Lesion of sciatic nerve, left lower limb

This code signifies damage or dysfunction of the left sciatic nerve, manifesting as pain, numbness, tingling, or weakness in the left lower extremity. This condition, often referred to as sciatica, results from compression, irritation, or injury to the sciatic nerve.

Apply this code when documentation explicitly states a diagnosis of left-sided sciatic nerve lesion or sciatica affecting the left lower limb. This typically occurs following nerve compression from a herniated disc, piriformis syndrome, trauma, or other etiologies impacting the left sciatic nerve.

• Ensure laterality (left) is clearly documented. If bilateral, use the appropriate bilateral code.
• Do not use this code for unspecified sciatica; seek clarification from the provider if laterality is not specified.
• Consider sequencing this code after a more specific underlying cause (e.g., M54.16 for sciatica due to lumbar disc disorder with radiculopathy, lumbar region) if known and documented.