ICD-10-CM › G00-G99 › G10-G14 › G11 Hereditary ataxia › G11.9
Hereditary ataxia, unspecified
ValidICD-10-CM diagnosis code.
Valid for claims with a date of service in the current code year.
What has happened to this code
Every change the publisher made, from 2007 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.
- FY2007 Added to the draft code set draft Hereditary ataxia, unspecified
Official coding rules
Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.
Inherited from G11 Hereditary ataxia
Excludes2 - not included here
- cerebral palsy (G80.-)
- hereditary and idiopathic neuropathy (G60.-)
- metabolic disorders (E70-E88)
How CDC's index refers to this code
Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.
- Ataxia, ataxy, ataxic > heredofamilial
- Ataxia, ataxy, ataxic > family, familial
- Ataxia, ataxy, ataxic > brain
- Paralysis, paralytic > ataxic
- Ataxia, ataxy, ataxic > cerebral
- Ataxia, ataxy, ataxic > cerebellar
- Ataxia, ataxy, ataxic > hereditary
- Syndrome > cerebellar > hereditary
- Disease, diseased > spinocerebellar
- Sclerosis, sclerotic > hereditary > cerebellar
- Degeneration, degenerative > cerebellar NOS > primary
Codes in the same group
| Code | Description | Status |
|---|---|---|
| G11.0 | Congenital nonprogressive ataxia | Valid |
| G11.1 | Early-onset cerebellar ataxia | Not billable |
| G11.2 | Late-onset cerebellar ataxia | Valid |
| G11.3 | Cerebellar ataxia with defective DNA repair | Valid |
| G11.4 | Hereditary spastic paraplegia | Valid |
| G11.5 | Hypomyelination - hypogonadotropic hypogonadism - hypodontia | Valid |
| G11.6 | Leukodystrophy with vanishing white matter disease | Valid |
| G11.8 | Other hereditary ataxias | Valid |