                  There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                  Control0..*
                  TypeExtension
                  Is Modifierfalse
                  Summaryfalse
                  Alternate Namesextensions, user content
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                  64. Flag.modifierExtension
                  Definition

                  May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                  Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                  ShortExtensions that cannot be ignored
                  Comments

                  There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                  Control0..*
                  TypeExtension
                  Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them
                  Summaryfalse
                  Requirements

                  Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                  Alternate Namesextensions, user content
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                  66. Flag.identifier
                  Definition

                  Business identifiers assigned to this flag by the performer or other systems which remain constant as the resource is updated and propagates from server to server.

                  ShortBusiness identifier
                  Comments

                  This is a business identifier, not a resource identifier (see discussion). It is best practice for the identifier to only appear on a single resource instance, however business practices may occasionally dictate that multiple resource instances with the same identifier can exist - possibly even with different resource types. For example, multiple Patient and a Person resource instance might share the same social insurance number.

                  NoteThis is a business identifier, not a resource identifier (see discussion)
                  Control0..*
                  TypeIdentifier
                  Is Modifierfalse
                  Summarytrue
                  Requirements

                  Allows identification of the flag as it is known by various participating systems and in a way that remains consistent across servers.

                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  SlicingThis element introduces a set of slices on Flag.identifier. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                  • value @ system
                  • 68. Flag.identifier.id
                    Definition

                    Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                    ShortUnique id for inter-element referencing
                    Control0..1
                    Typestring
                    Is Modifierfalse
                    XML FormatIn the XML format, this property is represented as an attribute.
                    Summaryfalse
                    70. Flag.identifier.extension
                    Definition

                    May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                    ShortAdditional content defined by implementations
                    Comments

                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                    Control0..*
                    TypeExtension
                    Is Modifierfalse
                    Summaryfalse
                    Alternate Namesextensions, user content
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                    SlicingThis element introduces a set of slices on Flag.identifier.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                    • value @ url
                    • 72. Flag.identifier.use
                      Definition

                      The purpose of this identifier.

                      Shortusual | official | temp | secondary | old (If known)
                      Comments

                      Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.

                      Control0..1
                      BindingThe codes SHALL be taken from IdentifierUse
                      (required to http://hl7.org/fhir/ValueSet/identifier-use|4.0.1)

                      Identifies the purpose for this identifier, if known .

                      Typecode
                      Is Modifiertrue because This is labeled as "Is Modifier" because applications should not mistake a temporary id for a permanent one.
                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                      Summarytrue
                      Requirements

                      Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers.

                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      74. Flag.identifier.type
                      Definition

                      A coded type for the identifier that can be used to determine which identifier to use for a specific purpose.

                      ShortDescription of identifier
                      Comments

                      This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type.

                      Control0..1
                      BindingUnless not suitable, these codes SHALL be taken from Identifier Type Codes
                      (extensible to http://hl7.org/fhir/ValueSet/identifier-type)

                      A coded type for an identifier that can be used to determine which identifier to use for a specific purpose.

                      TypeCodeableConcept
                      Is Modifierfalse
                      Summarytrue
                      Requirements

                      Allows users to make use of identifiers when the identifier system is not known.

                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      76. Flag.identifier.system
                      Definition

                      Establishes the namespace for the value - that is, a URL that describes a set values that are unique.

                      ShortThe namespace for the identifier value
                      Comments

                      Identifier.system is always case sensitive.

                      Control0..1
                      Typeuri
                      Is Modifierfalse
                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                      Summarytrue
                      Requirements

                      There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers.

                      Example<br/><b>General</b>:http://www.acme.com/identifiers/patient
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      78. Flag.identifier.value
                      Definition

                      The portion of the identifier typically relevant to the user and which is unique within the context of the system.

                      ShortThe value that is unique
                      Comments

                      If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe.

                      Control0..1
                      Typestring
                      Is Modifierfalse
                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                      Summarytrue
                      Example<br/><b>General</b>:123456
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      80. Flag.identifier.period
                      Definition

                      Time period during which identifier is/was valid for use.

                      ShortTime period when id is/was valid for use
                      Control0..1
                      TypePeriod
                      Is Modifierfalse
                      Summarytrue
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      82. Flag.identifier.assigner
                      Definition

                      Organization that issued/manages the identifier.

                      ShortOrganization that issued id (may be just text)
                      Comments

                      The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization.

                      Control0..1
                      TypeReference(InterweaveOrganization)
                      Is Modifierfalse
                      Summarytrue
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      84. Flag.identifier:localIdentifier
                      Slice NamelocalIdentifier
                      Definition

                      Business identifiers assigned to this flag by the performer or other systems which remain constant as the resource is updated and propagates from server to server.

