ICD-10 R27.0
Billable / SpecificAtaxia, unspecified
About ICD-10-CM R27.0
ICD-10-CM code R27.0 represents Ataxia, unspecified. This is a billable/specific code in the Symptoms, Signs, and Abnormal Findings chapter (block R27). The 2026 edition of ICD-10-CM R27.0 became effective on October 1, 2025.
Type 1 Excludes
Pure excludes, these codes can never be coded together with R27.0. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- ataxia following cerebrovascular disease (I69. with final characters -93)
Medicare LCD Coverage for R27.0
Local Coverage Determinations (LCDs) from CMS MACs that list R27.0 as a covered diagnosis.
Showing top 10 of 598 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing R27.0.
2 Cigna
5 Medicare
1 Aetna
CPT Codes Commonly Billed with R27.0
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 97112 Neuromuscular reeducation — hemiplegia, paraplegia, cerebral palsy, post-stroke, gait abnormality, ataxia, MS, Parkinson, concussion, hx TBI Physical Therapy
Convert R27.0 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| R27.0 | 7813 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To R27.0
Other codes in section R25-R29 (Symptoms and signs involving the nervous and musculoskeletal systems).
ICD-10 R27.0, Billing FAQ
Is ICD-10 code R27.0 billable? +
Yes, R27.0 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What codes are Type 1 Excludes for R27.0? +
Type 1 Excludes (never code together with R27.0): ataxia following cerebrovascular disease (I69. with final characters -93)
What CPT codes are commonly billed with R27.0? +
Procedures frequently paired with R27.0 include: 97112.
What ICD-9 codes does R27.0 map to? +
Per CMS GEMs, R27.0 maps to ICD-9 codes: 7813. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on July 16, 2026.
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