Unsp fx unsp femur, subs for opn fx type 3A/B/C w malunion

This code indicates a previously sustained, unspecified fracture of the femur that is now presenting with malunion. The original fracture was an open fracture, classified as type IIIA, IIIB, or IIIC, and the current encounter is for follow-up care related to this malunion.

Use this code when a patient presents for treatment or evaluation of a malunion following an open femoral fracture (type IIIA, IIIB, or IIIC) where the specific location of the fracture on the femur was not documented. This applies to subsequent encounters after the initial treatment of the fracture.

• Ensure documentation clearly specifies "malunion" as the complication of the fracture.
• Verify that the original fracture was an open fracture type IIIA, IIIB, or IIIC.
• This code is for subsequent encounters, not the initial treatment of the fracture or the malunion.