                      ShortBusiness identifier
                      Comments

                      This is a business identifier, not a resource identifier (see discussion). It is best practice for the identifier to only appear on a single resource instance, however business practices may occasionally dictate that multiple resource instances with the same identifier can exist - possibly even with different resource types. For example, multiple Patient and a Person resource instance might share the same social insurance number.

                      NoteThis is a business identifier, not a resource identifier (see discussion)
                      Control0..1
                      TypeIdentifier
                      Is Modifierfalse
                      Summarytrue
                      Requirements

                      Allows identification of the flag as it is known by various participating systems and in a way that remains consistent across servers.

                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      86. Flag.identifier:localIdentifier.id
                      Definition

                      Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                      ShortUnique id for inter-element referencing
                      Control0..1
                      Typestring
                      Is Modifierfalse
                      XML FormatIn the XML format, this property is represented as an attribute.
                      Summaryfalse
                      88. Flag.identifier:localIdentifier.extension
                      Definition

                      May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                      ShortAdditional content defined by implementations
                      Comments

                      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                      Control0..*
                      TypeExtension
                      Is Modifierfalse
                      Summaryfalse
                      Alternate Namesextensions, user content
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                      SlicingThis element introduces a set of slices on Flag.identifier.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                      • value @ url
                      • 90. Flag.identifier:localIdentifier.use
                        Definition

                        The purpose of this identifier.

                        Shortusual | official | temp | secondary | old (If known)
                        Comments

                        Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.

                        Control0..1
                        BindingThe codes SHALL be taken from IdentifierUse
                        (required to http://hl7.org/fhir/ValueSet/identifier-use|4.0.1)

                        Identifies the purpose for this identifier, if known .

                        Typecode
                        Is Modifiertrue because This is labeled as "Is Modifier" because applications should not mistake a temporary id for a permanent one.
                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                        Summarytrue
                        Requirements

                        Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers.

                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        92. Flag.identifier:localIdentifier.type
                        Definition

                        A coded type for the identifier that can be used to determine which identifier to use for a specific purpose.

                        ShortDescription of identifier
                        Comments

                        This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type.

                        Control0..1
                        BindingUnless not suitable, these codes SHALL be taken from Identifier Type Codes
                        (extensible to http://hl7.org/fhir/ValueSet/identifier-type)

                        A coded type for an identifier that can be used to determine which identifier to use for a specific purpose.

                        TypeCodeableConcept
                        Is Modifierfalse
                        Summarytrue
                        Requirements

                        Allows users to make use of identifiers when the identifier system is not known.

                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        94. Flag.identifier:localIdentifier.system
                        Definition

                        Establishes the namespace for the value - that is, a URL that describes a set values that are unique.

                        ShortThe namespace for the identifier value
                        Comments

                        Identifier.system is always case sensitive.

                        Control1..1
                        Typeuri
                        Is Modifierfalse
                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                        Must Supporttrue
                        Summarytrue
                        Requirements

                        There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers.

                        Fixed Valuehttps://fhir.interweavedigital.nhs.uk/Id/local-flag-identifier
                        Example<br/><b>General</b>:http://www.acme.com/identifiers/patient
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        96. Flag.identifier:localIdentifier.value
                        Definition

                        The portion of the identifier typically relevant to the user and which is unique within the context of the system.

                        ShortThe Local flag Identifier. Please prefix with ODS code plus period (XXX.) to ensure unique
                        Comments

                        If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe.

                        Control1..1
                        Typestring
                        Is Modifierfalse
                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                        Must Supporttrue
                        Summarytrue
                        Example<br/><b>General</b>:123456
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        98. Flag.identifier:localIdentifier.period
                        Definition

                        Time period during which identifier is/was valid for use.

                        ShortTime period when id is/was valid for use
                        Control0..0
                        TypePeriod
                        Is Modifierfalse
                        Summarytrue
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        100. Flag.identifier:localIdentifier.assigner
                        Definition

                        Organization that issued/manages the identifier.

                        ShortOrganization that issued id (may be just text)
                        Comments

                        The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization.

                        Control0..1
                        TypeReference(Organization)
                        Is Modifierfalse
                        Summarytrue
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        102. Flag.status
                        Definition

                        Supports basic workflow.

                        ShortIndicates whether this flag is active or it is no longer active and needs to be displayed to a user.
                        Comments

                        This element is labeled as a modifier because the status contains codes that mark the resource as not currently valid.

