description: This cross-version extension represents AdverseEvent.eventParticipant from http://hl7.org/fhir/StructureDefinition/AdverseEvent|3.0.2 for use in FHIR R5. package_name: rs/hl7.fhir.uv.xver derivation: constraint name: ext_R3_AdverseEvent_eventParticipant type: Extension elements: value: base: {path: 'Extension.value[x]'} short: Who was involved in the adverse event or the potential adverse event choices: [valueReference] index: 1 valueReference: short: Who was involved in the adverse event or the potential adverse event refers: ['http://hl7.org/fhir/StructureDefinition/Device', 'http://hl7.org/fhir/StructureDefinition/Practitioner'] type: Reference base: {path: 'Extension.value[x]'} choiceOf: value index: 2 url: pattern: {type: uri, value: 'http://hl7.org/fhir/3.0/StructureDefinition/extension-AdverseEvent.eventParticipant'} type: uri index: 3 package_version: r3.r5-0.0.1-snapshot-1 class: extension kind: complex-type url: http://hl7.org/fhir/3.0/StructureDefinition/extension-AdverseEvent.eventParticipant base: http://hl7.org/fhir/StructureDefinition/Extension version: 0.0.1-snapshot-1 required: [url]