FHIR General Extensions IG
0.1.0 - Working Copy International flag

This page is part of the FHIR Core Extensions Registry (v0.1.0: Releases Draft) based on FHIR v5.0.0. . For a full list of available versions, see the Directory of published versions

Extension: Allowed Units

Official URL: http://hl7.org/fhir/StructureDefinition/elementdefinition-allowedUnits Version: 0.1.0
Standards status: Trial-use Maturity Level: 1 Computable Name: AllowedUnits

Identifies the units of measure in which the element should be captured or expressed.

Context of Use

This extension may be used on the following element(s):

  • Element ID ElementDefinition

Usage info

Usage:

Formal Views of Extension Content

Description of Profiles, Differentials, Snapshots, and how the XML and JSON presentations work.

This structure is derived from Extension

Summary

Mandatory: 1 element
Fixed Value: 1 element
Prohibited: 1 element

Maturity: 1

This structure is derived from Extension

NameFlagsCard.TypeDescription & Constraintsdoco
.. Extension 0..1ExtensionUnits to use for measured value
... extension 0..0
... url 1..1uri"http://hl7.org/fhir/StructureDefinition/elementdefinition-allowedUnits"
... value[x] 1..1Value of extension
Binding: UCUMCodes (required)
.... valueCodeableConceptCodeableConcept
.... valueCanonicalcanonical(ValueSet)

doco Documentation for this format
NameFlagsCard.TypeDescription & Constraintsdoco
.. Extension 0..1ExtensionUnits to use for measured value
... id 0..1idUnique id for inter-element referencing
... extension 0..0
... url 1..1uri"http://hl7.org/fhir/StructureDefinition/elementdefinition-allowedUnits"
.... valueCodeableConceptCodeableConcept
.... valueCanonicalcanonical(ValueSet)

doco Documentation for this format

This structure is derived from Extension

Summary

Mandatory: 1 element
Fixed Value: 1 element
Prohibited: 1 element

Maturity: 1

Differential View

This structure is derived from Extension

NameFlagsCard.TypeDescription & Constraintsdoco
.. Extension 0..1ExtensionUnits to use for measured value
... extension 0..0
... url 1..1uri"http://hl7.org/fhir/StructureDefinition/elementdefinition-allowedUnits"
... value[x] 1..1Value of extension
Binding: UCUMCodes (required)
.... valueCodeableConceptCodeableConcept
.... valueCanonicalcanonical(ValueSet)

doco Documentation for this format

Snapshot View

NameFlagsCard.TypeDescription & Constraintsdoco
.. Extension 0..1ExtensionUnits to use for measured value
... id 0..1idUnique id for inter-element referencing
... extension 0..0
... url 1..1uri"http://hl7.org/fhir/StructureDefinition/elementdefinition-allowedUnits"
.... valueCodeableConceptCodeableConcept
.... valueCanonicalcanonical(ValueSet)

doco Documentation for this format

 

Other representations of profile: CSV, Excel, Schematron

Terminology Bindings

PathConformanceValueSet
Extension.value[x]requiredUCUMCodes (a valid code from UCUM)

Constraints

IdGradePath(s)DetailsRequirements
ele-1error**ALL** elementsAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())

Search Parameters for this Extension

(none found)

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