ICD-10-CM diagnosis code
Q44.6 Cystic disease of liver
- Billable
- Yes, a complete code (FY2026)
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Other codes in Q44
10 complete codes in this category.
- Q44.0Agenesis, aplasia and hypoplasia of gallbladder
- Q44.1Other congenital malformations of gallbladder
- Q44.2Atresia of bile ducts
- Q44.3Congenital stenosis and stricture of bile ducts
- Q44.4Choledochal cyst
- Q44.5Other congenital malformations of bile ducts
- Q44.6Cystic disease of liver
- Q44.70Other congenital malformation of liver, unspecified
- Q44.71Alagille syndrome
- Q44.79Other congenital malformations of liver
Documentation tips
- Make sure the note supports every element of the title, “Cystic disease of liver”: each detail in it should be traceable to the history, examination or assessment.
- Code to the highest specificity the documentation supports. If a detail is missing from the note, add it to the note rather than choosing a less specific code by default.
- Check the Tabular List and official guidelines for instructional notes (“code first”, “use additional code”, Excludes1/Excludes2) that apply to Q44.
The international WHO ICD-10 also has Q44.6, with its inclusion and exclusion notes; titles and detail can differ from ICD-10-CM.
ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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