Torus fx lower end of unsp fibula, subs for fx w malunion

This code signifies a torus, or buckle, fracture affecting the distal end of the fibula, where the bone has compressed or buckled rather than completely breaking. The "subsequent encounter" indicates the patient is receiving routine care during the healing phase, and "malunion" specifies that the fracture has healed, but in an abnormal or misaligned position.

This code is appropriate for follow-up visits where a patient is being managed for a previously diagnosed torus fracture of the distal fibula that has healed with some degree of deformity or misalignment. It would be used when the physician is assessing the malunion and planning or providing ongoing care related to this specific complication.

• Ensure documentation clearly states "malunion" and specifies the lower end of the fibula.
• Verify that the encounter is for follow-up care, not initial treatment or active treatment of a nonunion.
• Confirm the fracture type is a torus fracture; other fracture types of the fibula would use different codes.