Resource
Federal IDR Timeline and Deadlines
A careful guide to major Federal IDR stages and the need to verify current extensions and phased rules.
Core sequence
The usual sequence is initial payment or denial, open negotiation, initiation, certified IDR entity selection, offer submission, determination, and payment. CMS currently describes a 30-business-day negotiation and initiation within 4 business days after it ends, subject to extensions and transition rules.
Do not calculate in isolation
Business-day rules, federal notices, extenuating-circumstance extensions, portal changes, and the applicable version of the regulations can change a due date.