This page is part of the FHIR Specification (v4.4.0: R5 Preview #2). The current version which supercedes this version is 5.0.0. For a full list of available versions, see the Directory of published versions . Page versions: R4B R4 R3 R2
FHIR Infrastructure Work Group | Maturity Level: 1 | Informative | Use Context: Any |
URL for this extension:
http://hl7.org/fhir/StructureDefinition/elementdefinition-allowedUnits
Status: draft. Extension maintained by: Health Level Seven, Inc. - FHIR Core WG
Identifies the units of measure in which the element should be captured or expressed.
Comment:
Use a value set if more than one unit of measure is possible. Value sets will typically be short enough to display in a drop-down selection list.
Context of Use: Use on Element ID ElementDefinition
Summary
Name | Flags | Card. | Type | Description & Constraints |
---|---|---|---|---|
allowedUnits | 0..1 | CodeableConcept, canonical(ValueSet) | URL = http://hl7.org/fhir/StructureDefinition/elementdefinition-allowedUnits allowedUnits: Identifies the units of measure in which the element should be captured or expressed. Binding: UCUM Codes (required) Use on Element ID ElementDefinition | |
Documentation for this format |
Full Structure
Name | Flags | Card. | Type | Description & Constraints |
---|---|---|---|---|
extension | 0..1 | Extension | URL = http://hl7.org/fhir/StructureDefinition/elementdefinition-allowedUnits allowedUnits: Identifies the units of measure in which the element should be captured or expressed. Use on Element ID ElementDefinition | |
extension | I | 0..0 | ||
url | 1..1 | uri | "http://hl7.org/fhir/StructureDefinition/elementdefinition-allowedUnits" | |
value[x] | I | 1..1 | Value of extension Binding: UCUM Codes (required) | |
valueCodeableConcept | CodeableConcept | |||
valueCanonical | canonical(ValueSet) | |||
Documentation for this format |
XML Template
<!-- allowedUnits --> <extension xmlns="http://hl7.org/fhir" url="http://hl7.org/fhir/StructureDefinition/elementdefinition-allowedUnits" > <!-- from Element: extension --> <value[x]><!-- 1..1 CodeableConcept|canonical Value of extension --></value[x]> </extension>
JSON Template
{ // allowedUnits // from Element: extension "extension" : [ // sliced by value:url in the specified order, Open ] "url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-allowedUnits", // R! // value[x]: Value of extension. One of these 2: "valueCodeableConcept" : { CodeableConcept } // C? R! Value of extension "valueCanonical" : "<canonical>", // C? R! Value of extension }
Summary
Name | Flags | Card. | Type | Description & Constraints |
---|---|---|---|---|
allowedUnits | 0..1 | CodeableConcept, canonical(ValueSet) | URL = http://hl7.org/fhir/StructureDefinition/elementdefinition-allowedUnits allowedUnits: Identifies the units of measure in which the element should be captured or expressed. Binding: UCUM Codes (required) Use on Element ID ElementDefinition | |
Documentation for this format |
Full Structure
Name | Flags | Card. | Type | Description & Constraints |
---|---|---|---|---|
extension | 0..1 | Extension | URL = http://hl7.org/fhir/StructureDefinition/elementdefinition-allowedUnits allowedUnits: Identifies the units of measure in which the element should be captured or expressed. Use on Element ID ElementDefinition | |
extension | I | 0..0 | ||
url | 1..1 | uri | "http://hl7.org/fhir/StructureDefinition/elementdefinition-allowedUnits" | |
value[x] | I | 1..1 | Value of extension Binding: UCUM Codes (required) | |
valueCodeableConcept | CodeableConcept | |||
valueCanonical | canonical(ValueSet) | |||
Documentation for this format |
XML Template
<!-- allowedUnits --> <extension xmlns="http://hl7.org/fhir" url="http://hl7.org/fhir/StructureDefinition/elementdefinition-allowedUnits" > <!-- from Element: extension --> <value[x]><!-- 1..1 CodeableConcept|canonical Value of extension --></value[x]> </extension>
JSON Template
{ // allowedUnits // from Element: extension "extension" : [ // sliced by value:url in the specified order, Open ] "url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-allowedUnits", // R! // value[x]: Value of extension. One of these 2: "valueCodeableConcept" : { CodeableConcept } // C? R! Value of extension "valueCanonical" : "<canonical>", // C? R! Value of extension }
Constraints