Displ commnt fx r patella, 7thN

This code signifies a complex, multi-fragmented break of the right kneecap that is no longer in its proper anatomical alignment. The fracture has failed to heal properly (nonunion) and was initially an open fracture, meaning the bone broke through the skin, classified as a severe type (IIIA, IIIB, or IIIC). This code is used during follow-up care for this specific injury.

Apply this code when documenting ongoing treatment, follow-up visits, or complications related to a previously diagnosed displaced comminuted open fracture (Type IIIA, IIIB, or IIIC) of the right patella that has developed nonunion. This would include scenarios where the patient is undergoing rehabilitation, further surgical intervention for the nonunion, or monitoring the non-healing fracture.

• Ensure documentation clearly specifies "nonunion" and the "subsequent encounter" status.
• Verify the initial open fracture type (IIIA, IIIB, or IIIC) was documented, as this is a specific inclusion criterion.
• Always code laterality (right) and fracture displacement as specified.