G57.9
Header — not billableUnspecified mononeuropathy of lower limb
The ICD-10 code for unspecified mononeuropathy of lower limb is G57.9.
G57.9 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 4 more specific codes below.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •This code describes an unspecified presentation. If the medical record documents a more specific detail (e.g. laterality, type, or affected site), a more specific sibling code should be used instead — see Related codes below.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- G57.0Lesion of sciatic nervenon-billable header
- G57.1Meralgia parestheticanon-billable header
- G57.2Lesion of femoral nervenon-billable header
- G57.3Lesion of lateral popliteal nervenon-billable header
- G57.4Lesion of medial popliteal nervenon-billable header
- G57.5Tarsal tunnel syndromenon-billable header
- G57.6Lesion of plantar nervenon-billable header
- G57.7Causalgia of lower limbnon-billable header
- G57.8Other specified mononeuropathies of lower limbnon-billable header
- G57.9Unspecified mononeuropathy of lower limbnon-billable header