Extension: additionalIdentifier

FHIR Infrastructure Work Group

Maturity Level: 1

Trial Use

Use Context: Any

Official URL: `http://hl7.org/fhir/StructureDefinition/additionalIdentifier`				Version: 5.0.0-snapshot3
draft as of 2015-02-28				Computable Name: additionalIdentifier
Flags: Non-Modifier				OID: TBD

Context of Use: Use on Element ID Reference

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.

Comment:

This is used when there is more than one identifier.

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: hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (xpath: extension.exists() != value.exists())
ele-1: On Extension.extension: All FHIR elements must have a @value or children (xpath on Extension.extension: hasValue() or (children().count() > id.count()))
ext-1: On Extension.extension: Must have either extensions or value[x], not both (xpath on Extension.extension: extension.exists() != value.exists())
ele-1: On Extension.value[x]: All FHIR elements must have a @value or children (xpath on Extension.value[x]: hasValue() or (children().count() > id.count()))

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Examples of this extension

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