Coding him will only prolong the inevitable. It will not fix his liver or the many complications that liver failure is now heaping upon his body. Allow him to die as peacefully as possible, as this may be the only dignity he has left. I'm an ICU nurse......I have seen many, many deaths - - and I give you this advice simply because that's what I would do if it were my family and that's what I would want done for me in the same situation.