How do I know if a claim goes to state or federal IDR?

Start with the plan's funding. Self-funded employer plans are governed by ERISA and route to the federal process regardless of state. Fully-insured plans are regulated by the state, so if the state has its own specified surprise billing process covering that claim type, the state process generally applies instead of federal IDR. Fully-insured claims in states without a specified process go federal.

Which states have their own surprise billing arbitration process?

Roughly half the states have some form of their own law, with Texas and Florida among the best known examples for arbitration-style processes covering their fully-insured markets. Coverage varies by state: some reach only emergency services, some reach certain specialties or settings, and timelines and fee structures differ from federal IDR. The same group routinely runs both processes side by side, split by plan funding.

Can state and federal claims be batched together?

No. A batch exists inside one process. State-track and federal-track claims follow different rules, deadlines, and forums, which is one more reason claim-by-claim routing has to happen before batching decisions are made.

Answers / State vs federal IDR

State vs federal IDR: which process applies to your claim?

Follow the plan's funding. Self-funded employer plans are governed by ERISA, which states cannot reach, so their claims route to federal IDR no matter where you practice. Fully-insured plans are state-regulated, so if your state has its own specified surprise billing process that covers the claim type, the claim generally routes to the state process instead. Fully-insured claims in states without a specified process go federal. Most groups of any size end up running both tracks at once, split claim by claim.

This is the most consequential routing decision in out-of-network revenue, and it happens before any dispute is filed. Get it wrong and you file in the wrong forum, burn a deadline in the right one, or leave a claim on a track with worse economics than the one it could have taken.

Why funding, not geography, decides it

The same employer, the same payer logo on the card, the same procedure in the same building can produce claims on two different tracks. What matters is who bears the insurance risk. When an employer self-funds and the insurer merely administers, the plan lives under ERISA, federal law overrides state insurance regulation, and the No Surprises Act's federal IDR process is the remedy. When the plan is fully insured, the state regulates it, and states that built their own surprise billing processes, Texas and Florida being prominent examples, send qualifying fully-insured claims through their own arbitration rather than the federal one.

The practical tell is often on the member ID card or the remittance: self-funded plans frequently carry administrative services language, and payers code funding status in eligibility responses. It is knowable claim by claim, but only if something in your workflow actually asks the question on every out-of-network remittance.

Why the track changes your strategy

The two processes are cousins, not twins. Deadlines differ: the federal clock gives 30 business days to initiate open negotiation, while each state sets its own windows. Fees differ, and so do refund rules. Benchmarks differ: federal arbiters anchor on offers relative to the qualifying payment amount, while states define their own reference points. Batching differs, and a batch can only exist inside one process, so batching decisions come after routing, never before. Even the decision style can differ, though many states copied the federal baseball-style format where the arbiter picks one side's number.

None of this is a reason to prefer one track. The track is not chosen, it is determined, and the job is to route each claim correctly and then play each forum well. Groups that treat everything as federal quietly forfeit their fully-insured book in specified-process states. Groups that assume their state law covers everything quietly forfeit their self-funded book, which for most commercial populations is the bigger half.

Where the numbers come from

Federal process mechanics come from the No Surprises Act rules and CMS guidance. Federal dispute outcomes, 3.39 million disputes from 2023 through 2025, are analyzed at idrexplorer.com. State process details vary by state and change; verify the current rules for yours before relying on any summary, including this one.

Not sure how your book splits?

The free NSA audit looks at your states and payer mix and shows which track your volume likely rides, and what the federal side has been paying for your specialty. Or get a flat fee quote.