Oth extrartic fx low end r rad, subs for clos fx w malunion

This code signifies a fracture of the lower end of the right radius, specifically an extraarticular type, meaning it does not involve the joint surface. The fracture has healed in an imperfect alignment (malunion), and the patient is presenting for follow-up care related to this previously treated closed fracture.

This code is appropriate for documenting a patient encounter where a previously treated closed extraarticular fracture of the right distal radius has resulted in malunion. This would include follow-up appointments for assessment of the malunion, planning for corrective procedures, or managing ongoing symptoms related to the malunion.

• Ensure documentation clearly specifies "right radius" and "extraarticular" to support this specific code.
• Verify that the encounter is for a "subsequent encounter" and that the fracture was initially "closed."
• Distinguish from nonunion (S52.551N) or routine follow-up without malunion.