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Q26

Non-billable

Congenital malformations of great veins

Q26 is the ICD-10-CM code for Congenital malformations of great veins. It is a non-billable category code — use a more specific child code such as Q26.0 for billing.

Status
Header (non-billable)
Chapter
Q00-Q99
Subcodes
9
Edition
FY2026

Q00-Q99 Congenital malformations, deformations and chromosomal abnormalities

What this means — in plain language

MedlinePlus · NIH

What are congenital heart defects? Congenital heart defects (CHDs) are problems with the structure of the heart. "Congenital" means that that the problems are present at birth. These defects happen when a fetus's heart doesn't develop normally during pregnancy. Congenital heart defects are the most common type of birth defect . Congenital heart defects can change the way the heart pumps blood. They may make blood…

Read more about Congenital Heart Defects at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code Q26?
Q26 is the ICD-10-CM code for "Congenital malformations of great veins". It falls under Q00-Q99 Congenital malformations, deformations and chromosomal abnormalities.
Is Q26 a billable code?
No — Q26 is a non-billable header code. Use a more specific child code (such as Q26.0) for billing.
What are the subcodes of Q26?
Q26 has 9 more specific child codes, including Q26.0, Q26.1, Q26.2.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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