description: This profile represents the constraint applied to the Ratio data type by the PS-CA project to use UCUM as the code system for units in a way that is informed by the constraints of the [Ratio IPS-UV profile](http://hl7.org/fhir/uv/ips/StructureDefinition-Ratio-uv-ips.html).
package_name: ca.infoway.io.psca
derivation: constraint
name: RatioPSCA
type: Ratio
elements:
  numerator: {type: Quantity, mustSupport: true, index: 0}
  denominator: {type: Quantity, mustSupport: true, index: 1}
package_version: 0.3.2
class: complex-type
kind: complex-type
url: http://fhir.infoway-inforoute.ca/io/psca/StructureDefinition/Ratio-ca-ps
base: http://hl7.org/fhir/StructureDefinition/Ratio
version: 0.3.0