Q40

Non-billable

Other congenital malformations of upper alimentary tract

Q40 is the ICD-10-CM code for Other congenital malformations of upper alimentary tract. It is a non-billable category code — use a more specific child code such as Q40.0 for billing.

Status
Header (non-billable)
Chapter
Q00-Q99
Subcodes
6
Edition
FY2026

Q00-Q99 Congenital malformations, deformations and chromosomal abnormalities

What this means — in plain language

MedlinePlus · NIH

What are birth defects? A birth defect is a problem that happens while a baby is developing in the mother's body. Most birth defects happen during the first 3 months of pregnancy. One out of every 33 babies in the United States is born with a birth defect. A birth defect may affect how the body looks, works, or both. Some birth defects like cleft lip or neural tube defects are structural problems that can be easy to…

Read more about Birth 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 Q40?
Q40 is the ICD-10-CM code for "Other congenital malformations of upper alimentary tract". It falls under Q00-Q99 Congenital malformations, deformations and chromosomal abnormalities.
Is Q40 a billable code?
No — Q40 is a non-billable header code. Use a more specific child code (such as Q40.0) for billing.
What are the subcodes of Q40?
Q40 has 6 more specific child codes, including Q40.0, Q40.1, Q40.2.

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

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