description: 'An extension to provide a reason for the surveillance decision: to start or end the surveillance.' package_name: nictiz.fhir.nl.r4.cio derivation: constraint name: ExtSurveillanceDecisionSurveillanceDecision type: Extension elements: url: pattern: {type: Uri, value: 'http://nictiz.nl/fhir/StructureDefinition/ext-SurveillanceDecision.SurveillanceDecision'} index: 0 value: short: SurveillanceDecision choices: [valueCode] index: 2 valueCode: {type: code, short: SurveillanceDecision, choiceOf: value, index: 3} package_version: 1.0.0-beta.3 class: extension kind: complex-type url: http://nictiz.nl/fhir/StructureDefinition/ext-SurveillanceDecision.SurveillanceDecision base: http://hl7.org/fhir/StructureDefinition/Extension version: 1.0.0-beta.3