description: This cross-version extension represents AdverseEvent.category from http://hl7.org/fhir/StructureDefinition/AdverseEvent|3.0.2 for use in FHIR R5. package_name: hl7.fhir.uv.xver-r3.r5 derivation: constraint name: ext_R3_AdverseEvent_category type: Extension elements: value: base: {path: 'Extension.value[x]'} short: "AE | PAE \rAn adverse event is an event that caused harm to a patient, an adverse reaction is a something that is a subject-specific event that is a result of an exposure to a medication, food, device or environmental substance, a potential adverse event is something that occurred and that could have caused harm to a patient but did not" choices: [valueCode] index: 1 valueCode: base: {path: 'Extension.value[x]'} type: code short: "AE | PAE \rAn adverse event is an event that caused harm to a patient, an adverse reaction is a something that is a subject-specific event that is a result of an exposure to a medication, food, device or environmental substance, a potential adverse event is something that occurred and that could have caused harm to a patient but did not" choiceOf: value index: 2 url: pattern: {type: uri, value: 'http://hl7.org/fhir/3.0/StructureDefinition/extension-AdverseEvent.category'} type: uri index: 3 package_version: 0.0.1-snapshot-1 class: extension kind: complex-type url: http://hl7.org/fhir/3.0/StructureDefinition/extension-AdverseEvent.category base: http://hl7.org/fhir/StructureDefinition/Extension version: 0.0.1-snapshot-1 required: [url]