ICD-10 G50.9
Billable / SpecificDisorder of trigeminal nerve, unspecified
About ICD-10-CM G50.9
ICD-10-CM code G50.9 represents Disorder of trigeminal nerve, unspecified. This is a billable/specific code in the Nervous System chapter (block G50). The 2026 edition of ICD-10-CM G50.9 became effective on October 1, 2025.
Medicare LCD Coverage for G50.9
Local Coverage Determinations (LCDs) from CMS MACs that list G50.9 as a covered diagnosis.
Showing top 10 of 109 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing G50.9.
2 Cigna
5 Medicare
CPT Codes Commonly Billed with G50.9
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 G50.9 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 |
|---|---|---|
| G50.9 | 3509 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To G50.9
Other codes in section G50-G59 (Nerve, nerve root and plexus disorders).
ICD-10 G50.9, Billing FAQ
Is ICD-10 code G50.9 billable? +
Yes, G50.9 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What ICD-9 codes does G50.9 map to? +
Per CMS GEMs, G50.9 maps to ICD-9 codes: 3509. 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 May 31, 2026.
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