Disp fx of 1st metatarsal bone, l ft, subs for fx w nonunion

This code signifies a fracture of the first metatarsal bone in the left foot that has shifted out of its normal alignment. The "K" seventh character indicates that the patient is receiving active treatment for a nonunion of this fracture, meaning the bone is failing to heal properly.

Apply this code when documenting ongoing care for a patient with a previously diagnosed displaced fracture of the left first metatarsal, specifically when the physician is addressing the complication of nonunion. This includes scenarios such as surgical intervention for nonunion, bone grafting procedures, or continued conservative management aimed at promoting healing of the nonunion.

• Ensure documentation clearly specifies "left foot" and "first metatarsal" to support this specific code.
• The "K" seventh character is crucial and indicates active treatment for nonunion, not routine follow-up.
• Verify that the fracture was initially documented as "displaced" to accurately use this code.