ICD-10 · PDGM grouping
G57 Mononeuropathies of lower limb
All 40 codes in the G57 family, with the PDGM clinical group, comorbidity subgroup and primary-position rule CMS assigns, read from the CMS grouper crosswalk v07.2.26 and the CDC FY2027 code file.
Codes in family
40
Can lead a claim
30
Cannot lead a claim
10
What CMS assigns to G57
30 of the 40 codes group to Neuro Rehabilitation; 10 are assigned no clinical group. None of the 40 is assigned a comorbidity subgroup. 30 of the 40 can lead a claim.
Every code in G57
Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.
| Code | Description | Primary position | Clinical group | Comorbidity subgroup |
|---|---|---|---|---|
| G57.0 Lesion of sciatic nerve | ||||
| G57.00 | Lesion of sciatic nerve, unspecified lower limb | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| G57.01 | Lesion of sciatic nerve, right lower limb | Can lead a claim | B | None |
| G57.02 | Lesion of sciatic nerve, left lower limb | Can lead a claim | B | None |
| G57.03 | Lesion of sciatic nerve, bilateral lower limbs | Can lead a claim | B | None |
| G57.1 Meralgia paresthetica | ||||
| G57.10 | Meralgia paresthetica, unspecified lower limb | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| G57.11 | Meralgia paresthetica, right lower limb | Can lead a claim | B | None |
| G57.12 | Meralgia paresthetica, left lower limb | Can lead a claim | B | None |
| G57.13 | Meralgia paresthetica, bilateral lower limbs | Can lead a claim | B | None |
| G57.2 Lesion of femoral nerve | ||||
| G57.20 | Lesion of femoral nerve, unspecified lower limb | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| G57.21 | Lesion of femoral nerve, right lower limb | Can lead a claim | B | None |
| G57.22 | Lesion of femoral nerve, left lower limb | Can lead a claim | B | None |
| G57.23 | Lesion of femoral nerve, bilateral lower limbs | Can lead a claim | B | None |
| G57.3 Lesion of lateral popliteal nerve | ||||
| G57.30 | Lesion of lateral popliteal nerve, unspecified lower limb | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| G57.31 | Lesion of lateral popliteal nerve, right lower limb | Can lead a claim | B | None |
| G57.32 | Lesion of lateral popliteal nerve, left lower limb | Can lead a claim | B | None |
| G57.33 | Lesion of lateral popliteal nerve, bilateral lower limbs | Can lead a claim | B | None |
| G57.4 Lesion of medial popliteal nerve | ||||
| G57.40 | Lesion of medial popliteal nerve, unspecified lower limb | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| G57.41 | Lesion of medial popliteal nerve, right lower limb | Can lead a claim | B | None |
| G57.42 | Lesion of medial popliteal nerve, left lower limb | Can lead a claim | B | None |
| G57.43 | Lesion of medial popliteal nerve, bilateral lower limbs | Can lead a claim | B | None |
| G57.5 Tarsal tunnel syndrome | ||||
| G57.50 | Tarsal tunnel syndrome, unspecified lower limb | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| G57.51 | Tarsal tunnel syndrome, right lower limb | Can lead a claim | B | None |
| G57.52 | Tarsal tunnel syndrome, left lower limb | Can lead a claim | B | None |
| G57.53 | Tarsal tunnel syndrome, bilateral lower limbs | Can lead a claim | B | None |
| G57.6 Lesion of plantar nerve | ||||
| G57.60 | Lesion of plantar nerve, unspecified lower limb | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| G57.61 | Lesion of plantar nerve, right lower limb | Can lead a claim | B | None |
| G57.62 | Lesion of plantar nerve, left lower limb | Can lead a claim | B | None |
| G57.63 | Lesion of plantar nerve, bilateral lower limbs | Can lead a claim | B | None |
| G57.7 Causalgia of lower limb | ||||
| G57.70 | Causalgia of unspecified lower limb | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| G57.71 | Causalgia of right lower limb | Can lead a claim | B | None |
| G57.72 | Causalgia of left lower limb | Can lead a claim | B | None |
| G57.73 | Causalgia of bilateral lower limbs | Can lead a claim | B | None |
| G57.8 Other specified mononeuropathies of lower limb | ||||
| G57.80 | Other specified mononeuropathies of unspecified lower limb | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| G57.81 | Other specified mononeuropathies of right lower limb | Can lead a claim | B | None |
| G57.82 | Other specified mononeuropathies of left lower limb | Can lead a claim | B | None |
| G57.83 | Other specified mononeuropathies of bilateral lower limbs | Can lead a claim | B | None |
| G57.9 Unspecified mononeuropathy of lower limb | ||||
| G57.90 | Unspecified mononeuropathy of unspecified lower limb | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| G57.91 | Unspecified mononeuropathy of right lower limb | Can lead a claim | B | None |
| G57.92 | Unspecified mononeuropathy of left lower limb | Can lead a claim | B | None |
| G57.93 | Unspecified mononeuropathy of bilateral lower limbs | Can lead a claim | B | None |
Sources: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01, for the clinical group, comorbidity subgroup, code-first conventions and primary-position flags; CDC NCHS ICD-10-CM FY2027 code descriptions for the family title and code wording. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.
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