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This seems to be a summary

Medicare Coverage

Sponsored Employees, directly recruited from a country with which Australia has a Reciprocal Health Care Agreement (RHCA), may be eligible for limited Medicare benefits, though only for “immediately necessary treatment”. For taxation purposes, these visa holders are treated in the same manner as Australian citizens and are subject to the same tax payments (Medicare Levy) and penalties (MLS) as Australian citizens. RHCA Agreements are currently in place with the following countries:
United Kingdom
New Zealand
Sweden
Finland
Netherlands
Malta
Italy
Norway
Ireland (Hospital only)

Treatment under the RHCA is limited, as indicated above, to immediately necessary treatment which occurred after arrival in Australia (ie. pre-existing conditions are not covered), and includes the following:
subsidised out-of-hospital medical treatment (visiting a doctor) under Medicare
subsidised medicines under the Pharmaceutical Benefits Scheme which arose after arrival in Australia, and
treatment in a public hospital.

Examples of the sort of costs which the RHCA’s do NOT cover include:
Treatment as a private patient (patients opting to be treated as private patients will forego Medicare benefits)
Ambulance coverDental care
Spectacles and hearing aids
Surgical supplies
Prostheses (excluding artificial limbs and surgically implanted prostheses);
Medical evacuation to home country
Funerals
Elective treatment
Treatment that has been pre-arranged before arrival in Australia

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