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

This code signifies a left foot injury involving a displaced break in the first metatarsal bone. The patient is in a subsequent phase of care, and the fracture has healed improperly, resulting in a malunion. This indicates a previous fracture that has united in a deformed position.

Use this code when documenting follow-up care for a patient who previously sustained a displaced fracture of the left first metatarsal and is now presenting with complications related to malunion. This would apply during clinic visits for assessment of the malunion, planning for corrective surgery, or post-operative care following malunion repair.

• Ensure documentation clearly states "left foot" and "first metatarsal" to support laterality and specificity.
• The "P" in the seventh character indicates a subsequent encounter for a fracture with malunion; verify the patient's stage of healing.
• Differentiate from nonunion (failure to heal) or routine follow-up for a healing fracture without complications.