ICD-10 Code G57.41 – Lesion of medial popliteal nerve, right lower limb (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G57.41 – Lesion of medial popliteal nerve, right lower limb
What it is
This code identifies a lesion or disorder affecting the medial popliteal nerve in the right lower limb. Use it when documentation specifies right-sided involvement of this named peripheral nerve.
Clinical signs
Clinical features vary; refer to documentation. Typical findings may include focal nerve pain, numbness, tingling, or weakness in the nerve distribution, with exam or nerve studies supporting a localized neuropathy.
When to use this code
Use G57.41 when the provider documents a lesion, neuropathy, or nerve injury specifically involving the medial popliteal nerve on the right. It is appropriate when the right lower limb is clearly identified and the record does not support a broader or different nerve diagnosis.
Do not use for
Do not use this code for left-sided disease, unspecified lower-limb nerve lesions, or generalized peripheral neuropathy. Check documentation if the affected nerve is named differently or if the diagnosis is not clearly localized.
Coding tip
Code the side and nerve exactly as documented; if the record is unclear, query for laterality and the specific nerve involved.