Don’t panic about House v. Burwell.

The Affordable Care Act obligates the federal government to reimburse health plans for cutting their low-income customers a break on their out-of-pocket payments. Whether or not there’s an appropriation for the cost-sharing reductions, that statutory obligation is enforceable in court—specifically, in the Court of Federal Claims.

Health plans that get stiffed can therefore sue the federal government for the cost-sharing reductions. Winning those cases should be easy: the plans will just have to show that they’re owed money under the ACA. And here’s the kicker: Congress has permanently appropriated the money to pay court judgments, even if it hasn’t appropriated money for the cost-sharing reductions.

The right question isn’t whether health plans will get paid. It’s when.