Wiki Surgery coding question

[audralynn1979@aol.com]

patient was scheduled for total knee replacement, during surgery they noticed a femur fracture
says intraoperative femur fracture causing conversion to a mega prosthesis,
I'm thinking 27447 with a 22 mod----thoughts?

 

[lexvcarter]

Is this a revision? I only ask because you mentioned a prothesis. Was this previously implanted?