Oth physl fx low end ulna, right arm, subs for fx w malunion

This code indicates a subsequent encounter for a right-sided fracture of the growth plate (physis) at the lower end of the ulna, which has healed incorrectly (malunion). This specific type of fracture involves the epiphyseal plate, crucial for bone growth in pediatric and adolescent patients.

Use this code when a patient presents for follow-up care of a previously treated physeal fracture of the distal right ulna, and imaging or clinical assessment confirms that the fracture has united in an anatomically incorrect position. This code is appropriate for ongoing management, rehabilitation, or planning for corrective procedures related to the malunion.

• Ensure documentation clearly specifies "right arm" and "malunion" for accurate code assignment.
• Verify that this is a subsequent encounter, not the initial treatment for the fracture.
• Look for documentation of the specific physeal involvement at the lower end of the ulna.