<status value="draft" /> <experimental value="false" /> <date value="2023-12-06T00:00:00-08:00" /> <description value="Data type profile SimpleQuantity constrained to use UCUM as the code system for units" /> <purpose value="This profile of the SimpleQuantity data type profile imposes the usage of the UCUM code system for units" /> <copyright value="Copyright © 2024+ Canada Health Infoway. All rights reserved. [Terms of Use and License Agreements](https://ic.infoway-inforoute.ca/en/about/tou). [Privacy Policy](https://www.infoway-inforoute.ca/en/legal/privacy-policy)." /> <fhirVersion value="4.0.1" /> <kind value="complex-type" /> <abstract value="false" /> <type value="Quantity" /> <baseDefinition value="http://hl7.org/fhir/StructureDefinition/SimpleQuantity" /> <derivation value="constraint" /> <differential> <element id="Quantity"> <path value="Quantity" /> <short value="A measured amount using UCUM" /> <definition value="A measured amount (or an amount that can potentially be measured). Note that measured amounts include amounts that are not precisely quantified, including amounts involving arbitrary units and floating currencies. This profile imposes that the code system for units be UCUM." /> </element> <element id="Quantity.system"> <extension url="http://hl7.org/fhir/StructureDefinition/obligation"> <extension url="code"> <valueCode value="SHALL:populate" /> </extension> <extension url="actor"> <valueCanonical value="http://fhir.infoway-inforoute.ca/io/psca/ActorDefinition/producer" /> </extension> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/obligation"> <extension url="code"> <valueCode value="SHALL:no-error" /> </extension> <extension url="actor"> <valueCanonical value="http://fhir.infoway-inforoute.ca/io/psca/ActorDefinition/consumer" /> </extension> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/obligation"> <extension url="code"> <valueCode value="SHALL:handle" /> </extension> <extension url="actor"> <valueCanonical value="http://fhir.infoway-inforoute.ca/io/psca/ActorDefinition/consumer" /> </extension> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/obligation"> <extension url="code"> <valueCode value="SHOULD:display" /> </extension> <extension url="actor"> <valueCanonical value="http://fhir.infoway-inforoute.ca/io/psca/ActorDefinition/consumer" /> </extension> </extension> <path value="Quantity.system" /> <short value="UCUM system for units" /> <min value="1" /> <fixedUri value="http://unitsofmeasure.org" /> <mustSupport value="true" /> </element> <element id="Quantity.code"> <extension url="http://hl7.org/fhir/StructureDefinition/obligation"> <extension url="code"> <valueCode value="SHALL:populate" /> </extension> <extension url="actor"> <valueCanonical value="http://fhir.infoway-inforoute.ca/io/psca/ActorDefinition/producer" /> </extension> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/obligation"> <extension url="code"> <valueCode value="SHALL:no-error" /> </extension> <extension url="actor"> <valueCanonical value="http://fhir.infoway-inforoute.ca/io/psca/ActorDefinition/consumer" /> </extension> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/obligation"> <extension url="code"> <valueCode value="SHALL:handle" /> </extension> <extension url="actor"> <valueCanonical value="http://fhir.infoway-inforoute.ca/io/psca/ActorDefinition/consumer" /> </extension> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/obligation"> <extension url="code"> <valueCode value="SHOULD:display" /> </extension> <extension url="actor"> <valueCanonical value="http://fhir.infoway-inforoute.ca/io/psca/ActorDefinition/consumer" /> </extension> </extension> <path value="Quantity.code" /> <min value="1" /> <mustSupport value="true" /> </element> </differential> </StructureDefinition>