Q26.9 is the authoritative medical code for Congenital malformation of great vein, unspecified. This classification is used in medical billing and clinical recording to specify the clinical criteria for congenital malformation of great vein, unspecified (ICD-10-CM Q26.9), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Congenital malformation of great vein, unspecified is a billable ICD-10-CM diagnosis code Q26.9. Inclusion terms: Congenital anomaly of vena cava inferior superior NOS.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for Q26.9 in the official ICD-10-CM tabular list.
Inclusion Terms
Alternative terms the tabular list files under this code.
- Congenital anomaly of vena cava inferior superior NOS
Frequently Asked Questions (FAQ) & Clinical Guidance
What conditions are included under Q26.9?
Congenital malformation of great vein, unspecified includes: Congenital anomaly of vena cava (inferior) (superior) NOS.
Codes in This Family (9)
Official ICD-10-CM classifications in the same code family as Q26.9, with their registry titles.
- Q26 — Congenital malformations of great veins
- Q26.0 — Congenital stenosis of vena cava
- Q26.1 — Persistent left superior vena cava
- Q26.2 — Total anomalous pulmonary venous connection
- Q26.3 — Partial anomalous pulmonary venous connection
- Q26.4 — Anomalous pulmonary venous connection, unspecified
- Q26.5 — Anomalous portal venous connection
- Q26.6 — Portal vein-hepatic artery fistula
- Q26.8 — Other congenital malformations of great veins
Indexed Clinical Terms (4)
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
- Anomaly, anomalous (congenital) (unspecified type), vein (s) (peripheral), great
- Anomaly, anomalous (congenital) (unspecified type), vena cava (inferior) (superior)
- Deformity, vein (congenital), great
- Malformation (congenital), great, vein
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
ICD Code Q22.9
Congenital malformation of tricuspid valve, unspecified
ICD Code Q23.9
Congenital malformation of aortic and mitral valves, unspecified
ICD Code Q27.9
Congenital malformation of peripheral vascular system, unspecified
ICD Code Q28.9
Congenital malformation of circulatory system, unspecified