<status value="draft" /> <experimental value="false" /> <date value="2026-02-26" /> <publisher value="NHS Wales" /> <copyright value="2026 NHS Wales" /> <fhirVersion value="4.0.1" /> <kind value="resource" /> <abstract value="false" /> <type value="DocumentReference" /> <baseDefinition value="http://hl7.org/fhir/StructureDefinition/DocumentReference" /> <derivation value="constraint" /> <differential> <element id="DocumentReference.extension"> <path value="DocumentReference.extension" /> <min value="1" /> </element> <element id="DocumentReference.extension:digitalStatus"> <path value="DocumentReference.extension" /> <sliceName value="digitalStatus" /> <type> <code value="Extension" /> <profile value="https://fhir.nhs.wales/StructureDefinition/Extension-DataStandardsWales-DocumentDigitalStatus" /> </type> <isModifier value="false" /> </element> <element id="DocumentReference.extension:sourceSystem"> <path value="DocumentReference.extension" /> <sliceName value="sourceSystem" /> <type> <code value="Extension" /> <profile value="https://fhir.nhs.wales/StructureDefinition/Extension-DataStandardsWales-SourceSystem" /> </type> <mustSupport value="true" /> <isModifier value="false" /> </element> <element id="DocumentReference.extension:versionR5"> <path value="DocumentReference.extension" /> <sliceName value="versionR5" /> <max value="1" /> <type> <code value="Extension" /> <profile value="https://fhir.nhs.wales/StructureDefinition/Extension-DataStandardsWales-DocumentReference.version" /> </type> <mustSupport value="true" /> <isModifier value="false" /> </element> <element id="DocumentReference.extension:attesterR5"> <path value="DocumentReference.extension" /> <sliceName value="attesterR5" /> <type> <code value="Extension" /> <profile value="https://fhir.nhs.wales/StructureDefinition/Extension-DataStandardsWales-DocumentReference.attester" /> </type> <mustSupport value="true" /> <isModifier value="false" /> </element> <element id="DocumentReference.extension:errorStatus"> <path value="DocumentReference.extension" /> <sliceName value="errorStatus" /> <type> <code value="Extension" /> <profile value="https://fhir.nhs.wales/StructureDefinition/Extension-DataStandardsWales-DocumentErrorStatus" /> </type> <mustSupport value="true" /> <isModifier value="false" /> </element> <element id="DocumentReference.extension:errorAction"> <path value="DocumentReference.extension" /> <sliceName value="errorAction" /> <type> <code value="Extension" /> <profile value="https://fhir.nhs.wales/StructureDefinition/Extension-DataStandardsWales-DocumentErrorAction" /> </type> <isModifier value="false" /> </element> <element id="DocumentReference.extension:documentAttribute"> <path value="DocumentReference.extension" /> <sliceName value="documentAttribute" /> <type> <code value="Extension" /> <profile value="https://fhir.nhs.wales/StructureDefinition/Extension-DataStandardsWales-DocumentAttribute" /> </type> <isModifier value="false" /> </element> <element id="DocumentReference.masterIdentifier"> <path value="DocumentReference.masterIdentifier" /> <max value="0" /> </element> <element id="DocumentReference.identifier"> <path value="DocumentReference.identifier" /> <slicing> <description value="Slices provided for the different types of national identifiers issued by the Welsh Care Records Service." /> <rules value="open" /> </slicing> <mustSupport value="true" /> </element> <element id="DocumentReference.identifier:wcrsDocumentId"> <path value="DocumentReference.identifier" /> <sliceName value="wcrsDocumentId" /> <short value="The WCRS DocumentId." /> <definition value="The version-specific DocumentId issued by the Welsh Care Records Service." /> <max value="1" /> </element> <element id="DocumentReference.identifier:wcrsDocumentId.system"> <path value="DocumentReference.identifier.system" /> <fixedUri value="https://fhir.nhs.wales/Id/wcrs-document-identifier" /> </element> <element id="DocumentReference.identifier:wcrsSupersessionSetId"> <path value="DocumentReference.identifier" /> <sliceName value="wcrsSupersessionSetId" /> <short value="The WCRS DocumentSupersessionSetId." /> <definition value="The version-independent DocumentSupersessionSetId issued by the Welsh Care Records Service." /> <max value="1" /> </element> <element id="DocumentReference.identifier:wcrsSupersessionSetId.system"> <path value="DocumentReference.identifier.system" /> <fixedUri value="https://fhir.nhs.wales/Id/wcrs-supersession-set-identifier" /> </element> <element id="DocumentReference.docStatus"> <path value="DocumentReference.docStatus" /> <mustSupport value="true" /> </element> <element id="DocumentReference.type"> <path value="DocumentReference.type" /> <short value="Kind of document" /> <min value="1" /> <mustSupport value="true" /> <binding> <strength value="extensible" /> <valueSet value="https://fhir.nhs.wales/ValueSet/DataStandardsWales-DocumentType" /> </binding> </element> <element id="DocumentReference.category"> <path value="DocumentReference.category" /> <min value="1" /> <mustSupport value="true" /> <binding> <strength value="extensible" /> <valueSet value="https://fhir.nhs.wales/ValueSet/DataStandardsWales-DocumentCategory" /> </binding> </element> <element