ICD-10-CM code · FY2027
G11.1 Early-onset cerebellar ataxia
Header codeNot billable: use one of the 3 billable codes below
About G11.1
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Coding notes for G11.1
No notes of its own; the notes below apply from the codes above it.
Also applies, from G11 Hereditary ataxia
Excludes2 Not part of this condition, but a patient can have both: report both codes when both apply.
Chapter 6 notes (apply to every code in it)
Excludes2 Not part of this condition, but a patient can have both: report both codes when both apply.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Codes under G11.1 3
Related codes in G11
- G11.0 Congenital nonprogressive ataxiaBillable
- G11.2 Late-onset cerebellar ataxiaBillable
- G11.3 Cerebellar ataxia with defective DNA repairBillable
- G11.4 Hereditary spastic paraplegiaBillable
- G11.5 Hypomyelination - hypogonadotropic hypogonadism - hypodontiaBillable
- G11.6 Leukodystrophy with vanishing white matter diseaseBillable
- G11.8 Other hereditary ataxiasBillable
- G11.9 Hereditary ataxia, unspecifiedBillable
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See 2MM+ plansICD-10-CM FY2027 code set, as published by the CDC National Center for Health Statistics (NCHS) and CMS, effective October 1, 2026 to September 30, 2027. Codes, titles and notes are shown as published. Check payer rules and the official guidelines before billing. This page is not medical advice.
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