description: An expression that determines a calculated value. The expression may be simply the name of a expression in a referenced library, or it may be a complete inline expression. package_name: hl7.fhir.uv.extensions.r4b derivation: constraint name: CalculatedValue type: Extension elements: extension: {index: 0} url: pattern: {type: uri, value: 'http://hl7.org/fhir/StructureDefinition/cqf-calculatedValue'} type: uri index: 1 value: choices: [valueExpression] index: 3 valueExpression: {type: Expression, choiceOf: value, index: 4} package_version: 5.3.0-ballot extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/cqf-calculatedValue base: http://hl7.org/fhir/StructureDefinition/Extension version: 5.3.0-ballot required: [value, valueExpression]