Let just summarise who is free, and what is not free, for a visitor to the UK.
Let's assume someone collapses in the street. Someone dials 999! :-
- Treatment by the paramedics at the scene is free
- Transport to the A&E department is free
- Treatment in the A&E department is free
- But then if they need to be transferred to a Ward or indeed to a theatre, it is not free!
In other words, just when it starts to get very expensive, the need to pay starts!
Accordingly anyone coming to the UK as a visitor really does not to ensure that they have adequate medical insurance cover.