ICD-10 Code G57.2 – Lesion of femoral nerve (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G57.2 – Lesion of femoral nerve
What it is
G57.2 identifies a disorder of the femoral nerve, usually involving injury, compression, or dysfunction. Use it when documentation shows femoral nerve involvement rather than a more general lower-extremity neuropathy.
Clinical signs
Typical findings include weakness of hip flexion or knee extension, reduced patellar reflex, and sensory changes over the anterior thigh or medial leg. Clinical features vary; refer to documentation.
When to use this code
Use G57.2 when the provider specifically documents lesion, neuropathy, or palsy of the femoral nerve. It also fits cases where symptoms are traced to femoral nerve compression or trauma, and the record does not support a more specific cause.
Do not use for
Do not use this code for nonspecific leg pain, lumbar radiculopathy, or generalized peripheral neuropathy without femoral nerve involvement. Check documentation if the cause is another nerve, root, or systemic disorder.
Coding tip
Code the femoral nerve lesion only when the record names that nerve; otherwise, query for clarification.