                        Control1..1
                        BindingThe codes SHALL be taken from FlagStatus
                        (required to http://hl7.org/fhir/ValueSet/flag-status|4.0.1)

                        Indicates whether this flag is active and needs to be displayed to a user, or whether it is no longer needed or was entered in error.

                        Typecode
                        Is Modifiertrue because This element is labelled as a modifier because it is a status element that contains status entered-in-error which means that the resource should not be treated as valid
                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                        Must Supporttrue
                        Summarytrue
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        104. Flag.category
                        Definition

                        Allows a flag to be divided into different categories like clinical, administrative etc. Intended to be used as a means of filtering which flags are displayed to particular user or in a given context.

                        ShortClinical, administrative, etc.
                        Comments

                        The value set will often need to be adjusted based on local business rules and usage context.

                        Control1..1
                        BindingThe codes SHALL be taken from InterweaveFlagCategory
                        (required to https://fhir.interweavedigital.nhs.uk/R4/ValueSet/Interweave-FlagCategory)
                        TypeCodeableConcept
                        Is Modifierfalse
                        Must Supporttrue
                        Summarytrue
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        106. Flag.category.id
                        Definition

                        Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                        ShortUnique id for inter-element referencing
                        Control0..1
                        Typestring
                        Is Modifierfalse
                        XML FormatIn the XML format, this property is represented as an attribute.
                        Summaryfalse
                        108. Flag.category.extension
                        Definition

                        May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                        ShortAdditional content defined by implementations
                        Comments

                        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                        Control0..*
                        TypeExtension
                        Is Modifierfalse
                        Summaryfalse
                        Alternate Namesextensions, user content
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                        SlicingThis element introduces a set of slices on Flag.category.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                        • value @ url
                        • 110. Flag.category.coding
                          Definition

                          A reference to a code defined by a terminology system.

                          ShortCode defined by a terminology system
                          Comments

                          Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

                          Control0..*
                          TypeCoding
                          Is Modifierfalse
                          Summarytrue
                          Requirements

                          Allows for alternative encodings within a code system, and translations to other code systems.

                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          112. Flag.category.coding.id
                          Definition

                          Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                          ShortUnique id for inter-element referencing
                          Control0..1
                          Typestring
                          Is Modifierfalse
                          XML FormatIn the XML format, this property is represented as an attribute.
                          Summaryfalse
                          114. Flag.category.coding.extension
                          Definition

                          May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                          ShortAdditional content defined by implementations
                          Comments

                          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                          Control0..*
                          TypeExtension
                          Is Modifierfalse
                          Summaryfalse
                          Alternate Namesextensions, user content
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                          SlicingThis element introduces a set of slices on Flag.category.coding.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                          • value @ url
                          • 116. Flag.category.coding.system
                            Definition

                            The identification of the code system that defines the meaning of the symbol in the code.

                            ShortIdentity of the terminology system
                            Comments

                            The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.

                            Control1..1
                            Typeuri
                            Is Modifierfalse
                            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                            Summarytrue
                            Requirements

                            Need to be unambiguous about the source of the definition of the symbol.

                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            118. Flag.category.coding.version
                            Definition

                            The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.

                            ShortVersion of the system - if relevant
                            Comments

                            Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.

                            NoteThis is a business version Id, not a resource version Id (see discussion)
                            Control0..1
                            Typestring
                            Is Modifierfalse
                            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                            Summarytrue
                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            120. Flag.category.coding.code
                            Definition

                            A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

                            ShortSymbol in syntax defined by the system
                            Control1..1
                            Typecode
                            Is Modifierfalse
                            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                            Summarytrue
                            Requirements

                            Need to refer to a particular code in the system.

                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            122. Flag.category.coding.display
                            Definition

                            A representation of the meaning of the code in the system, following the rules of the system.

                            ShortRepresentation defined by the system
                            Control1..1
                            Typestring
                            Is Modifierfalse
                            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                            Summarytrue
                            Requirements

                            Need to be able to carry a human-readable meaning of the code for readers that do not know the system.

                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            124. Flag.category.coding.userSelected
                            Definition

                            Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays).

                            ShortIf this coding was chosen directly by the user
                            Comments

                            Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.

                            Control0..1
                            Typeboolean
                            Is Modifierfalse
                            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                            Summarytrue
                            Requirements

                            This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing.

                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            126. Flag.category.text
                            Definition

                            A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

                            ShortPlain text representation of the concept
                            Comments

                            Very often the text is the same as a displayName of one of the codings.

                            Control0..1
                            Typestring
                            Is Modifierfalse
                            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                            Summarytrue
                            Requirements

                            The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            128. Flag.code
                            Definition

                            The coded value or textual component of the flag to display to the user.

