I need to know where to find information on the ability to have two anesthesiologists or two CRNA's bill for the same service on the same patient. This is usually only for a portion of the time and in very urgent situations. I have found where MCR talks about a CRNA and anesthesiologist can bill AA for the same patient but no where for two CRNA's or two anesthesilogists. I can assume that you would have to document the time and why but do not want to just assume. Thank you.