I think it's pretty well known Scott's coroners report stated "death by misadventure due to liver failure".And what is it you've read?
Liver failure is a progressive disease most often brought about from prolonged and acute alcohol abuse.
But yes, those reports are disputed by those who knew him. Most preferring to focus on his life than the cause of his death.
This article is worth a read..
Bon Scott - The Man Behind The Myth
Nearly four decades after the death of AC/DC’s singer, we look at the greatest rock’n’roll frontman of them all
www.loudersound.com