Self-insured group health plan sponsors are in the middle of one of the biggest operational overhauls to the No Surprises Act‘s dispute resolution process since the law took effect.
The federal government has finalized a series of changes to how payment disputes between health plans and out-of-network providers get resolved, and unlike most compliance deadlines, this isn’t a single date to circle on the calendar. Instead, it’s a rolling set of changes stretching from mid-2026 into 2027, and each one lands on a different part of your plan’s claims and vendor operations.
Key takeaways
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The Departments of Health and Human Services, Labor, and the Treasury finalized sweeping changes to the federal independent dispute resolution (IDR) process on May 28, 2026, aimed at reducing backlogs and improving communication between health plans and providers.
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The federal IDR administrative fee dropped 87%, from $115 to $15 per party, for disputes initiated on or after June 11, 2026, which is likely to increase dispute volume.
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New batching rules, allowing up to 50 items or services per disputed claim instead of 25, apply to disputes with open negotiation periods beginning on or after November 1, 2026.
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Standardized claim adjustment reason codes and remittance advice remark codes become required for items and services furnished on or after January 1, 2027.
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Self-insured group health plans will be required to register in a new federal IDR registry and receive a registration number, though this requirement isn’t expected to take effect until Spring 2027 or later.
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Because several provisions depend on the rollout of a new federal IDR Gateway platform, plan sponsors should expect ongoing implementation notices from the Departments through 2027 rather than a single compliance deadline.
What the No Surprises Act’s IDR Process Actually Does
The No Surprises Act protects patients from unexpected bills for certain out-of-network emergency care and other services provided in situations where they had little or no ability to choose an in-network provider. Instead of letting providers bill patients directly for the difference, the law requires the payment dispute to be worked out between the health plan and the provider. That process starts with a 30-business-day open negotiation period, and if the two sides can’t agree, it moves to federal IDR, where a certified IDR entity picks between the plan’s and the provider’s final payment offers.
That system has been running since 2022, but it hasn’t run smoothly. A significant backlog of disputes built up, and both health plans and providers have reported ongoing friction points, from unclear eligibility rules to slow information exchange.
Why the Federal Government Is Overhauling IDR Operations Now
According to the Centers for Medicare & Medicaid Services (CMS), the federal agency responsible for administering the IDR process, the Departments finalized the Federal Independent Dispute Resolution Operations final rule on May 28, 2026, with the goal of streamlining communication between payers, providers, and certified IDR entities and clarifying timelines that had proven confusing in practice.
The changes touch nearly every stage of the process: how much information a plan has to share upfront, how many claims can be bundled into a single dispute, what codes plans have to use on remittance advice, and even how plans themselves get identified in the system.
The Administrative Fee Just Dropped by 87%
The most immediate change is financial. For federal IDR disputes initiated on or after June 11, 2026, the administrative fee each party pays dropped from $115 to $15, according to CMS. That’s a meaningful shift for plan sponsors to plan around: a lower fee removes one of the biggest disincentives providers previously had against disputing lower-dollar claims, and CMS itself has acknowledged this could increase the overall volume of disputes plans need to manage.
More Information Changes Hands Earlier: Expanded QPA Disclosures
As of August 3, 2026, the effective date of the final rule, plans and issuers are required to share more information with providers at the time of an initial payment or denial, including expanded details about the qualifying payment amount and the open negotiation process itself.
The intent, according to CMS, is to help providers determine earlier whether a claim actually qualifies for the IDR process, which should reduce the number of disputes that get filed and later thrown out on eligibility grounds. If your plan’s claims administrator hasn’t already updated these disclosures, this is a requirement that should already be in place.
Batching Rules Are Changing on November 1
One of the more operationally significant changes involves batching, the ability to combine multiple claims into a single dispute rather than filing separately for each one. The final rule raises the cap on batched items from 25 to 50 and narrows the criteria for which claims can be grouped together, generally limiting batches to items tied to a single patient encounter, billed under matching procedure codes, or falling within specific medical specialty categories.
According to CMS’s own implementation guidance, all batching provisions become applicable for disputes with open negotiation periods beginning on or after November 1, 2026. Plan sponsors should confirm with their TPA or claims administrator that IDR procedures are ready to reflect these revised batching rules well before that date.
