Nondisp commnt fx unsp patella, subs for clos fx w nonunion

This code describes a comminuted fracture of the kneecap that is not displaced, meaning the bone fragments are still in their anatomical position. The "subsequent encounter" indicates the patient is receiving follow-up care for this fracture, and "nonunion" signifies that the bone has failed to heal properly after a typical healing period.

This code is appropriate for documenting ongoing treatment for a patient whose comminuted patellar fracture has not united. This includes scenarios where the patient is undergoing conservative management for the nonunion, or is being evaluated for surgical intervention to address the delayed or failed healing.

• Ensure documentation clearly states "nonunion" as the reason for the subsequent encounter.
• Verify the fracture is specifically noted as "comminuted" and "nondisplaced."
• Do not use this code for initial fracture treatment or for malunion (healing in an incorrect position).