description: This cross-version extension represents DeviceDefinition.conformsTo.source from http://hl7.org/fhir/StructureDefinition/DeviceDefinition|5.0.0 for use in FHIR R4. package_name: hl7.fhir.uv.xver-r5.r4.r4 derivation: constraint name: Ext_R5_DeviceDefinition_co_source type: Extension elements: url: base: {max: '1', min: 1, path: Extension.url} pattern: {type: Uri, value: 'http://hl7.org/fhir/5.0/StructureDefinition/extension-DeviceDefinition.conformsTo.source'} index: 0 value: base: {max: '1', min: 0, path: 'Extension.value[x]'} short: Standard, regulation, certification, or guidance website, document, or other publication, or similar, supporting the conformance choices: [valueRelatedArtifact] index: 2 valueRelatedArtifact: base: {max: '1', min: 0, path: 'Extension.value[x]'} type: RelatedArtifact short: Standard, regulation, certification, or guidance website, document, or other publication, or similar, supporting the conformance choiceOf: value index: 3 package_version: 0.0.1-snapshot-2 class: extension kind: complex-type url: http://hl7.org/fhir/5.0/StructureDefinition/extension-DeviceDefinition.conformsTo.source base: http://hl7.org/fhir/StructureDefinition/Extension|4.0.1 version: 0.0.1-snapshot-2 required: [url]