Release 4B

This page is part of the FHIR Specification (v4.3.0: R4B - STU). 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

Extension: fhir-type

FHIR Infrastructure Work Group

Maturity Level: 1

Informative

Use Context: Any

URL for this extension:

http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type

Status: draft. Extension maintained by: Health Level Seven, Inc. - [WG Name] WG

The formal FHIR type of a property - used for the value property of a primitive type (for which there is no type in the FHIR typing system), and Element.id and Extension.url.

Comment:

This is in effect, compiler magic for the typing system.

Context of Use: Use on Element ID ElementDefinition.type.code

Summary

Name	Flags	Card.	Type	Description & Constraints
fhir-type		0..1	url	URL = http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type fhir-type: The formal FHIR type of a property - used for the value property of a primitive type (for which there is no type in the FHIR typing system), and Element.id and Extension.url. Use on Element ID ElementDefinition.type.code
Documentation for this format

Full Structure

Name	Card.	Type	Description & Constraints
extension	0..1	Extension	URL = http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type fhir-type: The formal FHIR type of a property - used for the value property of a primitive type (for which there is no type in the FHIR typing system), and Element.id and Extension.url. Use on Element ID ElementDefinition.type.code
extension	0..0
url	1..1	uri	"http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type"
value[x]	1..1	url	Value of extension
Documentation for this format

XML Template

<!-- fhir-type -->

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type" >
  <!-- from Element: extension -->
 <valueUrl value="[url]"/><!--  1..1 Value of extension -->
</extension>

JSON Template

{ // fhir-type
  // from Element: extension
    "extension" : [ //  sliced by value:url  in the specified order, Open ]
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type", // R! 
    "valueUrl" : "<url>" // C? R! Value of extension
  }

Summary

Name	Flags	Card.	Type	Description & Constraints
fhir-type		0..1	url	URL = http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type fhir-type: The formal FHIR type of a property - used for the value property of a primitive type (for which there is no type in the FHIR typing system), and Element.id and Extension.url. Use on Element ID ElementDefinition.type.code
Documentation for this format

Full Structure

Name	Card.	Type	Description & Constraints
extension	0..1	Extension	URL = http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type fhir-type: The formal FHIR type of a property - used for the value property of a primitive type (for which there is no type in the FHIR typing system), and Element.id and Extension.url. Use on Element ID ElementDefinition.type.code
extension	0..0
url	1..1	uri	"http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type"
value[x]	1..1	url	Value of extension
Documentation for this format

XML Template

<!-- fhir-type -->

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type" >
  <!-- from Element: extension -->
 <valueUrl value="[url]"/><!--  1..1 Value of extension -->
</extension>

JSON Template

{ // fhir-type
  // from Element: extension
    "extension" : [ //  sliced by value:url  in the specified order, Open ]
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type", // R! 
    "valueUrl" : "<url>" // C? R! Value of extension
  }

Constraints

ele-1: All FHIR elements must have a @value or children unless an empty Parameters resource (xpath: @value|f:*|h:div|self::f:Parameters)
ext-1: Must have either extensions or value[x], not both (xpath: exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')]))
ele-1: On Extension.extension: All FHIR elements must have a @value or children (xpath on Extension.extension: @value|f:*|h:div)
ext-1: On Extension.extension: Must have either extensions or value[x], not both (xpath on Extension.extension: exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")]))
ele-1: On Extension.value[x]: All FHIR elements must have a @value or children (xpath on Extension.value[x]: @value|f:*|h:div)