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G11.1

⚠ Non-billable (Header)

Early-onset cerebellar ataxia

Diseases of the nervous system (G00-G99)

⚠️ This is a category header code — not billable. Use a more specific child code below.

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⚠️ Excludes2

inherited from G11

Rules from parent category G11: Hereditary ataxia

  • • cerebral palsy (G80.-)
  • • hereditary and idiopathic neuropathy (G60.-)
  • • metabolic disorders (E70-E88)

Child Codes (3)

G11.10Early-onset cerebellar ataxia, unspecifiedG11.11Friedreich ataxiaG11.19Other early-onset cerebellar ataxia

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Code Information

CodeG11.1
BillableNo — Header code
ParentG11
CategoryDiseases of the nervous system (G00-G99)
Excludes10 rule(s)
Excludes23 note(s)
Child codes3

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)