Health PEI coverage outside Canada can only go so far; you need to buy additional Prince Edward Island travel insurance or private health insurance to take care of services not covered by Health PEI.
You can get more information about the type of insurance available to you when you travel outside Canada from the Canadian Life and Health Insurance Association (CLHIA). Call CLHIA.
Toll Free: 1-888-295-8112
In Toronto: 416-777-9002