Photo: Andrew Harrer/Bloomberg via Getty ImagesA major health insurance company is backing off of a controversial plan to limit coverage of anesthesia, according to public officials.Why it matters: Anthem Blue Cross Blue Shield recently decided to "no longer pay for anesthesia care if the surgery or procedure goes beyond an arbitrary time limit, regardless of how long the surgical procedure takes," according to the American Society of Anesthesiologists, which opposed the decision.The decision co...