description: An extension to provide the underlying condition and diagnosis of a hypersensitivity/intolerance or reaction. package_name: nictiz.fhir.nl.r4.cio derivation: constraint name: ExtRelationCondition type: Extension elements: url: pattern: {type: Uri, value: 'http://nictiz.nl/fhir/StructureDefinition/ext-RelationCondition'} index: 0 value: short: RelationCondition choices: [valueReference] index: 2 valueReference: type: Reference short: RelationCondition choiceOf: value refers: ['http://nictiz.nl/fhir/StructureDefinition/cio-Condition'] index: 3 package_version: 1.0.0-beta.5 class: extension kind: complex-type url: http://nictiz.nl/fhir/StructureDefinition/ext-RelationCondition base: http://hl7.org/fhir/StructureDefinition/Extension version: 1.0.0-beta.5