Unsp fx lower end of unsp ulna, subs for clos fx w malunion

This code signifies a follow-up encounter for a previously diagnosed fracture of the lower end of the ulna, where the specific type of fracture was not documented. At this subsequent visit, the fracture is closed, meaning the skin is intact, but has healed improperly, resulting in malunion.

This code is appropriate when a patient presents for ongoing care of an ulnar fracture that has healed in an abnormal position, and the initial fracture type was not specified. It is used after the initial treatment phase, indicating a complication of healing. This code would be assigned when the patient is seen for management of the malunion, such as planning for corrective surgery or physical therapy.

• Ensure documentation clearly states "malunion" and "subsequent encounter" for a closed fracture.
• This code requires a seventh character "P" for subsequent encounter with malunion.
• Do not use this code for nonunion; a different seventh character would be required.