Q07.0
Non-billableArnold-Chiari syndrome
Q07.0 is the ICD-10-CM code for Arnold-Chiari syndrome. It is a non-billable category code — use a more specific child code such as Q07.00 for billing.
Q00-Q99 Congenital malformations, deformations and chromosomal abnormalities
What this means — in plain language
MedlinePlus · NIHChiari malformations (CMs) are structural defects in the cerebellum. The cerebellum is the part of the brain that controls balance. With CM, brain tissue extends into the spinal canal. It can happen when part of the skull is too small, which pushes the brain tissue down. There are several types of CM. One type often happens in children who have neural tube defects . Some types cause no symptoms and don't need…
Read more about Chiari Malformation at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Includes
- •Arnold-Chiari syndrome, type II
Excludes1 — not coded here
Frequently asked questions
- What is ICD-10 code Q07.0?
- Q07.0 is the ICD-10-CM code for "Arnold-Chiari syndrome". It falls under Q00-Q99 Congenital malformations, deformations and chromosomal abnormalities.
- Is Q07.0 a billable code?
- No — Q07.0 is a non-billable header code. Use a more specific child code (such as Q07.00) for billing.
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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