# | Name | Source | Ver | Description | |
1 | Ratio (PS-CA) | ca.infoway.io.psca#1.0.1-alpha3 | R4 | 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). |
1 | |
Ratio | |
Ratio.extension | |
Ratio.numerator | |
Ratio.denominator |
Produced 06 Apr 2023