My dad is an alcoholic. He hasn't had a drink for 20 Ish years - not from choice but because he is now bedridden due to the physical effects and nobody will supply him.
He has wrecked through drink -
Kidneys, liver, heart, gall bladder, stomach and bowels, pancreas, brain (alcohol dementia) he is in physical agony daily 24 hours. He has bed sores, is deathly pale all the time, can barely see, speak or hear.
So yea, definitely not just liver.
He has also alienated everyone who ever cared for him. To say his relationship with my mother who is now his carer, is dysfunctional is a HUGE understatement. I am very low contact with him, his siblings have nothing to do with him at all.
It is your dh's choice to drink or work on quitting. Be aware of how manipulative they (addicts) can be.
My dad quit (supposedly) several times, aa meetings, sponsors even taking Antabuse - except he wasn't, he was in the pub when he was supposedly at aa, swapped his Antabuse for sugar pills, hid the booze etc.
He'd lose the temper with Drs who could tell from tests etc that he was still drinking. Wouldn't listen, wouldn't take meds to treat the effects because they couldn't be taken with alcohol...
Almost 40 years of this I've seen.
The only person you can protect is yourself op. And to be honest I'm more than a bit angry you've not reported him for drink driving which I am sure your dh will have done. I've a friend lost her baby to a drink driver and 2 others permanently disabled by them. He shouldn't be driving at all he's not fit to.