Disp fx of 2nd metatarsal bone, l ft, subs for fx w nonunion

This code signifies a left foot injury involving a displaced fracture of the second metatarsal bone. The fracture has failed to heal properly, indicating a nonunion, and the patient is presenting for follow-up care related to this ongoing issue.

This code is appropriate for subsequent encounters when a patient is receiving treatment for a previously diagnosed displaced second metatarsal fracture of the left foot that has not united. This includes follow-up appointments for ongoing management, evaluation of nonunion, or preparation for further intervention (e.g., surgery).

• Ensure documentation clearly states "nonunion" and specifies the "left" foot and "second" metatarsal.
• Confirm the fracture is explicitly described as "displaced" to support this specific code.
• This code is for subsequent encounters; an initial encounter would use a different 7th character.