ICD-10-CM > Q00-QA0 > Q38-Q45 > Q44 Q44 Congenital malformations of gallbladder, bile ducts and liver Non-Billable/Non-Specific Codes Q44.0Agenesis, aplasia and hypoplasia of gallbladderQ44.1Other congenital malformations of gallbladderQ44.2Atresia of bile ductsQ44.3Congenital stenosis and stricture of bile ductsQ44.4Choledochal cystQ44.5Other congenital malformations of bile ductsQ44.6Cystic disease of liverQ44.7Other congenital malformations of liverQ44.70Other congenital malformation of liver, unspecifiedQ44.71Alagille syndromeQ44.79Other congenital malformations of liver