id="DocumentReference.subject"> <path value="DocumentReference.subject" /> <type> <code value="Reference" /> <targetProfile value="https://fhir.nhs.wales/StructureDefinition/DataStandardsWales-Patient" /> <targetProfile value="https://fhir.nhs.wales/StructureDefinition/DataStandardsWales-Practitioner" /> <targetProfile value="http://hl7.org/fhir/StructureDefinition/Group" /> <targetProfile value="https://fhir.nhs.wales/StructureDefinition/DataStandardsWales-Device" /> </type> <mustSupport value="true" /> </element> <element id="DocumentReference.date"> <path value="DocumentReference.date" /> <mustSupport value="true" /> </element> <element id="DocumentReference.author"> <path value="DocumentReference.author" /> <type> <code value="Reference" /> <targetProfile value="https://fhir.nhs.wales/StructureDefinition/DataStandardsWales-Practitioner" /> <targetProfile value="https://fhir.nhs.wales/StructureDefinition/DataStandardsWales-PractitionerRole" /> <targetProfile value="https://fhir.nhs.wales/StructureDefinition/DataStandardsWales-Organization" /> <targetProfile value="https://fhir.nhs.wales/StructureDefinition/DataStandardsWales-Device" /> <targetProfile value="https://fhir.nhs.wales/StructureDefinition/DataStandardsWales-Patient" /> <targetProfile value="https://fhir.nhs.wales/StructureDefinition/DataStandardsWales-RelatedPerson" /> </type> <mustSupport value="true" /> </element> <element id="DocumentReference.authenticator"> <path value="DocumentReference.authenticator" /> <max value="0" /> <type> <code value="Reference" /> <targetProfile value="https://fhir.nhs.wales/StructureDefinition/DataStandardsWales-Practitioner" /> <targetProfile value="https://fhir.nhs.wales/StructureDefinition/DataStandardsWales-PractitionerRole" /> <targetProfile value="https://fhir.nhs.wales/StructureDefinition/DataStandardsWales-Organization" /> </type> <mustSupport value="false" /> </element> <element id="DocumentReference.custodian"> <path value="DocumentReference.custodian" /> <type> <code value="Reference" /> <targetProfile value="https://fhir.nhs.wales/StructureDefinition/DataStandardsWales-Organization" /> </type> <mustSupport value="true" /> </element> <element id="DocumentReference.relatesTo.target"> <path value="DocumentReference.relatesTo.target" /> <type> <code value="Reference" /> <targetProfile value="https://fhir.nhs.wales/StructureDefinition/DataStandardsWales-DocumentReference" /> </type> </element> <element id="DocumentReference.securityLabel"> <path value="DocumentReference.securityLabel" /> <mustSupport value="true" /> </element> <element id="DocumentReference.content.attachment.language"> <path value="DocumentReference.content.attachment.language" /> <short value="Human language of the content" /> <definition value="The human language of the content. Within NHS Wales, the three character ISO 639-3 code should be used where possible e.g. "eng" for English, "cym" for Welsh." /> <requirements value="Users need to be able to choose between the languages in a set of attachments. ISO 639-3 is a subset of the BCP 47 standard." /> </element> <element id="DocumentReference.content.format"> <path value="DocumentReference.content.format" /> <definition value="An identifier of the document encoding, structure, and template that the document conforms to beyond the base format indicated in the mimeType. This optional field is not part of the formal metadata standard for document submission in Wales. It should not be confused with mime type which is stored as content.attachment.contentType." /> </element> <element id="DocumentReference.context.encounter"> <path value="DocumentReference.context.encounter" /> <type> <code value="Reference" /> <targetProfile value="https://fhir.nhs.wales/StructureDefinition/DataStandardsWales-Encounter" /> <targetProfile value="http://hl7.org/fhir/StructureDefinition/EpisodeOfCare" /> </type> </element> <element id="DocumentReference.context.practiceSetting"> <path value="DocumentReference.context.practiceSetting" /> <mustSupport value="true" /> <binding> <strength value="required" /> <valueSet value="https://fhir.hl7.org.uk/ValueSet/UKCore-PracticeSettingCode" /> </binding> </element> <element id="DocumentReference.context.sourcePatientInfo"> <path value="DocumentReference.context.sourcePatientInfo" /> <max value="0" /> <type> <code value="Reference" /> <targetProfile value="https://fhir.nhs.wales/StructureDefinition/DataStandardsWales-Patient" /> </type> </element> <element id="DocumentReference.context.related"> <path value="DocumentReference.context.related" /> <type> <code value="Reference" /> <targetProfile value="http://hl7.org/fhir/StructureDefinition/Resource" /> <targetProfile value="https://fhir.nhs.wales/StructureDefinition/DataStandardsWales-Practitioner" /> <targetProfile value="https://fhir.nhs.wales/StructureDefinition/DataStandardsWales-PractitionerRole" /> <targetProfile value="https://fhir.nhs.wales/StructureDefinition/DataStandardsWales-Organization" /> <targetProfile value="https://fhir.nhs.wales/StructureDefinition/DataStandardsWales-Location" /> </type> </element> </differential> </StructureDefinition>