ICD-10-CM category
G56 Mononeuropathies of upper limb
G56 is a category, not a billable code. Report one of the 28 complete codes below.
Codes in G56
- G56.00Carpal tunnel syndrome, unspecified upper limb
- G56.01Carpal tunnel syndrome, right upper limb
- G56.02Carpal tunnel syndrome, left upper limb
- G56.03Carpal tunnel syndrome, bilateral upper limbs
- G56.10Other lesions of median nerve, unspecified upper limb
- G56.11Other lesions of median nerve, right upper limb
- G56.12Other lesions of median nerve, left upper limb
- G56.13Other lesions of median nerve, bilateral upper limbs
- G56.20Lesion of ulnar nerve, unspecified upper limb
- G56.21Lesion of ulnar nerve, right upper limb
- G56.22Lesion of ulnar nerve, left upper limb
- G56.23Lesion of ulnar nerve, bilateral upper limbs
- G56.30Lesion of radial nerve, unspecified upper limb
- G56.31Lesion of radial nerve, right upper limb
- G56.32Lesion of radial nerve, left upper limb
- G56.33Lesion of radial nerve, bilateral upper limbs
- G56.40Causalgia of unspecified upper limb
- G56.41Causalgia of right upper limb
- G56.42Causalgia of left upper limb
- G56.43Causalgia of bilateral upper limbs
- G56.80Other specified mononeuropathies of unspecified upper limb
- G56.81Other specified mononeuropathies of right upper limb
- G56.82Other specified mononeuropathies of left upper limb
- G56.83Other specified mononeuropathies of bilateral upper limbs
- G56.90Unspecified mononeuropathy of unspecified upper limb
- G56.91Unspecified mononeuropathy of right upper limb
- G56.92Unspecified mononeuropathy of left upper limb
- G56.93Unspecified mononeuropathy of bilateral upper limbs
Outside the US? G56 in the international WHO ICD-10 lists its inclusion and exclusion notes.
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ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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