                            ShortCoded or textual message to display to user
                            Comments

                            If non-coded, use CodeableConcept.text. This element should always be included in the narrative.

                            Control1..1
                            BindingThe codes SHOULD be taken from InterweaveFlagType
                            (preferred to https://fhir.interweavedigital.nhs.uk/R4/ValueSet/Interweave-FlagType)
                            TypeCodeableConcept
                            Is Modifierfalse
                            Must Supporttrue
                            Summarytrue
                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            130. Flag.code.id
                            Definition

                            Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                            ShortUnique id for inter-element referencing
                            Control0..1
                            Typestring
                            Is Modifierfalse
                            XML FormatIn the XML format, this property is represented as an attribute.
                            Summaryfalse
                            132. Flag.code.extension
                            Definition

                            May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                            ShortAdditional content defined by implementations
                            Comments

                            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                            Control0..*
                            TypeExtension
                            Is Modifierfalse
                            Summaryfalse
                            Alternate Namesextensions, user content
                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                            SlicingThis element introduces a set of slices on Flag.code.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                            • value @ url
                            • 134. Flag.code.coding
                              Definition

                              A reference to a code defined by a terminology system.

                              ShortCode defined by a terminology system
                              Comments

                              Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

                              Control0..*
                              TypeCoding
                              Is Modifierfalse
                              Summarytrue
                              Requirements

                              Allows for alternative encodings within a code system, and translations to other code systems.

                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                              136. Flag.code.coding.id
                              Definition

                              Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                              ShortUnique id for inter-element referencing
                              Control0..1
                              Typestring
                              Is Modifierfalse
                              XML FormatIn the XML format, this property is represented as an attribute.
                              Summaryfalse
                              138. Flag.code.coding.extension
                              Definition

                              May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                              ShortAdditional content defined by implementations
                              Comments

                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                              Control0..*
                              TypeExtension
                              Is Modifierfalse
                              Summaryfalse
                              Alternate Namesextensions, user content
                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                              SlicingThis element introduces a set of slices on Flag.code.coding.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                              • value @ url
                              • 140. Flag.code.coding.system
                                Definition

                                The identification of the code system that defines the meaning of the symbol in the code.

                                ShortIdentity of the terminology system
                                Comments

                                The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.

                                Control1..1
                                Typeuri
                                Is Modifierfalse
                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                Summarytrue
                                Requirements

                                Need to be unambiguous about the source of the definition of the symbol.

                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                142. Flag.code.coding.version
                                Definition

                                The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.

                                ShortVersion of the system - if relevant
                                Comments

                                Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.

                                NoteThis is a business version Id, not a resource version Id (see discussion)
                                Control0..1
                                Typestring
                                Is Modifierfalse
                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                Summarytrue
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                144. Flag.code.coding.code
                                Definition

                                A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

                                ShortSymbol in syntax defined by the system
                                Control1..1
                                Typecode
                                Is Modifierfalse
                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                Summarytrue
                                Requirements

                                Need to refer to a particular code in the system.

                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                146. Flag.code.coding.display
                                Definition

                                A representation of the meaning of the code in the system, following the rules of the system.

                                ShortRepresentation defined by the system
                                Control1..1
                                Typestring
                                Is Modifierfalse
                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                Summarytrue
                                Requirements

                                Need to be able to carry a human-readable meaning of the code for readers that do not know the system.

                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                148. Flag.code.coding.userSelected
                                Definition

                                Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays).

                                ShortIf this coding was chosen directly by the user
                                Comments

                                Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.

                                Control0..1
                                Typeboolean
                                Is Modifierfalse
                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                Summarytrue
                                Requirements

                                This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing.

                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                150. Flag.code.text
                                Definition

                                A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

                                ShortPlain text representation of the concept
                                Comments

                                Very often the text is the same as a displayName of one of the codings.

                                Control0..1
                                Typestring
                                Is Modifierfalse
                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                Summarytrue
                                Requirements

                                The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                152. Flag.subject
                                Definition

                                The patient, location, group, organization, or practitioner etc. this is about record this flag is associated with.

                                ShortThe patient to which the flag is assigned.
                                Control1..1
                                TypeReference(InterweavePatient)
                                Is Modifierfalse
                                Must Supporttrue
                                Summarytrue
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                154. Flag.subject.id
                                Definition

                                Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                ShortUnique id for inter-element referencing
                                Control0..1
                                Typestring
                                Is Modifierfalse
                                XML FormatIn the XML format, this property is represented as an attribute.
                                Summaryfalse
                                156. Flag.subject.extension
                                Definition

                                May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                ShortAdditional content defined by implementations
                                Comments

                                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                Control0..*
                                TypeExtension
                                Is Modifierfalse
                                Summaryfalse
                                Alternate Namesextensions, user content
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                SlicingThis element introduces a set of slices on Flag.subject.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                • value @ url
                                • 158. Flag.subject.reference
                                  Definition

                                  A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.

