Breakdown (mechanical) of int fix of right humerus, subs

This code signifies a mechanical failure of an internal fixation device, such as a plate, screw, or rod, that was surgically implanted in the right humerus. This breakdown occurs after the initial treatment phase, indicating a complication that requires further medical attention.

Apply this code when a patient presents with symptoms or imaging evidence confirming a mechanical failure (e.g., bending, breaking, loosening) of an internal fixation device in their right humerus, and they are in the healing phase following the initial surgery. This is appropriate for follow-up visits where the complication is being managed.

• Ensure documentation clearly specifies "right humerus" and "mechanical breakdown" of the device.
• Verify the encounter is "subsequent" and not the initial treatment for the fracture or the initial complication.
• Always code an external cause code (e.g., W00-Y38) if the breakdown was due to an external event.