Q07: Other congenital malformations of nervous system
Codes under Q07 (Other congenital malformations of nervous system). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| Q07.0 | Arnold-Chiari syndrome | — |
| Q07.0 | Arnold-Chiari syndrome | — |
| Q07.00 | Arnold-Chiari syndrome without spina bifida or hydrocephalus | ✓ |
| Q07.00 | Arnold-Chiari syndrome without spina bifida or hydrocephalus | ✓ |
| Q07.01 | Arnold-Chiari syndrome with spina bifida | ✓ |
| Q07.01 | Arnold-Chiari syndrome with spina bifida | ✓ |
| Q07.02 | Arnold-Chiari syndrome with hydrocephalus | ✓ |
| Q07.02 | Arnold-Chiari syndrome with hydrocephalus | ✓ |
| Q07.03 | Arnold-Chiari syndrome with spina bifida and hydrocephalus | ✓ |
| Q07.03 | Arnold-Chiari syndrome with spina bifida and hydrocephalus | ✓ |
| Q07.8 | Other specified congenital malformations of nervous system | ✓ |
| Q07.8 | Other specified congenital malformations of nervous system | ✓ |
| Q07.9 | Congenital malformation of nervous system, unspecified | ✓ |
| Q07.9 | Congenital malformation of nervous system, unspecified | ✓ |
Frequently asked questions
What is ICD-10-CM code Q07?
Q07 is an ICD-10-CM category covering Other congenital malformations of nervous system. It contains 14 more specific diagnosis codes, 12 of which are billable.
Is Q07 a billable code?
No — Q07 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example Q07.0 — Arnold-Chiari syndrome). 12 of the 14 codes under Q07 are billable.
What codes fall under Q07?
Q07 includes Q07.0, Q07.0, Q07.00, Q07.00, Q07.01, plus 9 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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