Nondisp bimalleol fx l low leg, 7thN

This code signifies a non-displaced fracture involving both the medial and lateral malleoli of the left lower leg. It specifically indicates that the fracture was an open fracture (meaning the skin was broken) of a severe type (IIIA, IIIB, or IIIC) and has failed to heal properly, resulting in nonunion.

This code is appropriate for follow-up encounters when a patient with a previously diagnosed and treated open bimalleolar fracture of the left lower leg (types IIIA, IIIB, or IIIC) is presenting with evidence of nonunion. This would include situations where surgical intervention or other treatments are being considered or performed to address the nonunion.

• Ensure documentation clearly specifies "nondisplaced" and "bimalleolar" for the left lower leg.
• Verify the original open fracture type was IIIA, IIIB, or IIIC, and that nonunion is explicitly documented.
• This code is for subsequent encounters; an initial encounter for this specific injury would use a different code.