Q44: Congenital malformations of gallbladder, bile ducts and liver
Codes under Q44 (Congenital malformations of gallbladder, bile ducts and liver). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| Q44.0 | Agenesis, aplasia and hypoplasia of gallbladder | ✓ |
| Q44.0 | Agenesis, aplasia and hypoplasia of gallbladder | ✓ |
| Q44.1 | Other congenital malformations of gallbladder | ✓ |
| Q44.1 | Other congenital malformations of gallbladder | ✓ |
| Q44.2 | Atresia of bile ducts | ✓ |
| Q44.2 | Atresia of bile ducts | ✓ |
| Q44.3 | Congenital stenosis and stricture of bile ducts | ✓ |
| Q44.3 | Congenital stenosis and stricture of bile ducts | ✓ |
| Q44.4 | Choledochal cyst | ✓ |
| Q44.4 | Choledochal cyst | ✓ |
| Q44.5 | Other congenital malformations of bile ducts | ✓ |
| Q44.5 | Other congenital malformations of bile ducts | ✓ |
| Q44.6 | Cystic disease of liver | ✓ |
| Q44.6 | Cystic disease of liver | ✓ |
| Q44.7 | Other congenital malformations of liver | — |
| Q44.7 | Other congenital malformations of liver | — |
| Q44.70 | Other congenital malformation of liver, unspecified | ✓ |
| Q44.70 | Other congenital malformation of liver, unspecified | ✓ |
| Q44.71 | Alagille syndrome | ✓ |
| Q44.71 | Alagille syndrome | ✓ |
| Q44.79 | Other congenital malformations of liver | ✓ |
| Q44.79 | Other congenital malformations of liver | ✓ |
Frequently asked questions
What is ICD-10-CM code Q44?
Q44 is an ICD-10-CM category covering Congenital malformations of gallbladder, bile ducts and liver. It contains 22 more specific diagnosis codes, 20 of which are billable.
Is Q44 a billable code?
No — Q44 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example Q44.0 — Agenesis, aplasia and hypoplasia of gallbladder). 20 of the 22 codes under Q44 are billable.
What codes fall under Q44?
Q44 includes Q44.0, Q44.0, Q44.1, Q44.1, Q44.2, plus 17 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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