Breakdown (mechanical) of int fix of bone of l low leg, init

This code signifies a mechanical failure of an internal fixation device, such as a plate, screw, or rod, that was surgically implanted to stabilize a fracture in the patient's left lower leg. This breakdown means the device is no longer functioning as intended due to a physical issue with the implant itself, rather than an infection or other biological complication.

Apply this code when documentation clearly indicates a mechanical problem with an internal fixation device in the left tibia or fibula. This includes instances where the device has bent, broken, loosened, or migrated, and the patient is presenting for initial evaluation and management of this specific complication.

• Ensure the documentation specifies "mechanical breakdown" and not another type of complication like infection or malunion.
• Verify the laterality is explicitly stated as "left lower leg."
• Confirm this is the "initial encounter" for the treatment of this specific device breakdown.