Displ osteochon fx left patella, subs for clos fx w nonunion

This code signifies a fracture involving both bone and cartilage of the left kneecap, which has shifted from its normal position. The patient is currently receiving care for this fracture, which has failed to heal properly, and the skin over the fracture remains intact.

This code is appropriate for follow-up encounters where a patient with a previously diagnosed displaced osteochondral fracture of the left patella is being treated for a nonunion. This includes situations where the patient is undergoing conservative management, cast changes, or preparing for surgical intervention due to the nonunion.

• Ensure documentation clearly states "left patella" and "displaced osteochondral fracture."
• Verify that the encounter is for follow-up care and explicitly mentions "nonunion" of a closed fracture.
• Do not use for initial encounters or for fractures that have healed or are healing normally.