This case-insensitive code system https://nzhts.digital.health.nz/ns/organisation-type-code defines the following codes:

Code	Display	Definition
001	District Health Board (DHB)	DHBs provide (or fund the provision of) health and disability services to 20 districts throughout New Zealand.
003	Government Organisations	This includes both national and local government bodies but excludes DHBs.
006	Responsible Authority	Responsible Authorities are Listed in the Health Practitioners Competency Assurance Act 2003.
007	Research Institutions	Research institutions not involved in education.
008	Education Institutions	Education institutions - these may include those involved in research, e.g. universities.
009	Primary Health Organisation (PHO)	PHOs are the local provider organisations through which DHBs implement the Primary Health Care Strategy.
027	Māori Health Providers	Provider organisations that are owned and governed by Māori and provide services primarily, but not exclusively, to Māori.
999	Other