The Universal Declaration of Human Rights, adopted by the United Nations in 1948, proclaimed that “everyone has the right to a standard of living adequate for the health and well-being of oneself and one’s family, including food, clothing, housing, and medical care.”
In 1943, President Franklin D. Roosevelt proposed a ‘Second Bill of Rights’ for Americans, declaring ‘freedom from want’ to be one of four essential liberties necessary for human security. Roosevelt’s definition of freedom included “the right to adequate medical care and the opportunity to achieve and enjoy good health.” http://www.nhchc.org/Advocacy/RighttoHealthinAmerica.pdf
This is also a good read: http://civilliberty.about.com/od/equalrights/f/Health-Care-H...
Note that there is no mention of adequate care only for those that can afford it.