Answers / After the window
What happens after open negotiation
Open negotiation ends one of three ways: the parties settle at an agreed amount, the provider initiates federal IDR within 4 business days of the window closing, or the claim is abandoned. Filing leads to baseball-style arbitration where providers won 85.8 percent of published decisions at typical awards around 4.7 times the qualifying payment amount.
Ending one: settlement
Any agreement inside the 30 business day window ends the dispute: the payer pays the agreed amount and no arbitration happens. Settlements cluster near the deadline, because the payer's alternative is a forum with an 85.8 percent provider win rate and both sides know it. Take settlements that clear what the published record suggests an arbitrator would award, and decline the ones priced to exploit a provider who looks unlikely to file.
Ending two: federal IDR, inside 4 business days
If the window closes without a deal, the Notice of IDR Initiation is due in the federal portal within 4 business days. This is the shortest and most-missed deadline in the No Surprises Act. From there every step has a deadline: 3 business days to agree on a certified IDR entity or CMS assigns one, a $15 administrative fee per party plus the entity's refundable deposit of a few hundred dollars, one offer per side within 10 business days of selection, a binding decision within 30, and payment due 30 calendar days later. Claims against the same payer for the same or similar services within a 30 business day window can go in as one batched dispute.
Ending three: abandonment
Claims die here two ways, and only one is a decision. The deliberate version is rational when the claim is small, unbatchable, and the payment already sits near what the record says arbitrators award. The accidental version, the window closing while nobody owned the filing decision, is pure loss: the claim had survived eligibility, the notice, and the negotiation, and expired four days from the finish line. Groups that measure their IDR program usually find abandonment, not arbitration losses, is where the money went.
Deciding in advance
The 4 business day window is too short for deliberation, so the decision has to precede the deadline: before the window closes, every disputed claim should carry a precomputed answer, the settlement floor you would take and the filing plan if the payer stays under it. That is a data problem, what do arbitrators award for this service against this payer, and the published record answers it. Lido IDR prices those floors from the record and files the ones that clear them, for a flat fee per arbitration.
Never lose a claim at the deadline
Lido IDR precomputes the settle-or-file answer for every disputed claim and files inside the 4 business day window, for a flat fee per arbitration. Talk to an IDR specialist.