description: Ratio data type, constrained to use UCUM as a codesystem. package_name: hl7.fhir.uv.ips derivation: constraint name: RatioUvIps type: Ratio elements: numerator: mustSupport: true index: 0 elements: system: pattern: {type: Uri, value: 'http://unitsofmeasure.org'} mustSupport: true index: 1 code: {mustSupport: true, index: 2} required: [system, code] denominator: mustSupport: true index: 3 elements: system: pattern: {type: Uri, value: 'http://unitsofmeasure.org'} mustSupport: true index: 4 code: {mustSupport: true, index: 5} required: [system, code] package_version: 0.3.0 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: 0.3.0