                                  ShortReference to a resource (could be Contained)
                                  Comments

                                  Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

                                  Control1..1
                                  This element is affected by the following invariants: ref-1
                                  Typestring
                                  Is Modifierfalse
                                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                  Summarytrue
                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  160. Flag.subject.type
                                  Definition

                                  The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent.

                                  The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources).

                                  ShortType the reference refers to (e.g. "Patient")
                                  Comments

                                  This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified.

                                  Control0..1
                                  BindingUnless not suitable, these codes SHALL be taken from ResourceType
                                  (extensible to http://hl7.org/fhir/ValueSet/resource-types)

                                  Aa resource (or, for logical models, the URI of the logical model).

                                  Typeuri
                                  Is Modifierfalse
                                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                  Summarytrue
                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  162. Flag.subject.identifier
                                  Definition

                                  An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

                                  ShortIf relevant could include an id
                                  Comments

                                  When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy.

                                  When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference

                                  Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.

                                  Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any).

                                  NoteThis is a business identifier, not a resource identifier (see discussion)
                                  Control0..1
                                  TypeIdentifier
                                  Is Modifierfalse
                                  Summarytrue
                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  164. Flag.subject.display
                                  Definition

                                  Plain text narrative that identifies the resource in addition to the resource reference.

                                  ShortDescription of the referenced resource
                                  Comments

                                  This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it.

                                  Control1..1
                                  Typestring
                                  Is Modifierfalse
                                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                  Summarytrue
                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  166. Flag.period
                                  Definition

                                  The period of time from the activation of the flag to inactivation of the flag. If the flag is active, the end of the period should be unspecified.

                                  ShortTime period when flag is active
                                  Control0..1
                                  TypePeriod
                                  Is Modifierfalse
                                  Summarytrue
                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  168. Flag.period.id
                                  Definition

                                  Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                  ShortUnique id for inter-element referencing
                                  Control0..1
                                  Typestring
                                  Is Modifierfalse
                                  XML FormatIn the XML format, this property is represented as an attribute.
                                  Summaryfalse
                                  170. Flag.period.extension
                                  Definition

                                  May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                  ShortAdditional content defined by implementations
                                  Comments

                                  There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                  Control0..*
                                  TypeExtension
                                  Is Modifierfalse
                                  Summaryfalse
                                  Alternate Namesextensions, user content
                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                  SlicingThis element introduces a set of slices on Flag.period.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                  • value @ url
                                  • 172. Flag.period.start
                                    Definition

                                    The start of the period. The boundary is inclusive.

                                    ShortThe date that the flag was placed against the patient
                                    Comments

                                    If the low element is missing, the meaning is that the low boundary is not known.

                                    Control0..1
                                    This element is affected by the following invariants: per-1
                                    TypedateTime
                                    Is Modifierfalse
                                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                    Must Supporttrue
                                    Summarytrue
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    174. Flag.period.end
                                    Definition

                                    The end of the period. If the end of the period is missing, it means no end was known or planned at the time the instance was created. The start may be in the past, and the end date in the future, which means that period is expected/planned to end at that time.

                                    ShortEnd time with inclusive boundary, if not ongoing
                                    Comments

                                    The high value includes any matching date/time. i.e. 2012-02-03T10:00:00 is in a period that has an end value of 2012-02-03.

                                    Control0..1
                                    This element is affected by the following invariants: per-1
                                    TypedateTime
                                    Is Modifierfalse
                                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                    Summarytrue
                                    Meaning if MissingIf the end of the period is missing, it means that the period is ongoing
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    176. Flag.encounter
                                    Definition

                                    This alert is only relevant during the encounter.

                                    ShortAlert relevant during encounter
                                    Comments

                                    If both Flag.encounter and Flag.period are valued, then Flag.period.start shall not be before Encounter.period.start and Flag.period.end shall not be after Encounter.period.end.

                                    Control0..0
                                    TypeReference(Encounter)
                                    Is Modifierfalse
                                    Summarytrue
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    178. Flag.author
                                    Definition

                                    The person, organization or device that created the flag.

                                    ShortThe practitioner, organizational team or organization which placed the flag against the patient.
                                    Control0..1
                                    TypeReference(InterweavePractitioner, InterweaveOrganization, InterweaveOrganizationalTeam)
                                    Is Modifierfalse
                                    Summarytrue
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))