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

This code describes a situation where a patient has a displaced fracture involving both bone and cartilage of the kneecap, and the fracture has failed to heal properly after an initial treatment. This specific encounter is for ongoing management of the nonunion, and the fracture is currently closed.

Use this code for follow-up visits where a patient is being treated for a previously diagnosed osteochondral patellar fracture that has not united, and the fracture remains closed. This would include scenarios such as monitoring the nonunion, planning for further surgical intervention, or managing complications related to the nonunion.

• Ensure documentation specifies "nonunion" and that the fracture is "closed."
• Verify that the encounter is a "subsequent encounter" for the fracture.
• Confirm the fracture involves both bone and cartilage (osteochondral) of the patella.