Disp fx of med malleolus of r tibia, 7thN

This code signifies a non-healing fracture of the inner ankle bone (medial malleolus) of the right lower leg, where the bone fragments are not properly aligned. This specific nonunion is occurring in an open fracture that was initially classified as Type IIIA, IIIB, or IIIC, indicating significant soft tissue damage and potential contamination.

Apply this code for follow-up encounters where a patient with a previously treated displaced open fracture (Type IIIA, IIIB, or IIIC) of the right medial malleolus is diagnosed with a nonunion. This would include situations where surgical intervention for nonunion is being planned or ongoing, or during monitoring of a nonunion.

• Ensure documentation clearly specifies "nonunion" and the "displaced" nature of the fracture.
• Verify the original open fracture type (IIIA, IIIB, or IIIC) is documented to support this specific code.
• Confirm this is a "subsequent encounter" for the fracture care, not the initial treatment.