Oth physeal fx lower end of l fibula, subs for fx w nonunion

This code describes a fracture in the growth plate (physis) at the lower end of the left fibula, which is not healing as expected (nonunion). This specific code is used when the patient is receiving follow-up care for this previously diagnosed nonunion.

Use this code for subsequent encounters where a patient is being treated for a nonunion of an "other" type of physeal fracture of the distal left fibula. This includes situations like ongoing management, evaluation for surgical intervention, or monitoring of a failed conservative treatment for the nonunion.

• Ensure documentation clearly specifies "nonunion" and the "subsequent encounter" for this specific fracture.
• Verify the fracture location is the lower end of the left fibula and involves the physis.
• Distinguish from malunion or routine follow-up for a healing fracture.