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/daniel-thomson/nzbase/ and changes regularly. See the Directory of published versions

## ValueSet: Datum code

Official URL: https://nzhts.digital.health.nz/fhir/ValueSet/nz-datum-code | Version: 1.0.0
Active as of 2026-03-12 | Computable Name: DatumCode

Datum codes used

References

- NZ Geocode

### Logical Definition (CLD)

- Include all codes defined in `https://standards.digital.health.nz/ns/nz-datum-code` version 📦1.0.0

### Expansion

Expansion performed internally based on codesystem Datum codes v1.0.0 (CodeSystem)

This value set contains 2 concepts

System | Code | Display (en) | Definition | JSON | XML
`https://standards.digital.health.nz/ns/nz-datum-code` | WGS84 | WGS84 | global datum, used by google maps |  |
`https://standards.digital.health.nz/ns/nz-datum-code` | NZGD2000 | NZGD2000 | Nz official datum, used by MoH address service |  |

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