Oth fx lower end l femr, subs for opn fx type I/2 w nonunion

This code signifies a fracture located at the lower portion of the left thigh bone, excluding specific condylar or supracondylar types. It indicates that the fracture was initially an open fracture (Type I or II) and has failed to heal properly, requiring ongoing treatment.

Apply this code when documenting follow-up care for a patient with a nonunion of an open fracture (Gustilo Type I or II) of the distal left femur. This is appropriate for encounters where the patient is receiving treatment for the persistent nonunion, such as bone grafting, hardware revision, or continued immobilization.

• Ensure documentation specifies "left" femur and "lower end" to differentiate from other femoral fracture locations.
• Confirm the original fracture was an open fracture (Type I or II) and that nonunion is explicitly documented.
• This "M" seventh character indicates a subsequent encounter for a nonunion, not initial treatment or routine healing.