G57 — Mononeuropathies of lower limb
Is G57 billable?
No — G57 is a non-billable header code. G57 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 40 billable codes beneath G57.
Billable codes under this header
- G57.00Lesion of sciatic nerve, unspecified lower limb
- G57.01Lesion of sciatic nerve, right lower limb
- G57.02Lesion of sciatic nerve, left lower limb
- G57.03Lesion of sciatic nerve, bilateral lower limbs
- G57.10Meralgia paresthetica, unspecified lower limb
- G57.11Meralgia paresthetica, right lower limb
- G57.12Meralgia paresthetica, left lower limb
- G57.13Meralgia paresthetica, bilateral lower limbs
- G57.20Lesion of femoral nerve, unspecified lower limb
- G57.21Lesion of femoral nerve, right lower limb
- G57.22Lesion of femoral nerve, left lower limb
- G57.23Lesion of femoral nerve, bilateral lower limbs
- G57.30Lesion of lateral popliteal nerve, unspecified lower limb
- G57.31Lesion of lateral popliteal nerve, right lower limb
- G57.32Lesion of lateral popliteal nerve, left lower limb
- G57.33Lesion of lateral popliteal nerve, bilateral lower limbs
- G57.40Lesion of medial popliteal nerve, unspecified lower limb
- G57.41Lesion of medial popliteal nerve, right lower limb
- G57.42Lesion of medial popliteal nerve, left lower limb
- G57.43Lesion of medial popliteal nerve, bilateral lower limbs
- G57.50Tarsal tunnel syndrome, unspecified lower limb
- G57.51Tarsal tunnel syndrome, right lower limb
- G57.52Tarsal tunnel syndrome, left lower limb
- G57.53Tarsal tunnel syndrome, bilateral lower limbs
- G57.60Lesion of plantar nerve, unspecified lower limb
- G57.61Lesion of plantar nerve, right lower limb
- G57.62Lesion of plantar nerve, left lower limb
- G57.63Lesion of plantar nerve, bilateral lower limbs
- G57.70Causalgia of unspecified lower limb
- G57.71Causalgia of right lower limb
- G57.72Causalgia of left lower limb
- G57.73Causalgia of bilateral lower limbs
- G57.80Other specified mononeuropathies of unspecified lower limb
- G57.81Other specified mononeuropathies of right lower limb
- G57.82Other specified mononeuropathies of left lower limb
- G57.83Other specified mononeuropathies of bilateral lower limbs
- G57.90Unspecified mononeuropathy of unspecified lower limb
- G57.91Unspecified mononeuropathy of right lower limb
- G57.92Unspecified mononeuropathy of left lower limb
- G57.93Unspecified mononeuropathy of bilateral lower limbs
G57 at a glance
| Code | G57 |
|---|---|
| Description | Mononeuropathies of lower limb |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together
The conditions below can never be reported together with G57 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- current traumatic nerve disorder - see nerve injury by body region
Excludes1 — never code together — inherited from G50-G59
The conditions below can never be reported together with G57 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes2 — not included here — inherited from Chapter 6
The conditions below are not part of G57, but a patient may have both at the same time. When documentation supports it, G57 and the excluded code may both be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
What codes fall under G57? (10)
- G57.0Lesion of sciatic nervenot billable
- G57.1Meralgia parestheticanot billable
- G57.2Lesion of femoral nervenot billable
- G57.3Lesion of lateral popliteal nervenot billable
- G57.4Lesion of medial popliteal nervenot billable
- G57.5Tarsal tunnel syndromenot billable
- G57.6Lesion of plantar nervenot billable
- G57.7Causalgia of lower limbnot billable
- G57.8Other specified mononeuropathies of lower limbnot billable
- G57.9Unspecified mononeuropathy of lower limbnot billable
How long has G57 existed?
G57 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
Which codes are confused with G57?
ICD-10-CM declares these codes mutually exclusive with G57 — exactly one of each pair can be correct for a given encounter.