Pay or die.
For the majority of merchandise, the buyer has an option whether to make the transaction or not. With medical health care it's no longer the case.
Therefore, this cannot possibly be a free market. Moreover, by applying free market rules to healthcare, we get the degenerate system that we have today. How is it possible that even the simplest surgery (e.g. appendix removal) can be in the range of tens of thousands ? Well, the "use value" is almost infinite - if the appendix explodes and it's not dealt with, death is around the corner ...
I'm actually a staunch supporter of the freemarket - but I don't think it should be applied to everything.