1. Create the account
Who: filer of record
- A group using a third-party administrator only needs that administrator to sign up
| Rule | Open negotiation started before Nov 1, 2026 | Started on or after Nov 1, 2026 |
|---|---|---|
| Line items per batched dispute | Prior limit | 50 qualified IDR items or services |
| Cooling-off after a batched determination | 90 calendar days | 30 business days |
| Cooling-off, single and bundled disputes | 90 calendar days | 90 calendar days |
| What may be batched | Existing definition | Same patient, same or consecutive dates, same claim form; or the same service code across patients |
| Dates of service in one batch | Within 30 business days (web form rule since July 1, 2025) | Within 30 business days |
| Enforcement | Manual | Notice of IDR Initiation form validates line counts and timeliness (CMS, October 2) [2] |
Three disputes, three fees. Staff time per dispute, not the $15 fee, is now the constraint.
Who: filer of record
When: before Nov 13
What: four forms
Deadline: Jan 15, 2027
Full structure: the NSA IDR Gateway operating manual.
The administrative fee is $15 per party per dispute from June 11, 2026, down from $115 [3]. For services furnished from January 1, 2027, plans must put specified remark codes on every out-of-network remit [4].
| RARC | Circumstance | Federal IDR eligible? |
|---|---|---|
| N877 | Initial NSA payment; recognized amount is the lesser of QPA or billed charge | Yes after open negotiation |
| N876 | Notice of denial of payment under the NSA | Yes after open negotiation |
| N871, N872 | Initial or final payment calculated under a specified state law | No per the plan |
| N944 | Denial where cost sharing follows a specified state law or All-Payer Model | No per the plan |
One in six closures fails eligibility, mostly on the calendar [5]. Code map: NSA remark codes for ER groups.
A new ER and hospitalist client's first four weeks: 93.3 percent of claims confirmed received, 45 of 46 remittance denials caused by enrollment, not coding. The same reports are what any ER group should demand from a billing partner.
For batched disputes whose open negotiation period begins on or after November 1, 2026, per CMS's August 7, 2026 timeline guide; the Notice of IDR Initiation form enforces it from that date.
30 business days after a payment determination for batched disputes started on or after November 1, 2026. Earlier batches and all single and bundled disputes keep 90 calendar days.
No. CMS states that parties using a third-party administrator only need that administrator to sign up. Confirm in writing before November 13, 2026.
Checked October 25, 2026. Rules change; confirm against the source before relying on them.
We tag your out-of-network ER inventory by pathway, re-cut the batches under the 50-line cap and hand you the tracker.