ICD-10-CM Alphabetic Index · FY 2026 57 Entries
Ataxia in the ICD-10-CM Index ICD-10-CM
The main term Ataxia, ataxy, ataxic carries 57 index entries pointing to 28 ICD-10-CM codes. The default entry is R27.0, the code the bare main term maps to; every indented line below refines the term by site, cause, or type. Verify any candidate code in the Tabular List before using it.
✓ Built from the official CMS FY 2026 index fileEffective Oct 1, 2025 – Sep 30, 2026
57
Index Entries
28
Codes Referenced
R27.0
Default Code
A
Letter
57 of 57 shown
ICD-10-CM
Index Entries Under Ataxia 57 entries · 28 codes
Ataxia, ataxy, ataxic R27.0
acute R27.8
autosomal recessive Friedreich G11.11
brain (hereditary) G11.9
cerebellar (hereditary) G11.9
with defective DNA repair G11.3
alcoholic G31.2
early-onset G11.10
with
essential tremor G11.19
myoclonus [Hunt's ataxia] G11.19
retained tendon reflexes G11.19
in
alcoholism G31.2
myxedema E03.9
neoplastic disease D49.9 see also Neoplasm
specified disease NEC G32.81
late-onset (Marie's) G11.2
cerebral (hereditary) G11.9
congenital nonprogressive G11.0
family, familial see Ataxia, hereditary
following
cerebrovascular disease I69.993
cerebral infarction I69.393
intracerebral hemorrhage I69.193
nontraumatic intracranial hemorrhage NEC I69.293
specified disease NEC I69.893
subarachnoid hemorrhage I69.093
Friedreich's (heredofamilial) (cerebellar) (spinal) (with retained reflexes) G11.11
gait R26.0
hysterical F44.4
general R27.8
gluten M35.9
with celiac disease K90.0
hereditary G11.9
with neuropathy G60.2
cerebellar see Ataxia, cerebellar
spastic G11.4
specified NEC G11.8
spinal (Friedreich's) G11.11
heredofamilial see Ataxia, hereditary
Hunt's G11.19
hysterical F44.4
locomotor (progressive) (syphilitic) (partial) (spastic) A52.11
diabetic see Diabetes, ataxia
Marie's (cerebellar) (heredofamilial) (late- onset) G11.2
nonorganic origin F44.4
nonprogressive, congenital G11.0
psychogenic F44.4
Roussy-Lévy G60.0
Sanger-Brown's (hereditary) G11.2
spastic hereditary G11.4
spinal
hereditary (Friedreich's) G11.11
progressive (syphilitic) A52.11
spinocerebellar, X-linked recessive G11.19
telangiectasia (Louis-Bar) G11.3
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Related Index Terms
Source: Centers for Medicare & Medicaid Services, FY 2026 ICD-10-CM Index to Diseases and Injuries release files, effective October 1, 2025 through September 30, 2026.
