I spent half that time in Critical Care (much of that on a ventilator, a small amount sedated), and most of the rest in a specialist neuro-rehab unit. I would have died otherwise.
Fortunately it cost me nothing - Thank Bevan for the NHS - but if I were in the US I imagine I would be financially crippled!
More likely you just would not have been kept in hospital four months here. Somehow we have the combination of highest cost and also cost-cutting schemes.
To answer your question - $18,000 I guess, if I got lucky and the insurance worked correctly. That’s the alleged max out of pocket for the insurance I pay for at work.
According to https://nchstats.com/average-cost-of-hospital-stays-in-us/ the average cost for inpatient care in the United States is 3,025 dollars.
4 months of 30 days multiplied by 3,025 is equal to 363,000 dollars without insurance.
That is an entirely believable number to me.