Displ commnt fx l patella, 7thN

This code signifies a complex, displaced comminuted fracture of the left kneecap that has not healed properly (nonunion). It specifically applies to an open fracture, meaning the bone broke through the skin, and is further classified as a Type IIIA, IIIB, or IIIC open fracture, indicating significant soft tissue damage. This code is used for encounters following the initial treatment of the fracture.

Use this code when documenting a patient presenting for follow-up care of a previously treated open comminuted patellar fracture on the left side, where the fracture has failed to unite. This would include scenarios like surgical revisions for nonunion, ongoing wound care for the open fracture, or evaluation of the nonunion status.

• Ensure documentation clearly specifies "nonunion" and the "subsequent encounter" status.
• Verify the laterality (left patella) and the specific open fracture type (IIIA, IIIB, or IIIC).
• Do not use this code for initial treatment or for malunion; a different code would be appropriate for those scenarios.