G11: Hereditary ataxia
Codes under G11 (Hereditary ataxia). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| G11.0 | Congenital nonprogressive ataxia | ✓ |
| G11.0 | Congenital nonprogressive ataxia | ✓ |
| G11.1 | Early-onset cerebellar ataxia | — |
| G11.1 | Early-onset cerebellar ataxia | — |
| G11.2 | Late-onset cerebellar ataxia | ✓ |
| G11.2 | Late-onset cerebellar ataxia | ✓ |
| G11.3 | Cerebellar ataxia with defective DNA repair | ✓ |
| G11.3 | Cerebellar ataxia with defective DNA repair | ✓ |
| G11.4 | Hereditary spastic paraplegia | ✓ |
| G11.4 | Hereditary spastic paraplegia | ✓ |
| G11.5 | Hypomyelination - hypogonadotropic hypogonadism - hypodontia | ✓ |
| G11.5 | Hypomyelination - hypogonadotropic hypogonadism - hypodontia | ✓ |
| G11.6 | Leukodystrophy with vanishing white matter disease | ✓ |
| G11.6 | Leukodystrophy with vanishing white matter disease | ✓ |
| G11.8 | Other hereditary ataxias | ✓ |
| G11.8 | Other hereditary ataxias | ✓ |
| G11.9 | Hereditary ataxia, unspecified | ✓ |
| G11.9 | Hereditary ataxia, unspecified | ✓ |
| G11.10 | Early-onset cerebellar ataxia, unspecified | ✓ |
| G11.10 | Early-onset cerebellar ataxia, unspecified | ✓ |
| G11.11 | Friedreich ataxia | ✓ |
| G11.11 | Friedreich ataxia | ✓ |
| G11.19 | Other early-onset cerebellar ataxia | ✓ |
| G11.19 | Other early-onset cerebellar ataxia | ✓ |
Frequently asked questions
What is ICD-10-CM code G11?
G11 is an ICD-10-CM category covering Hereditary ataxia. It contains 24 more specific diagnosis codes, 22 of which are billable.
Is G11 a billable code?
No — G11 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 G11.0 — Congenital nonprogressive ataxia). 22 of the 24 codes under G11 are billable.
What codes fall under G11?
G11 includes G11.0, G11.0, G11.1, G11.1, G11.2, plus 19 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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