Nondisp seg fx shaft of unsp fibula, 7thM

This code signifies a follow-up visit for a patient who previously sustained a fracture of the fibula shaft that broke through the skin (open fracture type I or II), where the fracture involves multiple segments of the bone but is not displaced, and the bone has failed to heal properly. It specifically indicates that the bone ends have not united after a typical healing period.

Use this code for subsequent encounters when a patient with a previously diagnosed open segmental fibular shaft fracture (Type I or II) is being treated for a nonunion. This applies when the fracture fragments are still in their anatomical position, but healing has stalled.

• Ensure documentation clearly states "nonunion" and specifies the fracture as "segmental" and "nondisplaced."
• Verify the original injury was an "open fracture type I or II" to justify the "M" seventh character.
• Do not use for initial encounters or for malunion, which is coded differently.