G11 Hereditary ataxia

Category / Non-billable header 12 subcodes

Block: Systemic atrophies primarily affecting the central nervous system (G10-G14)

Excludes 2 (not included here)

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

Subcodes

Each subcode links to a detail page with full clinical annotations.

Code Description Billable
G11..0 Congenital nonprogressive ataxia Yes
G11..1 Early-onset cerebellar ataxia No
G11..10 Early-onset cerebellar ataxia, unspecified Yes
G11..11 Friedreich ataxia Yes
G11..19 Other early-onset cerebellar ataxia Yes
G11..2 Late-onset cerebellar ataxia Yes
G11..3 Cerebellar ataxia with defective DNA repair Yes
G11..4 Hereditary spastic paraplegia Yes
G11..5 Hypomyelination - hypogonadotropic hypogonadism - hypodontia Yes
G11..6 Leukodystrophy with vanishing white matter disease Yes
G11..8 Other hereditary ataxias Yes
G11..9 Hereditary ataxia, unspecified Yes

Last reviewed: September 2026