Displ commnt fx right patella, subs for clos fx w nonunion

This code signifies a right kneecap fracture that has broken into multiple pieces and the bone fragments are not in their normal anatomical alignment. It specifically indicates that the fracture has failed to heal after a period of time, and the patient is receiving follow-up care for this unhealed, closed injury.

This code is appropriate for subsequent encounters when a patient with a previously diagnosed displaced comminuted fracture of the right patella presents for ongoing treatment of a nonunion. This includes scenarios such as cast changes, physical therapy, or evaluation for surgical intervention due to the nonunion, provided the skin over the fracture remains intact.

• Ensure documentation clearly states "nonunion" and specifies the right patella.
• Verify the fracture was initially closed; if open, a different code series would apply.
• Confirm the "subsequent encounter" status, indicating ongoing care after the initial treatment phase.