FY2027
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ICD-10 Code for Ataxia

The ICD-10-CM code for ataxia is R27.0 — Ataxia, unspecified. This is the code the Alphabetic Index gives for ataxia with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).

BillableUnspecified

R27.0 is billable but unspecified. If the documentation names a type, site or cause, one of the more specific codes below is likely expected.

Which ataxia code should you use?

The Alphabetic Index lists 29 codes under Ataxia, ataxy, ataxic. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.

By type

acuteR27.8Other lack of coordination
autosomal recessive FriedreichG11.11Friedreich ataxia
brainG11.9Hereditary ataxia, unspecified
cerebellarG11.9Hereditary ataxia, unspecified
cerebralG11.9Hereditary ataxia, unspecified
congenital nonprogressiveG11.0Congenital nonprogressive ataxia
Friedreich'sG11.11Friedreich ataxia
gaitR26.0Ataxic gait
generalR27.8Other lack of coordination
glutenM35.9Systemic involvement of connective tissue, unspecified
hereditaryG11.9Hereditary ataxia, unspecified
Hunt'sG11.19Other early-onset cerebellar ataxia
hystericalF44.4Conversion disorder with motor symptom or deficit
locomotorA52.11Tabes dorsalis
Marie'sG11.2Late-onset cerebellar ataxia
nonorganic originF44.4Conversion disorder with motor symptom or deficit
nonprogressive, congenitalG11.0Congenital nonprogressive ataxia
psychogenicF44.4Conversion disorder with motor symptom or deficit
Roussy-LévyG60.0Hereditary motor and sensory neuropathy
Sanger-Brown'sG11.2Late-onset cerebellar ataxia
spastic hereditaryG11.4Hereditary spastic paraplegia
spinocerebellar, X-linked recessiveG11.19Other early-onset cerebellar ataxia
telangiectasiaG11.3Cerebellar ataxia with defective DNA repair

Ataxia cerebellar

with defective DNA repairG11.3Cerebellar ataxia with defective DNA repair
alcoholicG31.2Degeneration of nervous system due to alcohol
early-onsetG11.10Early-onset cerebellar ataxia, unspecified
late-onsetG11.2Late-onset cerebellar ataxia
with › essential tremorG11.19Other early-onset cerebellar ataxia
with › myoclonus [Hunt's ataxia]G11.19Other early-onset cerebellar ataxia
with › retained tendon reflexesG11.19Other early-onset cerebellar ataxia
in › alcoholismG31.2Degeneration of nervous system due to alcohol
in › myxedemaE03.9Hypothyroidism, unspecified
in › neoplastic diseaseD49.9Neoplasm of unspecified behavior of unspecified site
in › specified disease NECG32.81Cerebellar ataxia in diseases classified elsewhere

Ataxia following

cerebrovascular diseaseI69.993Ataxia following unspecified cerebrovascular disease
cerebrovascular disease › cerebral infarctionI69.393Ataxia following cerebral infarction
cerebrovascular disease › intracerebral hemorrhageI69.193Ataxia following nontraumatic intracerebral hemorrhage
cerebrovascular disease › nontraumatic intracranial hemorrhage NECI69.293Ataxia following other nontraumatic intracranial hemorrhage
cerebrovascular disease › specified disease NECI69.893Ataxia following other cerebrovascular disease
cerebrovascular disease › subarachnoid hemorrhageI69.093Ataxia following nontraumatic subarachnoid hemorrhage

Ataxia gait

hystericalF44.4Conversion disorder with motor symptom or deficit

Ataxia gluten

with celiac diseaseK90.0Celiac disease

Ataxia hereditary

with neuropathyG60.2Neuropathy in association with hereditary ataxia
spasticG11.4Hereditary spastic paraplegia
specified NECG11.8Other hereditary ataxias
spinalG11.11Friedreich ataxia

Ataxia spinal

hereditaryG11.11Friedreich ataxia
progressiveA52.11Tabes dorsalis

Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources