I am an award-winning journalist and a New York Times best selling author. My latest book is Newton's Football: The Science Behind America's Game, published by Ballantine in November 2013. My other books include The Billion Dollar Game: Behind the Scenes at the Super Bowl and Clapton's Guitar: Watching Wayne Henderson Build the Perfect Instrument.
Note: Do not use these HCPCS modiï¬ers if the provider of service is a Qualiï¬ ed Nonphysician Anesthetist. 1  or AA. â¢ AA : Anesthesia service personally performed by the anesthesiologist. â¢ QY: Medical direction of one Qualiï¬ed Nonphysician Anesthetist by an anesthesiologist.
Anesthesia Definitions. This document defines terms associated with the direction and supervision of eligible certified registered nurse anesthetists (CRNA) by anesthesiologists and surgeons. Anesthesia procedures that are personally performed by either an anesthesiologist or CRNA. Medical Direction of Anesthesia Services. Medical direction occurs when an anesthesiologist is involved in two, three or four concurrent anesthesia procedures or a single anesthesia procedure with a qualified anesthetist. For each anesthesia procedure, the anesthesiologist must do the following seven services: 1  Perform a pre-anesthetic examination and evaluation; 2  Prescribe the anesthesia plan; 3  Personally participate in the most demanding procedures of the anesthesia plan including, if applicable, induction and emergence;