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: additionalIdentifier

FHIR Infrastructure Work Group

Maturity Level: 1

Informative

Use Context: Any

Summary

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

Version: 5.0.0-ballot

Name: additionalIdentifier

Title: null

Modifier: This extension is not a modifier extension

Status: draft

Definition: An additional identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

Committee: FHIR Infrastructure Work Group

Status: draft. Extension maintained by: Health Level Seven, Inc. - FHIR Core WG

An additional identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

Comment:

This is used when there is more than one identifier.

Context of Use: Use on Element ID Reference

Summary

Name	Flags	Card.	Type	Description & Constraints
additionalIdentifier		0..*	Identifier	URL = http://hl7.org/fhir/StructureDefinition/additionalIdentifier additionalIdentifier: An additional identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. Use on Element ID Reference
Documentation for this format

Full Structure

Name	Card.	Type	Description & Constraints
extension	0..*	Extension	URL = http://hl7.org/fhir/StructureDefinition/additionalIdentifier additionalIdentifier: An additional identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. Use on Element ID Reference
extension	0..0
url	1..1	uri	"http://hl7.org/fhir/StructureDefinition/additionalIdentifier"
value[x]	1..1	Identifier	Value of extension
Documentation for this format

XML Template

<!-- additionalIdentifier -->

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/additionalIdentifier" >
  <!-- from Element: extension -->
 <valueIdentifier><!-- I 1..1 Identifier Value of extension --></valueIdentifier>
</extension>

JSON Template

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

Summary

Name	Flags	Card.	Type	Description & Constraints
additionalIdentifier		0..*	Identifier	URL = http://hl7.org/fhir/StructureDefinition/additionalIdentifier additionalIdentifier: An additional identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. Use on Element ID Reference
Documentation for this format

Full Structure

Name	Card.	Type	Description & Constraints
extension	0..*	Extension	URL = http://hl7.org/fhir/StructureDefinition/additionalIdentifier additionalIdentifier: An additional identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. Use on Element ID Reference
extension	0..0
url	1..1	uri	"http://hl7.org/fhir/StructureDefinition/additionalIdentifier"
value[x]	1..1	Identifier	Value of extension
Documentation for this format

XML Template

<!-- additionalIdentifier -->

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/additionalIdentifier" >
  <!-- from Element: extension -->
 <valueIdentifier><!-- I 1..1 Identifier Value of extension --></valueIdentifier>
</extension>

JSON Template

{ // additionalIdentifier
  // from Element: extension
    "extension" : [ //  sliced by value:url  in the specified order, Open ]
  // extension: Extension: Prohibited
    "url" : "http://hl7.org/fhir/StructureDefinition/additionalIdentifier", // R! 
    "valueIdentifier" : { Identifier } // 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

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Examples of this extension

No examples found.