description: Points to the Observation, AllergyIntolerance or other record that provides additional supporting information about this flag. Note that This extension will be replaced by Flag.supportingInfo in the FHIR R6 release. package_name: hl7.fhir.uv.extensions.r5 derivation: constraint name: FlagDetail type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/flag-detail'} index: 1 value: choices: [valueReference] index: 3 valueReference: type: Reference choiceOf: value refers: ['http://hl7.org/fhir/StructureDefinition/Resource'] index: 4 package_version: 5.3.0-ballot-tc1 extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/flag-detail base: http://hl7.org/fhir/StructureDefinition/Extension version: 5.3.0-ballot-tc1 required: [valueReference, value]