Nondisp Maisonneuve's fx l leg, subs for clos fx w nonunion

This code signifies a Maisonneuve's fracture of the left leg, specifically one that is nondisplaced and has not healed properly (nonunion). A Maisonneuve's fracture involves a spiral fracture of the proximal fibula with an associated injury to the deltoid ligament and/or medial malleolus, and disruption of the tibiofibular syndesmosis.

Use this code for follow-up encounters where a patient is being treated for a previously diagnosed, nondisplaced Maisonneuve's fracture of the left leg that has failed to unite. This applies when the fracture is still being managed non-surgically (closed treatment) and nonunion has been confirmed.

• Ensure documentation clearly states "nondisplaced," "Maisonneuve's fracture," "left leg," "nonunion," and "subsequent encounter."
• Do not use for initial encounters or for fractures that are healing normally.
• Verify the laterality (left leg) is accurately documented.