ICD-10 G56.00
Billable / SpecificCarpal tunnel syndrome, unspecified upper limb
About ICD-10-CM G56.00
ICD-10-CM code G56.00 represents Carpal tunnel syndrome, unspecified upper limb. This is a billable/specific code in the Nervous System chapter (block G56). The 2026 edition of ICD-10-CM G56.00 became effective on October 1, 2025.
Medicare LCD Coverage for G56.00
Local Coverage Determinations (LCDs) from CMS MACs that list G56.00 as a covered diagnosis.
Showing top 10 of 22 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing G56.00.
5 Aetna
2 Medicare
CPT Codes Commonly Billed with G56.00
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 95907 Nerve conduction study 1-2 — carpal tunnel, ulnar neuropathy, sciatica, polyneuropathy, Guillain-Barre, diabetic neuropathy, hereditary neuropathy Neurology
- 95910 Nerve conduction study 5-6 — same plus myasthenia gravis Neurology
- 95886 EMG each extremity — carpal tunnel, sciatica, neuropathy, radiculopathy, muscular dystrophy, ALS, MS, diabetic neuropathy, hereditary neuropathy, myalgia Neurology
- 64448 CMS LCD: Billing and Coding: Continuous Peripheral Nerve Blocks (CPNB) CMS LCD
- 64449 CMS LCD: Billing and Coding: Continuous Peripheral Nerve Blocks (CPNB) CMS LCD
- 64416 CMS LCD: Billing and Coding: Continuous Peripheral Nerve Blocks (CPNB) CMS LCD
- 64446 CMS LCD: Billing and Coding: Continuous Peripheral Nerve Blocks (CPNB) CMS LCD
Convert G56.00 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 |
|---|---|---|
| G56.00 | 3540 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To G56.00
Other codes in section G50-G59 (Nerve, nerve root and plexus disorders).
ICD-10 G56.00, Billing FAQ
Is ICD-10 code G56.00 billable? +
Yes, G56.00 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 G56.00? +
Procedures frequently paired with G56.00 include: 95907, 95910, 95886, 64448, 64449.
What ICD-9 codes does G56.00 map to? +
Per CMS GEMs, G56.00 maps to ICD-9 codes: 3540. 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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