ICD-10 Code G11.10 – Early-onset cerebellar ataxia, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G11.10 – Early-onset cerebellar ataxia, unspecified
What it is
G11.10 identifies early-onset cerebellar ataxia when the record does not specify a cause or subtype. It refers to a coordination disorder that begins early in life and is linked to cerebellar dysfunction.
Clinical signs
Typical findings include unsteady gait, poor coordination, and difficulty with balance or fine motor tasks. Clinical features vary; refer to documentation for age of onset and any associated neurologic findings.
When to use this code
Use this code when the provider documents early-onset cerebellar ataxia but does not name a more specific hereditary, metabolic, or acquired diagnosis. It is appropriate for confirmed cerebellar ataxia with early onset and unspecified etiology. Check documentation if the chart suggests a more defined disorder.
Do not use for
Do not use this code for ataxia with a documented specific cause, such as another named neurologic disease or genetic syndrome. Do not use it when the record only mentions nonspecific dizziness or imbalance.
Coding tip
Look for the exact provider wording and code the highest level of specificity documented.