Displ transverse fx unsp patella, 7thJ

This code signifies a displaced fracture of the kneecap, specifically involving the transverse plane, where the bone fragments are no longer in their normal alignment. It indicates that the fracture is an open type (IIIA, IIIB, or IIIC), meaning there is a break in the skin and soft tissue communicating with the fracture, and the healing process is taking longer than expected. This code is used for follow-up care after the initial treatment of the injury.

Apply this code for patients presenting for subsequent encounters (e.g., follow-up appointments, wound care, cast changes) for a previously diagnosed open transverse patella fracture. This is appropriate when the fracture is still healing and the healing process is complicated by a delay. It would be used after the initial acute care for the injury.

• Ensure documentation specifies a "subsequent encounter" and clearly indicates delayed healing for an open transverse patella fracture.
• Verify the open fracture type (IIIA, IIIB, or IIIC) is documented, even though the code is for an unspecified patella.
• Do not use for initial treatment of the fracture or for routine healing without documented delay.