About this item

Issue date:
29 March 2019
Corporate Authors:
Health Information Standards Organisation (HISO), Manatū Hauora - Ministry of Health
Document date:
29 March 2019
Mental health
Copyright status:

Copyright Held by Non-Crown Party

978-1-98-850289-2 (online)


The PRIMHD Standard comprises the following three documents.

These documents should be read together. Their separation is solely to simplify the structure of the standard for ease of use. The standards are designed to promote interoperability of information systems within the health and disability sector.

Data Processes Standard

This document defines the common set of codes to be used for each data element of the Integrated Mental Health Collection (PRIMHD) data set that requires coding.

The adoption of a common code set for the health sector will reduce the need for complex interface programmes to translate or manipulate data being exchanged. It will also contribute towards creating a common understanding of data, thus allowing better analysis and interpretation.

Most codes fall into one of two categories:

Demographic codes

These are codes or values that are used throughout the health sector, such as codes for ‘Title’ (Mr, Mrs, etc or organisation name, etc). These need to be used consistently.

Speciality specific codes

These are specific to mental health and addiction services, eg, HoNOS.

More information

Please see the PRIMHD section for the latest file specification and requirements.