Displ commnt fx shaft of ulna, unsp arm, 7thP

This code signifies a complex break in the main part of the ulna bone, where the bone has shattered into multiple fragments and the pieces are not properly aligned. This specific code is used when the patient is receiving follow-up care for this type of fracture, and the bone is healing in an incorrect position (malunion), but the skin over the fracture site remains intact. The injury location is not specified to a particular arm.

Apply this code for patients presenting for ongoing treatment of a comminuted ulna shaft fracture that was initially closed, but has since developed a malunion. This would include scenarios such as follow-up appointments for cast changes, physical therapy, or surgical planning to correct the malunion, provided the fracture is still considered closed.

• Ensure documentation clearly states "malunion" and that the fracture was initially closed.
• Verify the encounter is "subsequent" for the fracture, not initial or sequela.
• Do not use if the fracture is open or if the malunion is a long-term complication (sequela) after the fracture has fully healed.