For anyone who does not qualify for the national health insurance plan, private health insurance is highly recommended.
In order to work, study or simply travel, you will always need a good international health insurance with experience to cover you, whatever is the length of your expatriation in Argentina.
Update 16/01/2013
Expatriate health insurance in Argentina
With so much to deal with before leaving your home country, (taxes, moving house, paperwork etc.) the careful planning of your expatriation to Buenos Aires is an essential step. As far as healthcare is concerned, your local social security scheme won’t be accompanying you to your host country and, once abroad, you might be surprised by the care system you find in Argentina So, before leaving, make sure you have appropriate cover!
Designed for either short or long stays, APRIL International’s insurance policies offer protection against any problems that might arise before departure or during your time in Argentina: cancelling your trip, medical expenses following an illness or accident, needing to be repatriated, causing damage to a third party or losing your luggage.