Displ transverse fx shaft of unsp fibula, 7thM

This code signifies a non-healing, displaced fracture of the fibula shaft, specifically a transverse break, that was initially an open fracture (Type I or II). The "subsequent encounter" indicates the patient is receiving ongoing care for this complication, not the initial treatment.

Apply this code when documenting follow-up care for a patient with a previously treated open transverse fibula shaft fracture that has failed to unite. This includes scenarios where surgical intervention for nonunion is being planned or performed, or during ongoing conservative management of the nonunion.

• Ensure documentation clearly states "nonunion" and specifies the fracture as "displaced" and "transverse."
• Verify the original injury was an "open fracture type I or II" to justify the 7th character "M."
• Do not use for initial treatment of the fracture or for malunion; a different 7th character would be required.