Nondisp fx of lateral malleolus of unsp fibula, 7thR

This code signifies a nondisplaced fracture of the lateral malleolus, which is the bony prominence on the outside of the ankle, when the patient is seen for follow-up care. Specifically, it indicates that the initial injury was an open fracture of a severe type (IIIA, IIIB, or IIIC) and that the bone is healing in an unsatisfactory position (malunion). The laterality of the fibula is not specified.

This code is appropriate for subsequent encounters when a patient with a previously diagnosed nondisplaced open lateral malleolar fracture (Type IIIA, IIIB, or IIIC) is presenting for ongoing management of a malunion. This could include visits for monitoring, planning for corrective surgery, or managing complications related to the malunion.

• Ensure documentation clearly specifies "nondisplaced" and "malunion" for the lateral malleolus.
• Verify that the initial injury was an open fracture classified as Type IIIA, IIIB, or IIIC.
• Confirm this is a subsequent encounter, not the initial treatment of the fracture.