Standardized Claims Codes Take Effect January 1, 2027
Starting with items and services furnished on or after January 1, 2027, plans and issuers must use specific claim adjustment reason codes (CARCs) and remittance advice remark codes (RARCs) to indicate whether a claim is subject to the No Surprises Act and eligible for the IDR process.
CMS issued detailed technical guidance on the exact codes to use on July 17, 2026. This requirement is squarely a claims-system issue, so it’s worth confirming with your TPA or claims administrator now that their systems will be ready well ahead of the January deadline, since it involves coding logic that typically requires lead time to implement and test.
Self-Insured Plans Will Need to Register for the First Time
For the first time, self-insured group health plans will be required to register directly in a federal IDR system and receive a registration number, according to CMS. The goal is to give providers and certified IDR entities a reliable way to identify a plan and its sponsor, something that has reportedly been a persistent source of delay and confusion, particularly when a third-party administrator (TPA) manages multiple plans under similar names.
This requirement is tied to the rollout of new technology and isn’t expected to become applicable until Spring 2027 at the earliest, with registration generally due within 90 business days after the Departments announce that the registry functionality is live. It’s still worth flagging to your leadership now, since it’s a new, direct compliance obligation for the plan sponsor rather than something a vendor can fully absorb on your behalf.
The Bigger Shift: Moving to the IDR Gateway
Underlying nearly all of these changes is a shift away from the current single-use web forms toward a new federal IDR Gateway platform, which CMS expects to roll out in phases starting in the latter half of 2026 and continuing into Spring 2027.
Provisions covering open negotiation notices, IDR initiation, and certified IDR entity selection will each become applicable 90 calendar days after CMS announces that the specific Gateway functionality supporting them is available, which means plan sponsors should expect a series of implementation notices over the next year rather than one clean cutover date.
What Self-Insured Plan Sponsors Should Do Now
Given the staggered rollout, the most useful thing a plan sponsor can do right now is assign clear ownership for each requirement rather than treating this as one project. That means confirming that the August 3, 2026 disclosure requirements are already live with your TPA, getting written confirmation that your claims administrator’s systems will support the November 1 batching rules, checking in on CARC and RARC coding readiness well ahead of the January 1, 2027 deadline, and clarifying now, in your service agreements, who is responsible for plan registration, open negotiation responses, and IDR submissions once those requirements take effect. None of this needs to happen at once, but each piece needs an owner before its applicable date arrives.
Frequently Asked Questions
What is the federal IDR process under the No Surprises Act?
It’s the structured process health plans and out-of-network providers use to resolve payment disputes for certain surprise bills. It starts with a 30-business-day open negotiation period, and if the parties can’t agree, a certified IDR entity selects between their final competing payment offers.
How much did the federal IDR administrative fee change in 2026?
The fee dropped from $115 to $15 per party per dispute, an 87% reduction, for disputes initiated on or after June 11, 2026, according to the Centers for Medicare & Medicaid Services.
When do the new IDR batching rules take effect?
All batching provisions, including the increase from 25 to 50 items per batched dispute, apply to disputes with open negotiation periods beginning on or after November 1, 2026.
Do self-insured group health plans have to register for the IDR process?
Yes, but not yet. Self-insured plans will be required to register in a new federal IDR registry and receive a registration number, but CMS doesn’t expect this requirement to become applicable until Spring 2027 at the earliest.
What should a self-insured employer do to prepare for these IDR changes?
Confirm with your TPA and claims administrator which requirements are already implemented, particularly the August 3, 2026 disclosure rules, and get clear commitments on readiness for the November 1, 2026 batching changes and the January 1, 2027 coding requirements. It’s also worth clarifying who, between your plan and your vendors, is responsible for registration and IDR submissions once those requirements take effect.
Why Partner With SandStone
Compliance changes like this rarely show up on a single renewal date, which is exactly why they’re easy to miss. SandStone Insurance Partners’ Employee and Group Benefits team works directly with employers to make sure requirements like these are addressed well before each applicable date. Contact your SandStone advisor today to review how these IDR changes affect your specific plan.
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