INZ Operational Manual: Administration, A4.5, A4.10
To get a Resident Visa, you must be unlikely to be a danger to public health, and you must be unlikely to impose significant costs or demands on New Zealand’s health services or special education services. You must also be able to do any work that your particular application is based on or that’s a requirement for the visa.
You don’t have to meet those health requirements if:
you’ve already got a Resident Visa and you’re now applying for a Permanent Resident Visa, or
your previous Resident Visa expired because you left New Zealand after your travel conditions expired or because you were outside New Zealand when the travel conditions expired, and you’re now applying for a new Resident Visa.
INZ Operational Manual: Administration, A4.10
Immigration NZ has identified some specific health conditions as ones that impose significant costs or demands on New Zealand’s health or special education services and that will therefore prevent you getting residence – for example, HIV, Hepatitis B or C, cancers (including melanomas), neurological disorders like multiple sclerosis, heart conditions, and respiratory disease (for example, cystic fibrosis). You can read the full list and the various exceptions in Immigration NZ’s Operational Manual (go to the “Administration” part, at A4.10.1). The Operational Manual also says that their list isn’t exhaustive – so just because you don’t have any of the conditions they list, that doesn’t necessarily mean you’ll meet the health requirements.
You’ll have to provide Immigration New Zealand with a Medical Certificate and a Chest X-ray Certificate (but pregnant women and children under 11 don’t have to provide a Chest X-ray Certificate). The certificates will need to be from one of Immigration New Zealand’s approved “panel physicians”: for more details about these doctors and how to find them: see “Health requirements”, in the section on “Temporary Visas: Working, studying or visiting for a limited time”.