Injury of other nerves at lower leg level, unsp leg, sequela

This code signifies a long-term or late effect resulting from an injury to a peripheral nerve in the lower leg, excluding those of the ankle and foot. The specific nerve involved is not identified, and the laterality of the injury is also unknown. This diagnosis indicates that the initial nerve damage has resolved, but the patient continues to experience residual symptoms or complications directly attributable to that past injury.

Apply this code when documentation clearly indicates a sequela (e.g., chronic pain, weakness, numbness, or altered sensation) stemming from a previous, unspecified nerve injury in the lower leg. This is appropriate for follow-up encounters where the acute injury has healed, but ongoing issues related to the nerve damage persist. It is also used when the specific nerve affected is not documented, and the affected leg is not specified.

• Always ensure the documentation explicitly states "sequela" or describes a chronic condition directly resulting from a past injury.
• Avoid using this code for acute injuries; instead, select an appropriate acute injury code.
• If the specific nerve or laterality is known, a more precise code from the S84.8- series should be chosen.