description: Calculated value for a question answer as determined by an evaluated expression. package_name: hl7.fhir.uv.sdc derivation: constraint name: CalculatedExpressionExtension type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-calculatedExpression'} index: 1 value: choices: [valueExpression] index: 3 valueExpression: {type: Expression, choiceOf: value, index: 4} package_version: 4.0.0-ballot extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-calculatedExpression base: http://hl7.org/fhir/StructureDefinition/Extension version: 4.0.0-ballot required: [valueExpression, value]