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 vs anaesthesia. Anesthesia is the total or partial loss of sensation, especially of pain, through the use of gas, injection or hypnosis before a medical procedure. Local anesthesia blocks pain while the patient is still conscious, general anesthesia blocks pain through the loss of consciousness. Anesthesia may also refer to the total or partial loss of sensation, especially pain, as a result of disease, or may be used metaphorically.