HL7® FHIR® New Zealand Base Implementation Guide
3.1.0 - Draft

HL7® FHIR® New Zealand Base Implementation Guide, published by HL7 New Zealand. This guide is not an authorized publication; it is the continuous build for version 3.1.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/hl7nz/nzbase/ and changes regularly. See the Directory of published versions

## ValueSet: Valid use values for NHI

Official URL: https://nzhts.digital.health.nz/fhir/ValueSet/nhi-use-code | Version: 1.0.0
Active as of 2026-03-08 | Computable Name: NHIUse

NHI Use codes

References

- NZ Patient

### Logical Definition (CLD)

- Include these codes as defined in `http://hl7.org/fhir/identifier-use` version 📦4.0.1

  Code | Display | Definition
  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.
  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.

### Expansion

Expansion performed internally based on codesystem IdentifierUse v4.0.1 (CodeSystem)

This value set contains 2 concepts

System | Code | Display (en) | Definition | JSON | XML
`http://hl7.org/fhir/identifier-use` | 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. |  |
`http://hl7.org/fhir/identifier-use` | 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. |  |

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. In this scheme, some codes are under other codes, and imply that the code they are under also applies
System | 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)
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