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

This code signifies a fracture of the first metatarsal bone in the right foot that has shifted out of its normal alignment. Critically, the bone fragments have failed to heal together after a typical healing period, indicating a nonunion. This diagnosis is made during a follow-up visit after the initial treatment.

This code is appropriate for documenting a patient's visit for ongoing management of a right first metatarsal fracture that has been previously treated but is now confirmed to be a nonunion. This would include scenarios where the patient is undergoing further evaluation, conservative treatment, or surgical planning for the nonunion.

• Ensure documentation explicitly states "nonunion" and specifies the right foot and first metatarsal.
• Verify that this is a subsequent encounter, not the initial treatment for the fracture.
• Do not use this code if the fracture is healing normally or if it's a malunion (healed in a deformed position).