Displ Maisonneuve's fx left leg, subs for clos fx w nonunion

This code signifies a specific type of spiral fracture of the proximal fibula, often associated with an ankle injury, on the patient's left leg. The fracture fragments are not properly aligned, and the bone has failed to heal after a previous attempt.

Apply this code when documenting ongoing management of a left Maisonneuve's fracture that has not united, and the fracture fragments remain displaced. This is appropriate for follow-up visits where treatment for the nonunion is being addressed, such as casting changes, physical therapy, or preparation for surgical intervention.

• Ensure documentation specifies "left leg" and "displaced" for accurate code assignment.
• Confirm the encounter is for a "subsequent" visit and the fracture is "closed" with "nonunion."
• Do not use this code for initial treatment or for a fracture that has healed.