On April 14, 2022, the Centers for Medicare & Medicaid Services (CMS) issued new guidance on the Independent Dispute Resolution (IDR) process, created under the No Surprises Act (NSA) to provide a mechanism for payers and providers to resolve disputes as to appropriate payment amounts for certain out-of-network claims. In addition, the Departments of Health and Human Services, Labor and the Treasury launched two online portals– one to host the IDR process for providers and payers and one to host the patient-provider dispute resolution process for self-pay and uninsured patients. This new guidance replaces earlier instruction from the agency on how the IDR process would operate and what the independent arbitrator was required to consider. The prior guidance was withdrawn after a successful legal challenge to the interim final rule implementing the No Surprises Act provisions on the IDR process, specifically with respect to the weight to be given to the Qualifying Payment Amount (QPA).