Displ transverse fx l patella, subs for clos fx w delay heal

This code signifies a left patellar fracture that extends across the bone (transverse) and is no longer in its anatomical alignment (displaced). The patient is in a later stage of care for this injury, specifically when the fracture is not healing at the expected rate, and the skin over the fracture remains intact.

Apply this code for follow-up encounters where a patient with a previously diagnosed displaced transverse fracture of the left patella is being monitored for delayed union. This is appropriate when the fracture has not yet fully healed, and the treatment plan involves continued conservative management or evaluation for intervention due to slow healing.

• Ensure documentation specifies "delayed healing" for the left patella fracture.
• Confirm the fracture is explicitly described as "displaced" and "transverse."
• Verify the encounter is subsequent to the initial treatment and the fracture is closed.