description: Ratio data type, constrained to use UCUM as the code system for units. package_name: hl7.fhir.uv.ips derivation: constraint name: RatioIPS type: Ratio elements: numerator: {type: Quantity, mustSupport: true, index: 0} denominator: {type: Quantity, mustSupport: true, index: 1} package_version: 1.0.0 class: complex-type kind: complex-type url: http://hl7.org/fhir/uv/ips/StructureDefinition/Ratio-uv-ips base: http://hl7.org/fhir/StructureDefinition/Ratio version: 1.0.0