Disp fx of l ulna styloid pro, 7thN

This code signifies a nonunion of a displaced fracture of the styloid process of the left ulna. It specifically indicates that the initial injury was an open fracture classified as Type IIIA, IIIB, or IIIC, and the patient is now in a subsequent phase of care where the fracture has failed to heal.

Use this code for follow-up encounters when a patient with a previously diagnosed open, displaced fracture of the left ulnar styloid (Gustilo-Anderson Type IIIA, IIIB, or IIIC) is found to have a nonunion. This applies to ongoing management, assessment of nonunion, or planning for further intervention.

• Ensure documentation clearly specifies "nonunion" and the "left" ulna styloid process.
• Verify the original fracture was an "open" fracture and its Gustilo-Anderson classification (IIIA, IIIB, or IIIC).
• This code is for subsequent encounters, not the initial treatment of the fracture.