Torus fx lower end of unsp tibia, subs for fx w nonunion

This code signifies a torus, or buckle, fracture affecting the lower portion of the tibia, where the bone cortex has buckled but not completely broken. The "subsequent encounter" indicates that the patient is receiving follow-up care for this fracture, and the "nonunion" specifies that the fracture has failed to heal properly.

This code is appropriate for encounters where a patient with a previously diagnosed torus fracture of the distal tibia is being treated for complications related to the fracture not mending as expected. This could include clinic visits for assessment, imaging, or planning for further intervention due to the nonunion.

• Ensure documentation clearly states "nonunion" for the torus fracture of the distal tibia.
• Verify that the encounter is for follow-up care, not the initial treatment of the fracture.
• Confirm the fracture location is the lower end of the tibia; avoid using for other tibial fracture sites.