Oth fx left femur, subs for opn fx type I/2 w nonunion

This code signifies a fracture of the left femur, excluding those of the neck, trochanteric, or subtrochanteric regions, that has failed to heal properly. Specifically, it indicates that the initial injury was an open fracture of Gustilo type I or II, and the patient is now presenting for follow-up care related to the nonunion.

Apply this code when a patient with a previously documented open fracture (Type I or II) of the left femoral shaft or condyle, excluding the neck and trochanteric areas, is being treated for a nonunion. This would include scenarios where surgical intervention or other treatments are being performed to address the failed bone healing.

• Ensure documentation clearly specifies "nonunion" and the "subsequent encounter" for the fracture.
• Verify the original fracture was an open fracture, Gustilo Type I or II, of the left femur (excluding neck/trochanteric).
• Do not use for initial encounters or for malunion; a separate code exists for malunion.