description: The Patient's age when the diagnosis of colorectal, breast, lung or prostate cancer was given package_name: incisive.fhir derivation: constraint name: AgeAtDiagnosis type: Extension elements: url: pattern: {type: Uri, value: 'https://simplifier.net/INCISIVE/StructureDefinition/AgeAtDiagnosis'} index: 0 value: mustSupport: true choices: [valueAge] index: 2 valueAge: {type: Age, mustSupport: true, choiceOf: value, index: 3} value[x]: elements: value: {index: 4} required: [value] package_version: 1.0.1-preview class: extension kind: complex-type url: https://simplifier.net/INCISIVE/StructureDefinition/AgeAtDiagnosis base: http://hl7.org/fhir/StructureDefinition/Extension version: '20230711' required: [valueAge, value]