description: An extension to support recording of details of any adverse reaction to any anaesthetic agents including local anaesthesia and problematic intubation, transfusion reaction, etc. package_name: fhir.r4.ukcore.stu3.currentbuild derivation: constraint name: ExtensionUKCoreAnaestheticIssues type: Extension elements: url: pattern: {type: uri, value: 'https://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-AnaestheticIssues'} type: uri index: 0 value: short: SNOMED CT Concept or a link to the Condition resource choices: [valueCodeableConcept, valueReference] index: 2 valueCodeableConcept: {type: CodeableConcept, short: SNOMED CT Concept or a link to the Condition resource, choiceOf: value, index: 3} valueReference: type: Reference short: SNOMED CT Concept or a link to the Condition resource choiceOf: value refers: ['http://hl7.org/fhir/StructureDefinition/Condition'] index: 4 package_version: 0.0.16-pre-release class: extension kind: complex-type url: https://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-AnaestheticIssues base: http://hl7.org/fhir/StructureDefinition/Extension version: 2.3.0 required: [value, valueCodeableConcept, valueReference]