Nondisp fx of r ulna styloid pro, 7thN

This code signifies a persistent failure of a previously treated open fracture of the right ulna styloid process to heal, specifically when the initial injury was a severe open fracture (Type IIIA, IIIB, or IIIC). Despite prior intervention, the bone fragments at the styloid process remain in their anatomical position but have not fused.

This code is appropriate for follow-up encounters where a patient is being managed for a nonunion of a right ulna styloid process fracture that was initially an open fracture of a severe type. This includes situations where further surgical intervention for the nonunion is being planned or conservative management for the nonunion is ongoing.

• Ensure documentation clearly specifies "nonunion" and the initial open fracture type (IIIA, IIIB, or IIIC).
• Confirm the fracture is of the right ulna styloid process and remains nondisplaced.
• This code is for subsequent encounters; an initial encounter for the nonunion would use a different seventh character.