Oth physl fx upper end rad, left arm, subs for fx w nonunion

This code signifies a fracture of the growth plate (physis) at the upper end of the radius bone in the left arm, which is not healing properly (nonunion). It indicates that the patient is presenting for follow-up care of this specific fracture complication, not the initial injury.

Use this code for subsequent encounters when a patient with a previously diagnosed physeal fracture of the proximal left radius is being treated for a confirmed nonunion. This would include visits for ongoing management, surgical intervention for nonunion, or evaluation of treatment effectiveness for the nonunion.

• Ensure documentation clearly specifies "nonunion" as the complication of the fracture.
• Verify the fracture location is the "upper end of the radius" and the laterality is "left arm."
• This code is for a "subsequent encounter," meaning it's not the initial treatment for the acute fracture.