ICD-10 Code G57.23 – Lesion of femoral nerve, bilateral lower limbs (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G57.23 – Lesion of femoral nerve, bilateral lower limbs
What it is
G57.23 identifies a disorder affecting the femoral nerve on both sides of the lower limbs. Use it when documentation shows bilateral femoral nerve injury, compression, or other lesion causing nerve dysfunction.
Clinical signs
Typical findings may include weakness of hip flexion or knee extension, reduced patellar reflexes, and sensory changes over the anterior thigh or medial leg. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider specifically documents a lesion of the femoral nerve in both lower limbs. It may apply after trauma, surgery, entrapment, or another documented nerve disorder if the bilateral site is clear. If laterality is not stated, check documentation.
Do not use for
Do not use it for isolated unilateral femoral nerve lesions or for nonspecific leg pain without nerve involvement. If the record describes a different nerve, radiculopathy, or neuropathy, choose the more accurate diagnosis.
Coding tip
Confirm both laterality and the word “lesion” in the note before assigning G57.23.