Oth physl fx upper end of unsp tibia, subs for fx w nonunion

This code describes a fracture involving the growth plate (physis) at the top of the tibia that is not healing properly. It indicates that the patient is presenting for follow-up care for this specific fracture, and the bone fragments have failed to unite after a reasonable healing period.

Use this code for a patient encounter where the documentation clearly states a nonunion of a physeal fracture of the proximal tibia, and the specific location (e.g., medial, lateral) is not documented. This applies to subsequent visits for ongoing management of the nonunion, such as evaluation for surgical intervention or continued conservative treatment.

• Ensure documentation specifies "nonunion" and "subsequent encounter" for this specific fracture.
• If the exact location of the physeal fracture (e.g., medial, lateral) is known, a more specific code should be used.
• Always sequence this code after the primary reason for the encounter, if applicable.