G57 Mononeuropathies of lower limb

⚠ Non-Billable ICD-10-CM 2026
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The ICD-10-CM code for Mononeuropathies of lower limb is G57 (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Section
G50-G59: Nerve, nerve root and plexus disorders (G50-G59)
Category G57
51 codes (40 billable)
FY2026 Status
Stable since FY2024
Excludes1
Not coded here. These conditions should NOT be coded together with G57.
  • current traumatic nerve disorder - see nerve injury by body region

Official Coding Guidelines

Dominant/nondominant side (TOC entry)

a. Dominant/nondominant side ................................................................................................. 45

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.6.a
Pain - Category G89 (TOC entry)

b. Pain - Category G89.............................................................................................................. 45

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.6.b

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

Related Codes

More Specific Codes

G57.0 Lesion of sciatic nerve G57.00 Lesion of sciatic nerve, unspecified lower limb G57.01 Lesion of sciatic nerve, right lower limb G57.02 Lesion of sciatic nerve, left lower limb G57.03 Lesion of sciatic nerve, bilateral lower limbs G57.1 Meralgia paresthetica G57.10 Meralgia paresthetica, unspecified lower limb G57.11 Meralgia paresthetica, right lower limb G57.12 Meralgia paresthetica, left lower limb G57.13 Meralgia paresthetica, bilateral lower limbs G57.2 Lesion of femoral nerve G57.20 Lesion of femoral nerve, unspecified lower limb G57.21 Lesion of femoral nerve, right lower limb G57.22 Lesion of femoral nerve, left lower limb G57.23 Lesion of femoral nerve, bilateral lower limbs G57.3 Lesion of lateral popliteal nerve G57.30 Lesion of lateral popliteal nerve, unspecified lower limb G57.31 Lesion of lateral popliteal nerve, right lower limb G57.32 Lesion of lateral popliteal nerve, left lower limb G57.33 Lesion of lateral popliteal nerve, bilateral lower limbs G57.4 Lesion of medial popliteal nerve G57.40 Lesion of medial popliteal nerve, unspecified lower limb G57.41 Lesion of medial popliteal nerve, right lower limb G57.42 Lesion of medial popliteal nerve, left lower limb G57.43 Lesion of medial popliteal nerve, bilateral lower limbs G57.5 Tarsal tunnel syndrome G57.50 Tarsal tunnel syndrome, unspecified lower limb G57.51 Tarsal tunnel syndrome, right lower limb G57.52 Tarsal tunnel syndrome, left lower limb G57.53 Tarsal tunnel syndrome, bilateral lower limbs

Related Codes in G57

G57.0 Lesion of sciatic nerve G57.00 Lesion of sciatic nerve, unspecified lower limb G57.01 Lesion of sciatic nerve, right lower limb G57.02 Lesion of sciatic nerve, left lower limb G57.03 Lesion of sciatic nerve, bilateral lower limbs G57.1 Meralgia paresthetica G57.10 Meralgia paresthetica, unspecified lower limb G57.11 Meralgia paresthetica, right lower limb G57.12 Meralgia paresthetica, left lower limb G57.13 Meralgia paresthetica, bilateral lower limbs G57.2 Lesion of femoral nerve G57.20 Lesion of femoral nerve, unspecified lower limb G57.21 Lesion of femoral nerve, right lower limb G57.22 Lesion of femoral nerve, left lower limb G57.23 Lesion of femoral nerve, bilateral lower limbs G57.3 Lesion of lateral popliteal nerve G57.30 Lesion of lateral popliteal nerve, unspecified lower limb G57.31 Lesion of lateral popliteal nerve, right lower limb G57.32 Lesion of lateral popliteal nerve, left lower limb G57.33 Lesion of lateral popliteal nerve, bilateral lower limbs
Search all 70,000+ ICD-10-CM codes →
Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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