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

This code signifies a specific type of fracture involving the right leg, characterized by a spiral fracture of the proximal fibula with an associated ankle injury (often medial malleolus fracture or deltoid ligament rupture). The fracture fragments are not in their anatomical alignment, and the bone has failed to heal after a previous treatment attempt.

Apply this code when documenting follow-up care for a patient with a right Maisonneuve's fracture that was initially treated non-surgically or surgically, but the fracture has not united. This includes situations where the patient is undergoing further conservative management or being evaluated for surgical intervention due to the nonunion.

• Ensure documentation clearly states "nonunion" and specifies the "right leg" and "displaced" nature of the Maisonneuve's fracture.
• Verify this is a subsequent encounter for the fracture, not the initial treatment.
• Confirm the fracture is closed; if open, a different code would be required.