Unsp fx r patella, subs for opn fx type 3A/B/C w delay heal

This code signifies a fracture of the right kneecap where the specific type of fracture (e.g., transverse, comminuted) is not documented. It indicates that the bone broke through the skin, exposing the bone and surrounding tissues (a severe open fracture), and the healing process is taking longer than expected.

Apply this code when a patient presents for follow-up care of a right patellar fracture that was initially an open fracture of type IIIA, IIIB, or IIIC, and the physician notes delayed healing. This would be used after the initial treatment phase, during ongoing management of the fracture.

• Ensure documentation clearly specifies "delayed healing" for this subsequent encounter.
• Confirm the fracture is on the right patella and was initially an open fracture type IIIA, IIIB, or IIIC.
• Do not use for initial encounters or for fractures that are healing normally.