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The federal IDR process

How the No Surprises Act IDR process works, step by step.

The independent dispute resolution process is a fixed sequence of statutory clocks. Here is the full path from an underpaid claim to a paid award, and where disputes are usually lost.

  1. Day 0

    Payer sends initial payment or denial

    For an eligible out-of-network claim, the plan must pay or deny within 30 days of receiving a clean claim. The amount is usually at or near the qualifying payment amount (QPA) — the plan's median contracted rate for that service in that market.

  2. ≤ 30 days

    Provider opens negotiation

    Either party may start a 30-business-day open negotiation period by sending a compliant notice within 30 business days of the initial payment. This is where deadline #1 is missed most often.

  3. 30 days

    Open negotiation period

    The parties may agree on a rate. If they do, the claim is settled and no IDR fees are incurred. Many payers do not meaningfully engage.

  4. 4 days after

    Initiate federal IDR

    If negotiation fails, the dispute must be initiated in the federal portal within 4 business days of the negotiation period ending. Similar items can be batched. Deadline #2.

  5. ~5–10 days

    Select the certified IDR entity

    The initiating party proposes an IDR entity; the other side can object. If no agreement, the Departments assign one. Both parties pay an administrative fee; the losing party ultimately bears the entity fee.

  6. Eligibility

    Eligibility review

    The IDR entity confirms the dispute is eligible — right service type, right plan type, not covered by a state process, cooling-off period observed. A large share of disputes are challenged here.

  7. 10 days

    Submit offers

    Each party submits one payment offer with supporting information. Baseball-style: the arbiter must select one of the two offers, not split the difference.

  8. 30 days

    Payment determination

    The IDR entity selects the offer that best represents the value of the service, considering the QPA plus additional factors like training, complexity, market share, and prior contracts. Determinations are binding.

  9. 30 days

    Payer pays the award

    The plan must pay within 30 calendar days. Late payment is common and enforceable only through CMS complaints and penalties, so follow-through matters. A 90-day cooling-off period applies before disputing the same service with the same party.

Where disputes are lost: missed open-negotiation notices, missed 4-day initiation windows, filing claims that belong in a state process, batching errors, unpaid fees, and offers priced without data. Almost none are lost on the merits.

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