Disp fx of med malleolus of unsp tibia, 7thN

This code signifies a non-healing fracture of the inner ankle bone (medial malleolus) in an unspecified tibia, which was initially an open fracture with significant soft tissue damage (Type IIIA, IIIB, or IIIC). The fracture fragments are not properly aligned. This code is used when the patient is receiving follow-up care for this specific, complicated nonunion.

Use this code for a patient presenting for ongoing treatment of a previously diagnosed open medial malleolus fracture that has failed to heal (nonunion) and is displaced. This applies to situations such as follow-up appointments for surgical intervention, cast changes, or monitoring of the nonunion. It specifically indicates a subsequent encounter for this complex fracture type.

• Ensure documentation clearly specifies "nonunion" and "displaced" for the medial malleolus fracture.
• Verify the initial open fracture was classified as Type IIIA, IIIB, or IIIC to accurately assign this code.
• This code is for subsequent encounters; an initial encounter for this specific nonunion would use a different code.