description: When the artifact was approved by publisher. package_name: hl7.fhir.uv.extensions derivation: constraint name: ArtifactApprovalDate type: Extension elements: url: type: uri pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/artifact-approvalDate'} index: 0 value: choices: [valueDate] index: 2 valueDate: {type: date, choiceOf: value, index: 3} package_version: 5.1.0-snapshot1 class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/artifact-approvalDate base: http://hl7.org/fhir/StructureDefinition/Extension version: 5.1.0-snapshot1