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.
Not to be confused with Paresthesia and Anesthetic. For the medical speciality, see Anesthesiology. For other uses, see Anesthesia (disambiguation). In the practice of medicine (especially surgery and dentistry), anesthesia or anaesthesia is a state of temporary induced loss of sensation or awareness. It may include analgesia (relief from or prevention of pain), paralysis (muscle relaxation), amnesia (loss of memory), or unconsciousness. A patient under the effects of anesthetic drugs is referred to as being anesthetized.