Displ Maisonneuve's fx unsp leg, subs for clos fx w malunion

This code signifies a Maisonneuve's fracture, which is a specific type of ankle fracture involving 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. In this instance, the fracture is displaced, meaning the bone fragments are not properly aligned, and has healed incorrectly (malunion). This code is for a subsequent encounter, indicating the patient is receiving follow-up care for this previously treated fracture.

Use this code when documenting follow-up care for a patient who sustained a Maisonneuve's fracture of an unspecified leg, where the fracture was initially displaced and has subsequently healed with a malunion. This would apply to scenarios such as physical therapy for rehabilitation, evaluation of persistent pain or functional limitations due to the malunion, or planning for corrective surgery.

• Ensure documentation clearly specifies "malunion" and that the fracture was initially "displaced."
• Verify that the encounter is for follow-up care, not the initial treatment of the fracture.
• If the laterality (left or right leg) is known, a more specific code should be used.