ICD-10 Code G57.0 – Lesion of sciatic nerve (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G57.0 – Lesion of sciatic nerve
What it is
G57.0 identifies a disorder affecting the sciatic nerve, which can cause pain, weakness, numbness, or other nerve-related symptoms along the back of the leg. Use it when documentation supports a sciatic nerve lesion rather than a generalized back problem.
Clinical signs
Typical findings include radiating pain from the buttock down the leg, sensory changes, or motor weakness in a sciatic distribution. Clinical features vary; refer to documentation.
When to use this code
Use G57.0 when the provider documents lesion, injury, or neuropathic involvement of the sciatic nerve. It may apply when symptoms are attributed to the nerve itself and not to a more specific spinal or musculoskeletal diagnosis. Check documentation if the cause is unclear.
Do not use for
Do not use this code for nonspecific low back pain, sciatica without documented sciatic nerve lesion, or conditions better coded to a confirmed spinal root disorder. If the record names another primary cause, code that instead.
Coding tip
Query for laterality, cause, and whether the provider means true sciatic nerve lesion versus radiculopathy.