ICD-10-CM category
Q04: Other congenital malformations of brain
Codes under Q04 (Other congenital malformations of brain). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| Q04.0 | Congenital malformations of corpus callosum | ✓ |
| Q04.1 | Arhinencephaly | ✓ |
| Q04.2 | Holoprosencephaly | ✓ |
| Q04.3 | Other reduction deformities of brain | ✓ |
| Q04.4 | Septo-optic dysplasia of brain | ✓ |
| Q04.5 | Megalencephaly | ✓ |
| Q04.6 | Congenital cerebral cysts | ✓ |
| Q04.8 | Other specified congenital malformations of brain | ✓ |
| Q04.9 | Congenital malformation of brain, unspecified | ✓ |
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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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