Unsp fx low end r ulna, 7thR

This code signifies a subsequent encounter for an open fracture of the distal right ulna, specifically of Gustilo-Anderson type IIIA, IIIB, or IIIC, that has healed in a misaligned position (malunion). It indicates ongoing management of a previously treated severe open fracture with an unfavorable healing outcome affecting the lower end of the right forearm bone.

Apply this code for patients presenting with complications of a prior severe open right distal ulna fracture, where the bone has united but with significant angulation or rotation. This is appropriate for follow-up visits, physical therapy, or further surgical planning related to the malunion of the original open fracture.

• Ensure documentation clearly specifies "malunion" and the "subsequent encounter" status.
• Verify the original fracture was an open Gustilo-Anderson type IIIA, IIIB, or IIIC.
• Do not use for nonunion (failure to heal) or for initial fracture treatment.