Nondisp fx of lateral malleolus of r fibula, 7thM

This code signifies a right ankle fracture involving the lateral malleolus, specifically a nondisplaced break of the fibula, which was initially an open fracture (Type I or II). The "subsequent encounter" indicates the patient is receiving active treatment for the fracture, but it is not healing as expected, leading to nonunion.

Apply this code when documenting ongoing treatment for a patient with a previously open, nondisplaced right lateral malleolus fracture that has failed to unite. This would be used during follow-up visits, cast changes, or surgical interventions aimed at promoting healing in a nonunion scenario.

• Ensure documentation clearly states "nonunion" and specifies the initial open nature of the fracture.
• Verify the laterality (right) and the specific bone involved (fibula, lateral malleolus).
• Confirm the fracture is nondisplaced; displaced fractures have different codes.