{
  "description": "This extension shows document attributes.",
  "_filename": "Extension-DataStandardsWales-DocumentAttribute.json",
  "package_name": "fhir.r4.wales",
  "date": "2025-08-18",
  "derivation": "constraint",
  "publisher": "NHS Wales",
  "fhirVersion": "4.0.1",
  "purpose": "This extension shows document attributes.",
  "name": "ExtensionDataStandardsWalesDocumentAttribute",
  "abstract": false,
  "copyright": "2025 NHS Wales",
  "type": "Extension",
  "experimental": "true",
  "resourceType": "StructureDefinition",
  "title": "Extension Data Standards Wales Document Attribute",
  "package_version": "2.3.0",
  "status": "draft",
  "id": "2f8e07ce-d16f-4dbd-97b8-b082adbc15d7",
  "kind": "complex-type",
  "url": "https://fhir.nhs.wales/StructureDefinition/Extension-DataStandardsWales-DocumentAttribute",
  "context": [ {
    "type": "element",
    "expression": "DocumentReference"
  } ],
  "version": "0.0.1",
  "differential": {
    "element": [ {
      "id": "Extension",
      "path": "Extension",
      "short": "Additional metadata for the document",
      "definition": "Additional metadata as applicable to the document type.  This element should be used with care to avoid a proliferation of undefined metadata."
    }, {
      "id": "Extension.extension",
      "min": 1,
      "path": "Extension.extension",
      "requirements": "Included for legacy data not explicitly handled via DocumentReference and related resources."
    }, {
      "id": "Extension.extension:attributeName",
      "max": "1",
      "min": 1,
      "path": "Extension.extension",
      "short": "The name code for the document attribute.",
      "sliceName": "attributeName",
      "definition": "A formal descriptive code for the document attribute e.g. ShareWithReferrer."
    }, {
      "id": "Extension.extension:attributeName.extension",
      "max": "0",
      "path": "Extension.extension.extension"
    }, {
      "id": "Extension.extension:attributeName.url",
      "path": "Extension.extension.url",
      "fixedUri": "attributeName"
    }, {
      "id": "Extension.extension:attributeName.value[x]",
      "path": "Extension.extension.value[x]",
      "type": [ {
        "code": "code"
      } ],
      "binding": {
        "strength": "required",
        "valueSet": "https://fhir.nhs.wales/ValueSet/FHIRStandardsWales-DocumentAttribute",
        "description": "User-readable semantic codes for allowed attributes.  Based on document metadata data held as document attributes in the Welsh Care Records Service and not represented via dedicated elements."
      }
    }, {
      "id": "Extension.extension:attributeValue",
      "max": "1",
      "path": "Extension.extension",
      "short": "The value recorded against the document attribute.",
      "sliceName": "attributeValue",
      "definition": "The value recorded against the document attribute.  This is modelled as a string format for flexibility.  The actual datatype of the value will depend upon the specific document attribute.  For example some may be dates, other integers and others a fixed list of codes."
    }, {
      "id": "Extension.extension:attributeValue.extension",
      "max": "0",
      "path": "Extension.extension.extension"
    }, {
      "id": "Extension.extension:attributeValue.url",
      "path": "Extension.extension.url",
      "fixedUri": "attributeValue"
    }, {
      "id": "Extension.extension:attributeValue.value[x]",
      "min": 1,
      "path": "Extension.extension.value[x]",
      "type": [ {
        "code": "string"
      } ]
    }, {
      "id": "Extension.extension:attributeNamespace",
      "max": "1",
      "path": "Extension.extension",
      "short": "The namespace associated with the document attribute value.",
      "sliceName": "attributeNamespace",
      "definition": "The namespace associated with the document attribute value where relevant for the specific document attribute.  Note that for some attributes namespace may vary according to value domain.",
      "sliceIsConstraining": false
    }, {
      "id": "Extension.extension:attributeNamespace.extension",
      "max": "0",
      "path": "Extension.extension.extension"
    }, {
      "id": "Extension.extension:attributeNamespace.url",
      "path": "Extension.extension.url",
      "fixedUri": "attributeNamespace"
    }, {
      "id": "Extension.extension:attributeNamespace.value[x]",
      "path": "Extension.extension.value[x]",
      "type": [ {
        "code": "string"
      } ]
    }, {
      "id": "Extension.extension:valueDomain",
      "max": "1",
      "path": "Extension.extension",
      "short": "The specific domain to which the value of the document attribute belongs.",
      "sliceName": "valueDomain",
      "definition": "Some document attributes contain different sets of values for a pre-defined set of domains.  In this case, the value domain provides the context for the value, to provide an unambiguous meaning."
    }, {
      "id": "Extension.extension:valueDomain.extension",
      "max": "0",
      "path": "Extension.extension.extension"
    }, {
      "id": "Extension.extension:valueDomain.url",
      "path": "Extension.extension.url",
      "fixedUri": "valueDomain"
    }, {
      "id": "Extension.extension:valueDomain.value[x]",
      "path": "Extension.extension.value[x]",
      "type": [ {
        "code": "string"
      } ]
    }, {
      "id": "Extension.url",
      "path": "Extension.url",
      "fixedUri": "https://fhir.nhs.wales/StructureDefinition/Extension-DataStandardsWales-DocumentAttribute"
    }, {
      "id": "Extension.value[x]",
      "max": "0",
      "path": "Extension.value[x]",
      "type": [ {
        "code": "string"
      } ]
    } ]
  },
  "contact": [ {
    "name": "FHIR Standards",
    "telecom": [ {
      "use": "work",
      "rank": 1,
      "value": "fhir.standards@wales.nhs.uk",
      "system": "email"
    } ]
  } ],
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension"
}