But really it all depends, as most (I think all) country's with national healthcare have many procedures that aren't covered (like cosmetics, typically). So we come back to what is and isn't elective. And with that, we come back to iwakar's questions I'm unfortunately didn't answer, and that is, what it's and isn't a disability? We can keep breaking this down into what is and isn't debilitating, dysfuncitonal, or physically endangering.
I wouldn't advocate boundless healthcare, but the USA can do something much more generous (and public) than it currently is.