description: This cross-version extension represents ObservationDefinition.validCodedValueSet from http://hl7.org/fhir/StructureDefinition/ObservationDefinition|4.0.1 for use in FHIR R5. package_name: rs/hl7.fhir.uv.xver derivation: constraint name: ext_R4_ObservationDefinition_validCodedValueSet type: Extension elements: value: base: {path: 'Extension.value[x]'} short: Value set of valid coded values for the observations conforming to this ObservationDefinition choices: [valueReference] index: 1 valueReference: short: Value set of valid 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.validCodedValueSet'} type: uri index: 3 package_version: r4.r5-0.0.1-snapshot-1 class: extension kind: complex-type url: http://hl7.org/fhir/4.0/StructureDefinition/extension-ObservationDefinition.validCodedValueSet base: http://hl7.org/fhir/StructureDefinition/Extension version: 0.0.1-snapshot-1 required: [url]