Nondisp commnt fx unsp patella, 7thM

This code signifies a comminuted fracture of the kneecap that has not shifted from its original position, where the bone has broken into multiple fragments. It specifically indicates that the fracture was initially an open fracture (meaning the skin was broken) of Type I or II, and despite treatment, the bone fragments have failed to heal together (nonunion). This is a subsequent encounter, meaning the patient is receiving ongoing care for this unhealed injury.

Use this code for follow-up visits or admissions where a patient is being treated for a previously diagnosed nondisplaced comminuted patellar fracture that was initially an open fracture (Type I or II) and has now developed nonunion. This would include scenarios such as surgical intervention for the nonunion, cast changes, or evaluation of the nonunion site.

• Ensure documentation clearly specifies "nondisplaced," "comminuted," and "patella" for accurate coding.
• Verify the original injury was an open fracture, specifically Type I or II, and that nonunion is explicitly documented.
• Confirm this is a subsequent encounter for the nonunion, not the initial treatment of the fracture.