Displ longitud fx unsp patella, 7thJ

This code signifies a fracture running lengthwise through the kneecap that is no longer in its proper alignment. It specifically applies when the bone has broken through the skin, indicating a severe open fracture (Type IIIA, IIIB, or IIIC), and the healing process is taking longer than expected.

Use this code for follow-up encounters where a patient is receiving ongoing treatment for a previously diagnosed displaced longitudinal patellar fracture that was an open fracture of type IIIA, IIIB, or IIIC, and the physician documents delayed healing. This code is appropriate when the patient is still under active care for the fracture's delayed union or nonunion.

• Requires a seventh character "J" for subsequent encounter with delayed healing.
• Ensure documentation specifies "displaced" and "longitudinal" for the patellar fracture.
• Confirm the original injury was an open fracture classified as Type IIIA, IIIB, or IIIC.