Nondisp trimalleol fx l low leg, 7thN

This code signifies a non-healing trimalleolar fracture of the left lower leg that was initially an open fracture of severe type (IIIA, IIIB, or IIIC). The fracture fragments are currently in their normal anatomical alignment, but the bone has failed to unite after a previous treatment.

Apply this code for follow-up encounters where a patient is being managed for a previously treated, non-displaced trimalleolar fracture of the left lower leg that has developed nonunion. This is specific to cases where the initial injury was a high-energy open fracture type IIIA, IIIB, or IIIC. This code would be used when the patient is undergoing further treatment for the nonunion, such as bone grafting or revision surgery.

• Requires a seventh character "N" for subsequent encounter for nonunion.
• Confirm the laterality (left) and the specific fracture type (trimalleolar, nondisplaced) documented.
• Ensure the original injury was an open fracture type IIIA, IIIB, or IIIC, as this is a specific criterion for this code.