Hi Nicke. Thanks for your query. Read the history about your son who is 13 years old and understood the problems. Hisotry gall bladder removal for multiple stones, reappearance of the similar pain with increased bilirubin more than 3 and ERCP and some procedure noted. This is must have been Sphicterotomy and removal of the common bile duct stones. Since the bilirubin is remaining high there is a chance of injury to the common bile duct or retained stones or cholangitis and so on. I would advise further investigations and getting to the final diagnosis. Full liver function tests along with kidney function tests, Amylase and Lipase. CT scan and MRCP of the abdomen to see in details the liver, bile ducts and most important to see any problem with the pancreas. Further treatment depends upon the final diagnosis and may be some surgical intervention if needed.