The reciprocal health care agreement (RHCA) lets Medicare card-holding Australians access limited medical services. This means Medicare-eligible Australians in New Zealand are covered for in-patient public hospital treatments and accommodation.
But the RHCA won't cover any prescription medicines/supplies, or any other medical treatments you require, including any hospital outpatient treatments and all private hospital services.
The RHCA doesn't cover emergency evacuation and repatriation costs either. New Zealand has many isolated areas, and if you're injured or sick, you might need emergency evacuation to a major hospital.