Displ commnt fx left patella, subs for clos fx w malunion

This code signifies a complex fracture of the left kneecap where the bone has broken into multiple fragments and is no longer in its proper anatomical alignment. The patient is in a later stage of healing, and the fracture has healed, but in an unsatisfactory position, resulting in a malunion.

This code is appropriate for follow-up encounters where a patient with a previously diagnosed displaced comminuted fracture of the left patella is being treated for a malunion. This includes situations where the malunion is being monitored, or conservative or surgical interventions are being planned or performed to address the improperly healed fracture.

• Ensure documentation clearly states "malunion" and specifies the left patella.
• Verify the fracture was initially displaced and comminuted.
• This code is for subsequent encounters, not the initial treatment of the acute fracture.