The insurance industry is fighting the Obama administration to overturn a new regulation it says could jeopardize health plans for millions of people.

The industry is lobbying Congress to take action against a proposed Obama administration regulation that would target fixed indemnity plans, which Congress has exempted from federal insurance requirements. The plans pay out a specific amount of money for a per-service, per-day benefit and are intended to offer a supplement for people in high-deductible plans, as they are cheap and pay out a fixed amount.