Lesion of sciatic nerve, bilateral lower limbs

This code signifies damage or dysfunction of the sciatic nerve affecting both lower limbs. It describes a neurological condition characterized by pain, numbness, tingling, or weakness radiating along the path of the sciatic nerve on both sides of the body.

Apply this code when documentation clearly indicates bilateral involvement of the sciatic nerve, such as in cases of bilateral sciatica or piriformis syndrome affecting both legs. Supporting documentation should specify the laterality as bilateral, not just "sciatica" or "sciatic nerve lesion" without further clarification.

• Ensure documentation explicitly states "bilateral" involvement of the sciatic nerve.
• Do not use this code if only one lower limb is affected; instead, select the appropriate unilateral code (G57.01 or G57.02).
• Investigate the underlying cause of the sciatic nerve lesion (e.g., disc herniation, spinal stenosis) and code it as a primary diagnosis if known and documented.