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

This code signifies a left kneecap fracture that runs horizontally across the bone, where the bone fragments remain in their normal anatomical alignment. The "subsequent encounter" indicates that the patient is receiving follow-up care for this fracture, and the "nonunion" specifies that the fracture has failed to heal completely after the expected healing period, despite the fracture being treated non-surgically (closed fracture).

Apply this code when documenting ongoing management of a previously diagnosed nondisplaced transverse fracture of the left patella that has not healed. This would be used for office visits, imaging studies, or other interventions aimed at addressing the nonunion, such as bone stimulation or consideration of surgical intervention.

• Ensure documentation clearly states "nonunion" and specifies the "left" patella.
• Verify that the fracture was initially treated as a "closed" fracture.
• Confirm this is a "subsequent encounter" for ongoing care, not the initial treatment or a sequela.