Release 5

This page is part of the FHIR Specification (v5.0.0: R5 - STU). This is the current published version in it's permanent home (it will always be available at this URL). For a full list of available versions, see the Directory of published versions . Page versions: R5 R4B R4 R3

4.3.2.34 CodeSystem http://hl7.org/fhir/identifier-use

FHIR Infrastructure icon

Work Group

Maturity Level: N

Normative (from v4.0.0)

Use Context: Country: World

Official URL: `http://hl7.org/fhir/identifier-use`				Version: 5.0.0
active as of 2023-03-26				Computable Name: IdentifierUse
Flags: CaseSensitive, Complete. All codes ValueSet: IdentifierUse				OID: 2.16.840.1.113883.4.642.1.58

This Code system is used in the following value sets:

ValueSet: IdentifierUse (Identifies the purpose for this identifier, if known .)

4.3.2.34.1 Definition

Identifies the purpose for this identifier, if known .

4.3.2.34.2 Content

This code system http://hl7.org/fhir/identifier-use defines the following codes:

Code	Display	Definition	Copy
usual	Usual	The identifier recommended for display and use in real-world interactions which should be used when such identifier is different from the "official" identifier.
official	Official	The identifier considered to be most trusted for the identification of this item. Sometimes also known as "primary" and "main". The determination of "official" is subjective and implementation guides often provide additional guidelines for use.
temp	Temp	A temporary identifier.
secondary	Secondary	An identifier that was assigned in secondary use - it serves to identify the object in a relative context, but cannot be consistently assigned to the same object again in a different context.
old	Old	The identifier id no longer considered valid, but may be relevant for search purposes. E.g. Changes to identifier schemes, account merges, etc.

See the full registry of code systems defined as part of FHIR.

Explanation of the columns that may appear on this page:

Level

A few code lists that FHIR defines are hierarchical - each code is assigned a level. See Code System for further information.

Source

The source of the definition of the code (when the value set draws in codes defined elsewhere)

Code

The code (used as the code in the resource instance). If the code is in italics, this indicates that the code is not selectable ('Abstract')

Display

The display (used in the display element of a Coding). If there is no display, implementers should not simply display the code, but map the concept into their application

Definition

An explanation of the meaning of the concept

Comments

Additional notes about how to use the code