There is still out-of-network healthcare (i.e. specific services or entire healthcare providers not covered by single payer) in many countries with universal healthcare. But it is usually clear which is which.
> There is still out-of-network healthcare in many countries with universal healthcare
Can you provide links?
I've personally used the healthcare systems in Australia and Canada for two decades each, and also for a short time in the UK. I've never heard of this.
Link: https://www.reginamaria.ro/ - one of the biggest networks in the country. I have to use it for most of the regular stuff and I pay a subscription plus out of pocket for some consultations. This is on top of paying 10% of my gross income to socialized healthcare money stealing scheme.
The treatment provided will be similar to the NHS, but with less waiting (if relevant) and nicer facilities, such as private rooms rather than shared wards in hospital.
There is a small handful of clinics in Japan that do not accept the universal health insurance, such as specialist ones targeting English-speaking expats.
Can you provide links?
I've personally used the healthcare systems in Australia and Canada for two decades each, and also for a short time in the UK. I've never heard of this.