ICD-10 Code G57.03 – Lesion of sciatic nerve, bilateral lower limbs (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G57.03 – Lesion of sciatic nerve, bilateral lower limbs
What it is
G57.03 identifies a disorder affecting both sciatic nerves in the lower limbs. It is used when documentation shows bilateral sciatic nerve injury, compression, or other lesion causing lower-extremity nerve dysfunction.
Clinical signs
Typical findings include pain, numbness, tingling, weakness, or reduced sensation along sciatic nerve distribution in both legs. Clinical features vary; refer to documentation.
When to use this code
Use this code when the record clearly states a lesion of the sciatic nerve affecting both lower limbs. It may apply after trauma, compression, or another documented nerve disorder when the provider specifies bilateral involvement. If laterality is not documented, check documentation.
Do not use for
Do not use it for nonspecific low back pain, isolated hip pain, or sciatica without documented sciatic nerve lesion. Do not assume bilateral disease unless the provider says both lower limbs are involved.
Coding tip
Match the code to the provider’s exact laterality wording and avoid coding from symptoms alone.