Enlightened Western thought has concluded that human beings are endowed with certain rights via natural law. Governments are constituted to guarantee and protect these rights. Many are specifically listed to avoid ambiguity; such as the right to free speech, petition the government, trial by jury, being armed, etc. These are rights because people possess them without cost or obligation on themselves or others.
Health care, like housing, vehicles, college education and cellphones, are commodities. They maybe be supplied at minimal or no cost, but they are not free. Governments must forcibly extract wealth from some portion of the population and give it to others to supply these commodities. To describe merchandise as a fundamental right obscures the definition of both and can only work until the supplying portion drops below 50 percent of the population.