Release 5 Ballot

This page is part of the FHIR Specification (v5.0.0-ballot: FHIR R5 Ballot Preview). The current version which supercedes this version is 5.0.0. For a full list of available versions, see the Directory of published versions

Extension: _datatype

FHIR Infrastructure Work Group

Maturity Level: 1

Informative

Use Context: Any

Summary

Defining URL: http://hl7.org/fhir/StructureDefinition/_datatype

Version: 5.0.0-ballot

Name: _datatype

Title: null

Modifier: This extension is not a modifier extension

Status: draft

Definition: Used when the actual type is not allowed by the definition of the element. In general, this should only arise when wrangling between versions using cross-version extensions - see [Cross Version Extensions](versions.html#extensions).

Committee: FHIR Infrastructure Work Group

Status: draft. Extension maintained by: Health Level Seven International (FHIR Infrastructure)

Used when the actual type is not allowed by the definition of the element. In general, this should only arise when wrangling between versions using cross-version extensions - see Cross Version Extensions.

Context of Use: Use on Element ID Base

Summary

Name	Flags	Card.	Type	Description & Constraints
_datatype		0..1	string	URL = http://hl7.org/fhir/StructureDefinition/_datatype _datatype: Used when the actual type is not allowed by the definition of the element. In general, this should only arise when wrangling between versions using cross-version extensions - see Cross Version Extensions. Use on Element ID Base
Documentation for this format

Full Structure

Name	Card.	Type	Description & Constraints
extension	0..1	Extension	URL = http://hl7.org/fhir/StructureDefinition/_datatype _datatype: Used when the actual type is not allowed by the definition of the element. In general, this should only arise when wrangling between versions using cross-version extensions - see Cross Version Extensions. Use on Element ID Base
extension	0..0
url	1..1	uri	"http://hl7.org/fhir/StructureDefinition/_datatype"
value[x]	1..1	string	Value of extension
Documentation for this format

XML Template

<!-- _datatype -->

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/_datatype" >
  <!-- from Element: extension -->
 <valueString value="[string]"/><!-- I 1..1 Value of extension -->
</extension>

JSON Template

{ // _datatype
  // from Element: extension
    "extension" : [ //  sliced by value:url  in the specified order, Open ]
  // extension: Extension: Prohibited
    "url" : "http://hl7.org/fhir/StructureDefinition/_datatype", // R! 
    "valueString" : "<string>" // I R! Value of extension
  }

Summary

Name	Flags	Card.	Type	Description & Constraints
_datatype		0..1	string	URL = http://hl7.org/fhir/StructureDefinition/_datatype _datatype: Used when the actual type is not allowed by the definition of the element. In general, this should only arise when wrangling between versions using cross-version extensions - see Cross Version Extensions. Use on Element ID Base
Documentation for this format

Full Structure

Name	Card.	Type	Description & Constraints
extension	0..1	Extension	URL = http://hl7.org/fhir/StructureDefinition/_datatype _datatype: Used when the actual type is not allowed by the definition of the element. In general, this should only arise when wrangling between versions using cross-version extensions - see Cross Version Extensions. Use on Element ID Base
extension	0..0
url	1..1	uri	"http://hl7.org/fhir/StructureDefinition/_datatype"
value[x]	1..1	string	Value of extension
Documentation for this format

XML Template

<!-- _datatype -->

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/_datatype" >
  <!-- from Element: extension -->
 <valueString value="[string]"/><!-- I 1..1 Value of extension -->
</extension>

JSON Template

{ // _datatype
  // from Element: extension
    "extension" : [ //  sliced by value:url  in the specified order, Open ]
  // extension: Extension: Prohibited
    "url" : "http://hl7.org/fhir/StructureDefinition/_datatype", // R! 
    "valueString" : "<string>" // I 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)

Search

No Search Extensions defined for this resource

Examples of this extension

No examples found.