Nondisp transverse fx unsp patella, 7thN

This code signifies a transverse fracture of the kneecap that is not displaced, meaning the bone fragments are still in their normal alignment. The fracture was initially an open fracture of a severe type (IIIA, IIIB, or IIIC), and the current encounter is for ongoing management because the fracture has failed to heal properly (nonunion).

Use this code for follow-up encounters where a patient with a previously diagnosed severe open transverse patella fracture (non-displaced) is being treated for nonunion. This would include situations like continued casting, bracing, physical therapy, or surgical planning for the nonunion.

• Ensure documentation clearly specifies "nonunion" and the original open fracture type (IIIA, IIIB, or IIIC).
• Verify the fracture is indeed "nondisplaced" and "transverse" to the patella.
• This code is for subsequent encounters, not the initial treatment of the fracture.