G11.9
Hereditary ataxia, unspecified
- Release
- FY 2027
- Effective
Hierarchy
Where G11.9 sits in the official hierarchy. Each level is the code it is classified under.
- G11 Parent Hereditary ataxia
- G11.9 This code Hereditary ataxia, unspecified
Official Coding Notes
Reproduced verbatim from the FY 2027 ICD-10-CM files. Notes labelled as inherited are declared on a parent code and apply here too.
Inclusion Terms
Hereditary cerebellar ataxia NOS
Inclusion Terms
Hereditary cerebellar degeneration
Inclusion Terms
Hereditary cerebellar disease
Inclusion Terms
Hereditary cerebellar syndrome
Version History
How G11.9 appears in each release imported from the official files, newest first.
-
FY 2027 Effective
CurrentHereditary ataxia, unspecified
-
FY 2026 Effective
UnchangedHereditary ataxia, unspecified
Related Codes
Other codes under G11
- G11.0 Congenital nonprogressive ataxia Billable
- G11.1 Early-onset cerebellar ataxia
- G11.2 Late-onset cerebellar ataxia Billable
- G11.3 Cerebellar ataxia with defective DNA repair Billable
- G11.4 Hereditary spastic paraplegia Billable
- G11.5 Hypomyelination - hypogonadotropic hypogonadism - hypodontia Billable
- G11.6 Leukodystrophy with vanishing white matter disease Billable
- G11.8 Other hereditary ataxias Billable
Data Source
Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.
- Release
- FY 2027
- Effective
- Source file
- icd10cm-code-descriptions-2027.zip
Official ICD-10-CM source files (opens in a new tab)
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