# | Name | Source | Ver | Description | |
1 | Quantity (PS-CA) | ca.infoway.io.psca#1.0.1-alpha3 | R4 | This profile represents the constraint applied to the Quantity data type by the PS-CA project to use UCUM as the code system for units. Informed by the constraints of the [Quantity IPS-UV profile](http://hl7.org/fhir/uv/ips/StructureDefinition-Quantity-uv-ips.html). |
1 | |
Quantity | D |
Quantity.extension | |
Quantity.value | |
Quantity.comparator | |
Quantity.unit | |
Quantity.system | C F |
Quantity.code | C |
Produced 06 Apr 2023