Q44.5 Other congenital malformations of bile ducts

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis. Exempt from present-on-admission (POA) reporting.

Applicable to

• Accessory hepatic duct
• Biliary duct duplication
• Congenital malformation of bile duct NOS
• Cystic duct duplication

MS-DRG index

Defines the logic of DRG(s) 441-443 in MDC 07.

Approximate ICD-9-CM (GEMs)

• 751.60 Unspecified anomaly of gallbladder, bile ducts, and liver (approximate)
• 751.69 Other anomalies of gallbladder, bile ducts, and liver (approximate)

Diagnosis Index entries for Q44.5

• Aberrant (congenital) › hepatic duct
• Absence (of) (organ or part) (complete or partial) › bile, biliary duct, congenital
• Accessory (congenital) › biliary duct or passage
• Accessory (congenital) › cystic duct
• Accessory (congenital) › hepatic ducts
• Accessory (congenital) › liver › duct
• Agenesis › bile duct or passage
• Anomaly, anomalous (congenital) (unspecified type) › biliary duct or passage
• Anomaly, anomalous (congenital) (unspecified type) › common duct
• Anomaly, anomalous (congenital) (unspecified type) › cystic duct
• Anomaly, anomalous (congenital) (unspecified type) › hepatic duct
• Anomaly, anomalous (congenital) (unspecified type) › liver › duct
• Deformity › bile duct (common) (congenital) (hepatic)
• Deformity › biliary duct or passage (congenital)
• Deformity › cystic duct (congenital)
• Deformity › hepatic duct (congenital)
• Dilatation › common duct (acquired) › congenital
• Dilatation › cystic duct (acquired) › congenital
• Distortion (s) (congenital) › bile duct or passage
• Distortion (s) (congenital) › common duct
• Distortion (s) (congenital) › cystic duct
• Distortion (s) (congenital) › hepatic duct
• Duplication, duplex › biliary duct (any)
• Duplication, duplex › cystic duct
• Elongated, elongation (congenital) › common bile duct
• Elongated, elongation (congenital) › cystic duct
• Fistula (cutaneous) › cystic duct › congenital
• Hypoplasia, hypoplastic › biliary duct or passage
• Malformation (congenital) › bile duct
• Malposition › congenital › biliary duct or passage
• Malposition › congenital › hepatic duct
• Short, shortening, shortness › common bile duct, congenital
• Short, shortening, shortness › cystic duct, congenital
• Torsion › bile duct (common) (hepatic) › congenital

Nearby codes

• Q44.0 Agenesis, aplasia and hypoplasia of gallbladder
• Q44.1 Other congenital malformations of gallbladder
• Q44.2 Atresia of bile ducts
• Q44.3 Congenital stenosis and stricture of bile ducts
• Q44.4 Choledochal cyst
• Q44.5 Other congenital malformations of bile ducts (this code)
• Q44.6 Cystic disease of liver
• Q44.7 Other congenital malformations of liver
• Q44.70 Other congenital malformation of liver, unspecified
• Q44.71 Alagille syndrome
• Q44.79 Other congenital malformations of liver