Washington Court of Appeals this month revived a legal fight against health insurers’ blanket refusals to cover weight loss medications like Ozempic and Wegovy. In a decision published May 4, the court ruled that insurance plans that prohibit certain types of obesity treatment could potentially violate state antidiscrimination law. Over the past few years, weight loss medications known as GLP-1 drugs have exploded in popularity. The drugs are approved by the Food and Drug Administration for the treatment of obesity among other conditions. But they’re also expensive, and many health plans don’t cover them if prescribed solely for weight loss use. As a result, people prescribed GLP-1 drugs for obesity often have to pay hundreds of dollars per month out of pocket. Those who can’t often turn to compounded versions of the drugs, or go without. Last week’s ruling tees up a potential legal battle that could eventually strike down blanket bans on weight loss drug coverage in Washington.…