description: A reference to a Condition, Observation, FamilyMemberHistory, or AllergyIntolerance that is the actual problem. package_name: fhir.r4.ukcore.stu3.currentbuild derivation: constraint name: ExtensionUKCoreActualProblem type: Extension elements: url: pattern: {type: uri, value: 'https://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-ActualProblem'} type: uri index: 0 value: short: A reference to a resource that is the actual problem. choices: [valueReference] index: 2 valueReference: type: Reference short: A reference to a resource that is the actual problem. choiceOf: value refers: ['https://fhir.hl7.org.uk/StructureDefinition/UKCore-AllergyIntolerance', 'https://fhir.hl7.org.uk/StructureDefinition/UKCore-Condition', 'https://fhir.hl7.org.uk/StructureDefinition/UKCore-FamilyMemberHistory', 'https://fhir.hl7.org.uk/StructureDefinition/UKCore-Observation'] index: 3 value[x]: elements: identifier: elements: assigner: type: Reference refers: ['https://fhir.hl7.org.uk/StructureDefinition/UKCore-Organization'] index: 4 package_version: 0.0.6-pre-release class: extension kind: complex-type url: https://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-ActualProblem base: http://hl7.org/fhir/StructureDefinition/Extension version: 1.2.0 required: [value, valueReference]