description: Extension to reference SMART Guidelines task type package_name: smart.who.int.base derivation: constraint name: SGTask type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://smart.who.int/base/StructureDefinition/SGTask'} index: 1 value: choices: [] index: 3 slicing: rules: open ordered: false discriminator: - {path: $this, type: type} min: 1 slices: valueCoding: match: {} schema: choices: [valueCoding] _required: true index: 5 min: 1 max: 1 valueCoding: type: Coding choiceOf: value index: 6 slicing: slices: valueCoding: match: {} schema: {type: Coding, choiceOf: value, _required: true, index: 6} min: 1 max: 1 value[x]: elements: system: pattern: {type: Uri, value: 'http://smart.who.int/base/CodeSystem/SGTasks'} mustSupport: true index: 7 code: {mustSupport: true, index: 8} required: [system, code] package_version: 1.0.0 extensions: {} class: extension kind: complex-type url: http://smart.who.int/base/StructureDefinition/SGTask base: http://hl7.org/fhir/StructureDefinition/Extension version: 1.0.0 required: [valueCoding, value]