description: Extension for capturing the adverse drug reaction alert indicator. package_name: synapxe.sgcdi derivation: constraint name: ADRAlertIndicator type: Extension elements: url: pattern: {type: Uri, value: 'https://fhir.synapxe.sg/StructureDefinition/ext-ADRAlertIndicator'} index: 0 value: choices: [valueCodeableConcept] index: 2 valueCodeableConcept: {type: CodeableConcept, choiceOf: value, index: 3} value[x]: elements: coding: elements: system: {index: 4} package_version: 1.2.3 class: extension kind: complex-type url: https://fhir.synapxe.sg/StructureDefinition/ext-ADRAlertIndicator base: http://hl7.org/fhir/StructureDefinition/Extension version: 1.2.3 required: [value, valueCodeableConcept]