It depends on whether the two procedures were done on the same wart, or not. If it was the same wart, you can't bill both a destruction code and a shave code, either the wart is destroyed, or it is shaved. If it was two different warts, and one was shaved and one was destroyed, then you would need the 59 modifier. You may still need to send in notes to prove that it was two separate warts, though.