This page is part of the FHIR Core Extensions Registry (v0.1.0: Release 1.0 Draft) based on FHIR (HL7® FHIR® Standard) v5.0.0. The current version which supersedes this version is 5.2.0. For a full list of available versions, see the Directory of published versions

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Extension: additional identifier

Official URL: http://hl7.org/fhir/StructureDefinition/additionalIdentifier				Version: 0.1.0
Standards status: Trial-use			Maturity Level: 1	Computable Name: 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.

Context of Use

This extension may be used on the following element(s):

• Element ID Reference

Usage info

Usage:

• This Extension is not used by any profiles in this Implementation Guide

Formal Views of Extension Content

Description of Profiles, Differentials, Snapshots, and how the XML and JSON presentations work.

 

Other representations of profile: CSV, Excel, Schematron

Constraints

Id	Grade	Path(s)	Details	Requirements
ele-1	error	**ALL** elements	All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count())

Search Parameters for this Extension

(none found)

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