description: This cross-version extension represents BiologicallyDerivedProduct.biologicalSourceEvent from http://hl7.org/fhir/StructureDefinition/BiologicallyDerivedProduct|5.0.0 for use in FHIR R4B. package_name: rs/hl7.fhir.uv.xver derivation: constraint name: ext_R5_BDP_bSE type: Extension elements: value: base: {path: 'Extension.value[x]'} short: An identifier that supports traceability to the event during which material in this product from one or more biological entities was obtained or pooled choices: [valueIdentifier] index: 1 valueIdentifier: base: {path: 'Extension.value[x]'} type: Identifier short: An identifier that supports traceability to the event during which material in this product from one or more biological entities was obtained or pooled choiceOf: value index: 2 url: pattern: {type: uri, value: 'http://hl7.org/fhir/5.0/StructureDefinition/extension-BiologicallyDerivedProduct.biologicalSourceEvent'} type: uri index: 3 package_version: r5.r4b-0.0.1-snapshot-1 class: extension kind: complex-type url: http://hl7.org/fhir/5.0/StructureDefinition/extension-BiologicallyDerivedProduct.biologicalSourceEvent base: http://hl7.org/fhir/StructureDefinition/Extension version: 0.0.1-snapshot-1 required: [url]