Nondisp fx of lateral malleolus of r fibula, 7thN

This code describes a fracture of the outer ankle bone (lateral malleolus) of the right fibula that is not displaced, meaning the bone fragments are still in their normal alignment. It specifically indicates a subsequent encounter for an open fracture (where the bone broke through the skin) of a severe type (IIIA, IIIB, or IIIC) that has failed to heal properly (nonunion).

Use this code when documenting follow-up care for a patient who previously sustained a severe open fracture of the right lateral malleolus, and imaging or clinical assessment confirms that the fracture has not united. This applies to ongoing management, treatment of complications related to the nonunion, or preparations for further surgical intervention.

• Ensure documentation clearly specifies "right" fibula and "lateral malleolus."
• Verify the original fracture was an open fracture type IIIA, IIIB, or IIIC, and that nonunion is explicitly stated.
• This code is for subsequent encounters; an initial encounter for the nonunion would use a different code.