description: This cross-version extension represents ObservationDefinition.abnormalCodedValueSet from http://hl7.org/fhir/StructureDefinition/ObservationDefinition|4.0.1 for use in FHIR R5. package_name: hl7.fhir.uv.xver-r4.r5 derivation: constraint name: ext_R4_ObservationDefinition_abnormalCodedValueSet type: Extension elements: value: base: {path: 'Extension.value[x]'} short: Value set of abnormal coded values for the observations conforming to this ObservationDefinition choices: [valueReference] index: 1 valueReference: short: Value set of abnormal coded values for the observations conforming to this ObservationDefinition refers: ['http://hl7.org/fhir/StructureDefinition/ValueSet'] type: Reference base: {path: 'Extension.value[x]'} choiceOf: value index: 2 url: pattern: {type: uri, value: 'http://hl7.org/fhir/4.0/StructureDefinition/extension-ObservationDefinition.abnormalCodedValueSet'} type: uri index: 3 package_version: 0.0.1-snapshot-1 class: extension kind: complex-type url: http://hl7.org/fhir/4.0/StructureDefinition/extension-ObservationDefinition.abnormalCodedValueSet base: http://hl7.org/fhir/StructureDefinition/Extension version: 0.0.1-snapshot-1 required: [url]