California insurers are discriminating against women by charging them more for individual health insurance than men, the city of San Francisco maintained in a lawsuit filed against the state regulators who govern them. The suit contends that Insurance Commissioner Steve Poizner and Cindy Ehnes, director of the Department of Managed Health Care, approved a system that allows the insurance companies to impose "gender rating" when pricing policies. The ratings resulted in women paying as much as 39% more for coverage then men.