Q26.9
ICD-10BillableCongenital malformation of great vein, unspecified
Official ICD-10-CM descriptor (FY2026)
Congenital malformation of great vein, unspecified
Q26.9 is valid for submission on a claim — CMS flags it as a billable, specific code.
Inclusion terms
- Congenital anomaly of vena cava (inferior) (superior) NOS
Related 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
Where this code sits
- Parent code
- Q26
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.