Displ trimalleol fx r low leg, subs for clos fx w nonunion

This code signifies a complex ankle fracture involving all three malleoli (medial, lateral, and posterior) of the right lower leg, where the bone fragments are not properly aligned. The patient is in a later stage of care for this injury, and the fracture has failed to heal adequately, indicating a nonunion.

Apply this code when documenting follow-up care for a patient with a previously diagnosed right trimalleolar fracture that was initially closed but has subsequently developed a nonunion. This would be used for encounters addressing the ongoing management of the nonunion, such as discussions about surgical intervention, cast changes, or monitoring healing progress.

• Ensure documentation clearly specifies "right" lower leg and "trimalleolar" fracture.
• Confirm the fracture was initially "closed" and the current encounter is for "nonunion" in a "subsequent" phase of care.
• Do not use for initial treatment or for open fractures.