IDR eligibility, deadlines, and fees.What qualifies a claim, and what disqualifies one.

Federal IDR covers out of network claims protected by the No Surprises Act. In broad terms, that means emergency services, out of network care delivered at an in network facility, and air ambulance services, where the patient is enrolled in a group or individual plan subject to the Act.

A claim is eligible when the No Surprises Act applies, the open negotiation period has run, and no state arbitration law governs the dispute instead. If a state process applies, that pathway controls, and the federal process does not.

Eligibility challenges are routine. In 2024, the non initiating party challenged eligibility in 44 percent of disputes, according to analysis of CMS data. A claim that looks eligible to a billing team can still be knocked out on a technicality.

Resolving eligibility before you draft a submission saves the time you would otherwise spend on a claim that never reaches a determination.

Federal IDR runs on business day deadlines, and missing one can end a dispute regardless of its merits. The sequence below reflects the timing set under the federal regulations.

A missed deadline usually forfeits the step, and the dispute can be dismissed. There is no general grace period built into the federal process, which is why high volume practices benefit from a tracked workflow rather than a spreadsheet and memory.

If you missed the window to initiate on a specific claim, the revenue on that claim is generally lost to the process. The practical fix is forward looking: catch eligible claims at the explanation of benefits stage and start the clock deliberately.

Two fees apply. Each party pays a non refundable administrative fee set by CMS each year. Each party also pays the IDRE's fee, which falls within a CMS approved range that varies for single and batched determinations.

The administrative fee is not returned regardless of outcome. The IDRE fee works differently: the prevailing party's IDRE fee is effectively returned, so the losing party bears the cost of the arbitrator. Because CMS updates these amounts, confirm the current figures in the CMS fee guidance before you file.

The federal rules allow batching of certain similar items and services into one dispute, which can lower the per claim administrative cost. It is tempting to batch aggressively to save on fees.

The tradeoff is at the determination. A batched submission produces a composite offer that cannot map cleanly to any single prior determination, and it tends to perform worse at arbitration. Filing one claim per service keeps each offer tied to comparable prior determinations for that exact code, which is what the arbitrator is weighing.

Sydra files one claim per code for this reason. If a case involves several codes, each becomes its own submission, and each takes under five minutes to prepare.