ICD-10 G50.0
Billable / SpecificTrigeminal neuralgia
About ICD-10-CM G50.0
ICD-10-CM code G50.0 represents Trigeminal neuralgia. This is a billable/specific code in the Nervous System chapter (block G50). The 2026 edition of ICD-10-CM G50.0 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under G50.0. Per CMS ICD-10-CM Tabular 2026.
- Syndrome of paroxysmal facial pain
- Tic douloureux
Medicare LCD Coverage for G50.0
Local Coverage Determinations (LCDs) from CMS MACs that list G50.0 as a covered diagnosis.
Showing top 10 of 741 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing G50.0.
1 Aetna
2 Cigna
5 Medicare
CPT Codes Commonly Billed with G50.0
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 64510 CMS LCD: Billing and Coding: Peripheral Nerve Blocks and Procedures for Chronic Pain CMS LCD
- 64632 CMS LCD: Billing and Coding: Peripheral Nerve Blocks and Procedures for Chronic Pain CMS LCD
- 64400 CMS LCD: Billing and Coding: Peripheral Nerve Blocks and Procedures for Chronic Pain CMS LCD
- 64600 CMS LCD: Billing and Coding: Peripheral Nerve Blocks and Procedures for Chronic Pain CMS LCD
- 64999 CMS LCD: Billing and Coding: Peripheral Nerve Blocks and Procedures for Chronic Pain CMS LCD
- 64624 CMS LCD: Billing and Coding: Peripheral Nerve Blocks and Procedures for Chronic Pain CMS LCD
- 64605 CMS LCD: Billing and Coding: Peripheral Nerve Blocks and Procedures for Chronic Pain CMS LCD
- 64405 CMS LCD: Billing and Coding: Peripheral Nerve Blocks and Procedures for Chronic Pain CMS LCD
- 64610 CMS LCD: Billing and Coding: Peripheral Nerve Blocks and Procedures for Chronic Pain CMS LCD
- 64505 CMS LCD: Billing and Coding: Peripheral Nerve Blocks and Procedures for Chronic Pain CMS LCD
Convert G50.0 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 |
|---|---|---|
| G50.0 | 3501 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To G50.0
Other codes in section G50-G59 (Nerve, nerve root and plexus disorders).
ICD-10 G50.0, Billing FAQ
Is ICD-10 code G50.0 billable? +
Yes, G50.0 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 G50.0? +
ICD-10 G50.0 includes: Syndrome of paroxysmal facial pain; Tic douloureux.
What CPT codes are commonly billed with G50.0? +
Procedures frequently paired with G50.0 include: 64510, 64632, 64400, 64600, 64999.
What ICD-9 codes does G50.0 map to? +
Per CMS GEMs, G50.0 maps to ICD-9 codes: 3501. 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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