Nondisp transverse fx l patella, 7thR

This code describes a left kneecap fracture that runs horizontally across the bone, where the bone fragments are still in their normal anatomical position. It specifically indicates that this is a follow-up encounter for a severe open fracture (where the bone broke through the skin) that has healed in an abnormal alignment.

This code is used when a patient presents for ongoing care, such as physical therapy, follow-up imaging, or evaluation of function, after having previously sustained a severe open transverse fracture of the left patella. The key is that the initial fracture was open (Type IIIA, IIIB, or IIIC) and has now healed with a malunion.

• Ensure documentation clearly states "nondisplaced transverse fracture of left patella" and specifies "subsequent encounter."
• Verify the original injury was an open fracture classified as Type IIIA, IIIB, or IIIC, and that malunion is documented.
• This code requires an external cause code (V00-Y99) to describe the circumstances of the injury, if not previously reported.