Unsp physl fx lower end of r fibula, subs for fx w nonunion

This code signifies an unspecific growth plate fracture located at the lower end of the right fibula. It is used when the patient is receiving follow-up care for this fracture, and the bone has failed to heal properly, resulting in a nonunion.

Apply this code for subsequent encounters where a patient is being treated for a previously diagnosed, unspecified physeal fracture of the distal right fibula that has not united. This includes situations like ongoing management, evaluation for surgical intervention for nonunion, or conservative treatment for delayed healing that has progressed to nonunion.

• Ensure documentation clearly states "nonunion" for the fracture.
• Verify the encounter is for subsequent care, not the initial treatment.
• Confirm the fracture is of the right fibula's lower end and involves the physis.