ICD-10 G64
Billable / SpecificOther disorders of peripheral nervous system
About ICD-10-CM G64
ICD-10-CM code G64 represents Other disorders of peripheral nervous system. This is a billable/specific code in the Nervous System chapter (block G64). The 2026 edition of ICD-10-CM G64 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under G64. Per CMS ICD-10-CM Tabular 2026.
- Disorder of peripheral nervous system NOS
Medicare Advantage HCC Impact
Capture this diagnosis annually for accurate risk adjustment. Missed HCC captures are the #1 revenue leak in Medicare Advantage risk programs.
Medicare LCD Coverage for G64
Local Coverage Determinations (LCDs) from CMS MACs that list G64 as a covered diagnosis.
Showing top 10 of 309 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing G64.
1 Cigna
5 Medicare
CPT Codes Commonly Billed with G64
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Convert G64 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 |
|---|---|---|
| G64 | 35789 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To G64
Other codes in section G60-G65 (Polyneuropathies and other disorders of the peripheral nervous system).
ICD-10 G64, Billing FAQ
Is ICD-10 code G64 billable? +
Yes, G64 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to G64? +
ICD-10 G64 includes: Disorder of peripheral nervous system NOS.
What ICD-9 codes does G64 map to? +
Per CMS GEMs, G64 maps to ICD-9 codes: 35789. 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 June 1, 2026.
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