This page is part of the FHIR Specification (v4.5.0: R5 Preview #3). 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

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Extension: fhir-type

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 FHIR type of a property - used on the value property of a primitive type (for which there is no type in the FHIR typing system), and Element.id, Resource.id, and Extension.url. All of these have a non-FHIR type in thir structure definition, and this specifies the applicable FHIR type.

Comment:

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

Context of Use: Use on Element ID ElementDefinition.type

Extension Content

• Summary
• Full Structure
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Summary

Name	Flags	Card.	Type	Description & Constraints
fhir-type		0..1	uri	URL = http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type fhir-type: The FHIR type of a property - used on the value property of a primitive type (for which there is no type in the FHIR typing system), and Element.id, Resource.id, and Extension.url. All of these have a non-FHIR type in thir structure definition, and this specifies the applicable FHIR type. Binding: DataType (required) Use on Element ID ElementDefinition.type
Documentation for this format

Full Structure

Name	Flags	Card.	Type	Description & Constraints
extension		0..1	Extension	URL = http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type fhir-type: The FHIR type of a property - used on the value property of a primitive type (for which there is no type in the FHIR typing system), and Element.id, Resource.id, and Extension.url. All of these have a non-FHIR type in thir structure definition, and this specifies the applicable FHIR type. Use on Element ID ElementDefinition.type
extension	I	0..0
url		1..1	uri	"http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type"
value[x]	I	1..1	uri	Value of extension Binding: DataType (required)
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 -->
 <valueUri value="[uri]"/><!--  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! 
    "valueUri" : "<uri>" // C? R! Value of extension
  }

Summary

Name	Flags	Card.	Type	Description & Constraints
fhir-type		0..1	uri	URL = http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type fhir-type: The FHIR type of a property - used on the value property of a primitive type (for which there is no type in the FHIR typing system), and Element.id, Resource.id, and Extension.url. All of these have a non-FHIR type in thir structure definition, and this specifies the applicable FHIR type. Binding: DataType (required) Use on Element ID ElementDefinition.type
Documentation for this format

Full Structure

Name	Flags	Card.	Type	Description & Constraints
extension		0..1	Extension	URL = http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type fhir-type: The FHIR type of a property - used on the value property of a primitive type (for which there is no type in the FHIR typing system), and Element.id, Resource.id, and Extension.url. All of these have a non-FHIR type in thir structure definition, and this specifies the applicable FHIR type. Use on Element ID ElementDefinition.type
extension	I	0..0
url		1..1	uri	"http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type"
value[x]	I	1..1	uri	Value of extension Binding: DataType (required)
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 -->
 <valueUri value="[uri]"/><!--  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! 
    "valueUri" : "<uri>" // C? R! Value of extension
  }

Constraints

• ele-1: All FHIR elements must have a @value or children (xpath: @value|f:*|h:div)
• 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)