description: This cross-version extension represents DocumentReference.practiceSetting from http://hl7.org/fhir/StructureDefinition/DocumentReference|5.0.0 for use in FHIR R4B. package_name: hl7.fhir.uv.xver derivation: constraint name: ext_R5_DocumentReference_practiceSetting type: Extension elements: value: base: {path: 'Extension.value[x]'} short: Additional details about where the content was created (e.g. clinical specialty) choices: [valueCodeableConcept] index: 1 valueCodeableConcept: base: {path: 'Extension.value[x]'} type: CodeableConcept short: Additional details about where the content was created (e.g. clinical specialty) choiceOf: value index: 2 url: pattern: {type: Uri, value: 'http://hl7.org/fhir/5.0/StructureDefinition/extension-DocumentReference.practiceSetting'} index: 3 package_version: r5.r4b-0.0.1-snapshot-1 class: extension kind: complex-type url: http://hl7.org/fhir/5.0/StructureDefinition/extension-DocumentReference.practiceSetting base: http://hl7.org/fhir/StructureDefinition/Extension version: 0.0.1-snapshot-1 required: [url]