Unsp fx low end l ulna, 7thR

This code describes a situation where a patient has an unspecified fracture of the lower end of the left ulna that was an open fracture of type IIIA, IIIB, or IIIC, and is now presenting for follow-up care due to malunion. Malunion indicates that the bone has healed in an unsatisfactory position, potentially leading to functional impairment.

Use this code for a patient presenting for a follow-up visit after an initial open fracture of the distal left ulna (types IIIA, IIIB, or IIIC) where the fracture has healed, but in an abnormal alignment. This code is appropriate when the malunion is the primary focus of the current encounter, such as for evaluation of corrective surgery or ongoing management of the malunion's effects.

• Ensure the documentation clearly specifies "malunion" as the complication of the healed fracture.
• Verify that the initial fracture was an open fracture of type IIIA, IIIB, or IIIC.
• This code is for subsequent encounters; do not use for the initial treatment of the fracture.