ICD-10/G11.1

G11.1 ICD 2026 Code: Early-onset cerebellar ataxia

G11.1 is the authoritative medical code for Early-onset cerebellar ataxia. This classification is used in medical billing and clinical recording to specify the clinical criteria for early-onset cerebellar ataxia (ICD-10-CM G11.1), ensuring healthcare documentation aligns with 2026 federal coding standards.

Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.

Official Registry Overview & Definition

Early-onset cerebellar ataxia is a non-billable ICD-10-CM category code G11.1. A more specific billable subcode must be selected for claims submission. Excludes2 (not included here): cerebral palsy G80.-; hereditary and idiopathic neuropathy G60.-; metabolic disorders E70-E88.

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for G11.1 in the official ICD-10-CM tabular list.

Excludes2 — Not Included Here

Conditions not covered by this code, but which may be reported alongside it when both are present.

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

Frequently Asked Questions (FAQ) & Clinical Guidance

Can G11.1 be billed directly?

No. G11.1 (Early-onset cerebellar ataxia) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.

Can G11.1 be reported alongside related conditions?

Per official ICD-10-CM Excludes2 instructions, G11.1 and the following are not considered part of each other and may both be reported when both conditions are present: cerebral palsy (G80.-); hereditary and idiopathic neuropathy (G60.-); metabolic disorders (E70-E88).

Nearest Codes in This Family

Official ICD-10-CM classifications closest to G11.1 in its code family, with their registry titles.

  • G11 — Hereditary ataxia
  • G11.0 — Congenital nonprogressive ataxia
  • G11.10 — Early-onset cerebellar ataxia, unspecified
  • G11.11 — Friedreich ataxia
  • G11.19 — Other early-onset cerebellar ataxia
  • G11.2 — Late-onset cerebellar ataxia
  • G11.3 — Cerebellar ataxia with defective DNA repair
  • G11.4 — Hereditary spastic paraplegia
  • G11.5 — Hypomyelination - hypogonadotropic hypogonadism - hypodontia
  • G11.6 — Leukodystrophy with vanishing white matter disease

View all 12 codes in the G11 family