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Extension Units to use for measured value - Definition

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.

Context of Use: Use on data type: ElementDefinition

usage info: insert a list of places where this extension is used

Extension Content

Structure

Name Flags Card. Type Description & Constraints doco
. . extension Extension URL = http://hl7.org/fhir/StructureDefinition/elementdefinition-allowedUnits
Units to use for measured value: Identifies the units of measure in which the element should be captured or expressed.
Use on data type: ElementDefinition
. . . extension 0..* Extension Additional Content defined by implementations
. . . url 1..1 uri identifies the meaning of the extension
Fixed Value: http://hl7.org/fhir/StructureDefinition/elementdefinition-allowedUnits
. . . value[x] 0..1 CodeableConcept , ValueSet Value of extension
Binding: Units ( extensible )

XML Template 

<!-- Units to use for measured value -->doco

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/elementdefinition-allowedUnits" >
  <!-- from Element: extension -->
 <value[x] ><!-- 0..1 CodeableConcept|Reference Value of extension
</extension>

JSON Template 

{ // Units to use for measured value
  // from Element: extension
    "url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-allowedUnits", // R! 
// value[x]: Value of extension. One of these 2:
    "valueCodeableConcept" : { CodeableConcept } //Value of extension
    "valueReference" : { Reference(http://hl7.org/fhir/StructureDefinition/ValueSet) }, //Value of extension
  }

Structure

Name Flags Card. Type Description & Constraints doco
. . extension Extension URL = http://hl7.org/fhir/StructureDefinition/elementdefinition-allowedUnits
Units to use for measured value: Identifies the units of measure in which the element should be captured or expressed.
Use on data type: ElementDefinition
. . . extension 0..* Extension Additional Content defined by implementations
. . . url 1..1 uri identifies the meaning of the extension
Fixed Value: http://hl7.org/fhir/StructureDefinition/elementdefinition-allowedUnits
. . . value[x] 0..1 CodeableConcept , ValueSet Value of extension
Binding: Units ( extensible )

XML Template 

<!-- Units to use for measured value -->doco

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/elementdefinition-allowedUnits" >
  <!-- from Element: extension -->
 <value[x] ><!-- 0..1 CodeableConcept|Reference Value of extension
</extension>

JSON Template

to do

 

Terminology Bindings

Path Definition Type Reference
http://hl7.org/fhir/StructureDefinition/elementdefinition-allowedUnits Units of measure allowed for an element Extensible http://hl7.org/fhir/vs/units