Nondisp commnt fx r patella, 7thM

This code signifies a right kneecap fracture that has broken into multiple pieces but remains in its anatomical position. It specifically indicates that the initial injury was an open fracture (skin broken, exposing bone) of type I or II, and the bone fragments are now failing to heal together properly.

Apply this code when a patient with a previously diagnosed open comminuted fracture of the right patella (Type I or II) presents for ongoing treatment of a nonunion. This would include follow-up visits, cast changes, or preparations for further surgical intervention due to the lack of healing.

• Ensure documentation clearly states "nondisplaced," "comminuted," and "right patella."
• Verify the original injury was an "open fracture type I or II" and that "nonunion" is explicitly documented.
• This "M" seventh character indicates a subsequent encounter for a nonunion, not the initial treatment or routine healing.