description: An extension to capture the procedure date was last updated. package_name: fhir.r4.wales.test derivation: constraint name: ExtensionDataStandardsWalesDateProcedureLastUpdated type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'https://fhir.nhs.wales/StructureDefinition/Extension-DataStandardsWales-DateProcedureLastUpdated'} index: 1 value: choices: [valueDateTime] index: 3 valueDateTime: {type: dateTime, choiceOf: value, index: 4} package_version: 2.3.0 extensions: {} class: extension kind: complex-type url: https://fhir.nhs.wales/StructureDefinition/Extension-DataStandardsWales-DateProcedureLastUpdated base: http://hl7.org/fhir/StructureDefinition/Extension version: 0.1.0