ICD-10 G54.3
Billable / SpecificThoracic root disorders, not elsewhere classified
About ICD-10-CM G54.3
ICD-10-CM code G54.3 represents Thoracic root disorders, not elsewhere classified. This is a billable/specific code in the Nervous System chapter (block G54). The 2026 edition of ICD-10-CM G54.3 became effective on October 1, 2025.
Medicare LCD Coverage for G54.3
Local Coverage Determinations (LCDs) from CMS MACs that list G54.3 as a covered diagnosis.
Showing top 10 of 632 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing G54.3.
1 Cigna
5 Medicare
CPT Codes Commonly Billed with G54.3
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 64596 CMS LCD: Billing and Coding: Peripheral Nerve Stimulation CMS LCD
- 64598 CMS LCD: Billing and Coding: Peripheral Nerve Stimulation CMS LCD
- 64570 CMS LCD: Billing and Coding: Peripheral Nerve Stimulation CMS LCD
- 64597 CMS LCD: Billing and Coding: Peripheral Nerve Stimulation CMS LCD
- 64569 CMS LCD: Billing and Coding: Peripheral Nerve Stimulation CMS LCD
- 64581 CMS LCD: Billing and Coding: Peripheral Nerve Stimulation CMS LCD
- 64590 CMS LCD: Billing and Coding: Peripheral Nerve Stimulation CMS LCD
- 64555 CMS LCD: Billing and Coding: Peripheral Nerve Stimulation CMS LCD
- 64595 CMS LCD: Billing and Coding: Peripheral Nerve Stimulation CMS LCD
- 64585 CMS LCD: Billing and Coding: Peripheral Nerve Stimulation CMS LCD
Convert G54.3 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 |
|---|---|---|
| G54.3 | 3533 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To G54.3
Other codes in section G50-G59 (Nerve, nerve root and plexus disorders).
ICD-10 G54.3, Billing FAQ
Is ICD-10 code G54.3 billable? +
Yes, G54.3 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What CPT codes are commonly billed with G54.3? +
Procedures frequently paired with G54.3 include: 64596, 64598, 64570, 64597, 64569.
What ICD-9 codes does G54.3 map to? +
Per CMS GEMs, G54.3 maps to ICD-9 codes: 3533. 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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