Q26
⚠ Non-billable
Congenital malformations of great veins
ICD-10-CM · FY2026 · Congenital Malformations, Deformations and Chromosomal Abnormalities
Code
Q26
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Congenital Malformations, Deformations and Chromosomal Abnormalities
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code Q26?
ICD-10-CM code Q26 represents Congenital malformations of great veins. It is a non-billable header code requiring a more specific subcategory in the Congenital Malformations, Deformations and Chromosomal Abnormalities chapter, effective October 1, 2025 – September 30, 2026.
Is Q26 billable?
No. Q26 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is Q26 in?
Q26 belongs to the Congenital Malformations, Deformations and Chromosomal Abnormalities chapter (Q00–Q99) of ICD-10-CM.
Related codes in the Q26 category
Q26.0
Congenital stenosis of vena cava
Billable
Q26.1
Persistent left superior vena cava
Billable
Q26.2
Total anomalous pulmonary venous connection
Billable
Q26.3
Partial anomalous pulmonary venous connection
Billable
Q26.4
Anomalous pulmonary venous connection, unspecified
Billable
Q26.5
Anomalous portal venous connection
Billable
Q26.6
Portal vein-hepatic artery fistula
Billable
Q26.8
Other congenital malformations of great veins
Billable
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