Torus fx upper end of unsp fibula, subs for fx w nonunion

This code signifies a torus, or buckle, fracture affecting the superior portion of the fibula, where the bone has compressed but not completely broken through. It indicates that the patient is presenting for follow-up care for this specific fracture, and there is evidence that the bone is failing to heal properly (nonunion).

Apply this code when documenting subsequent encounters for a patient with a previously diagnosed torus fracture of the proximal fibula who is experiencing delayed or failed bone healing. This would include clinic visits for cast changes, physical therapy, or imaging to assess the nonunion.

• Ensure documentation clearly states "nonunion" and specifies the "upper end of fibula."
• Verify the encounter is for follow-up care, not the initial treatment.
• Confirm the fracture type is a "torus" or "buckle" fracture.