Nondisp osteochon fx l patella, subs for clos fx w nonunion

This code describes a fracture of the cartilage and underlying bone of the left kneecap that has not shifted from its original position. The fracture has failed to heal properly, and the patient is presenting for follow-up care related to this nonunion.

Apply this code when a patient with a previously diagnosed nondisplaced osteochondral fracture of the left patella is seen for ongoing management of a documented nonunion. This includes visits for evaluation of nonunion, planning for further treatment (e.g., surgery for nonunion), or monitoring of conservative management for nonunion.

• Ensure documentation explicitly states "nondisplaced" and "osteochondral fracture" of the left patella.
• Confirm the encounter is for "nonunion" and not initial treatment or routine healing.
• Always assign additional codes for any associated complications or treatment procedures.