Oth fracture of unsp lower leg, subs for clos fx w malunion

This code signifies a fracture of the lower leg, excluding the ankle or foot, where the specific bone involved is not documented. The fracture is closed, meaning the skin remains intact, and it is currently healing with a malunion, indicating the bone fragments have united in a deformed or misaligned position. This code is used for follow-up care after the initial treatment of the fracture.

Use this code for patients presenting for ongoing management of a previously treated lower leg fracture (excluding ankle/foot) that has healed incorrectly. This applies to situations where the specific bone (e.g., tibia, fibula) is not identified in the medical record. It is appropriate for office visits, physical therapy, or other follow-up care related to the malunion.

• Ensure documentation clearly states "malunion" and "subsequent encounter" for a closed fracture.
• Only use when the specific lower leg bone involved is not specified in the medical record.
• Pair with external cause codes (e.g., V00-Y99) if the cause of the injury is relevant and documented.