ICD-10-CM category
Q26 Congenital malformations of great veins
Q26 is a category, not a billable code. Report one of the 9 complete codes below.
Codes in Q26
- Q26.0Congenital stenosis of vena cava
- Q26.1Persistent left superior vena cava
- Q26.2Total anomalous pulmonary venous connection
- Q26.3Partial anomalous pulmonary venous connection
- Q26.4Anomalous pulmonary venous connection, unspecified
- Q26.5Anomalous portal venous connection
- Q26.6Portal vein-hepatic artery fistula
- Q26.8Other congenital malformations of great veins
- Q26.9Congenital malformation of great vein, unspecified
Outside the US? Q26 in the international WHO ICD-10 lists its inclusion and exclusion notes.
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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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