Since you are married, why not call the nurses station and ask to speak to the doctor and get the real information?
Perhaps when you are there the doctor can be there to explain matter of act this is caused by alcoholism and the next step is cirrhosis and he will die and he does not have much longer if this continued it will only get worse and ultimately be fatal sooner than later.
No you are in reality and detaching, if he can't see it now no point in talking to someone that deep in denial it will only cause pain.