Sadly they've added a billing system for 'health tourism'. Before that they didn't ask too many questions just treated people. I guess the billing system pays for itself? Not sure.
Presumably the billers spend a lot of time trying to get money out of insurance companies? We don't have those either..
[We do have private healthcare provides but even they seem much cheaper than the US system]
Edit: Any time the US healthcare system is described on HN it all sounds rather bureaucratic and stressful - as if being sick wasn't bad enough already!