description: Enhanced quantity data type that supports an approximation indicator. package_name: rs/NHSD.Assets.STU3 derivation: constraint name: CareConnect-Quantity-1 type: Quantity elements: extension: index: 0 slicing: rules: open discriminator: - {path: url, type: value} min: null slices: valueApproximation: match: {url: null} schema: {type: Extension, short: Value Approximation, url: h, index: 1} max: 1 package_version: 1.2.0 extensions: valueApproximation: {url: h, max: 1, type: Extension, short: Value Approximation, index: 1} class: complex-type kind: complex-type url: https://fhir.hl7.org.uk/STU3/StructureDefinition/CareConnect-Quantity-1 base: http://hl7.org/fhir/StructureDefinition/Quantity version: 1.0.0