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U.S. Dept. of Health & Human Services
First Level of Appeal: Redetermination by a Medicare Contractor
Guidance for any party to the initial claim determination that is dissatisfied with the decision may request a redetermination. A redetermination is a review of the claim by Medicare Administrative Contractor (MAC) personnel not involved in the initial claim determination.
Issued by: Centers for Medicare & Medicaid Services (CMS)
Issue Date: November 05, 2019
Any party to the initial claim determination that is dissatisfied with the decision may request a redetermination. A redetermination is a review of the claim by Medicare Administrative Contractor (MAC) personnel not involved in the initial claim determination.
An initial determination decision is communicated on the beneficiary's Medicare Summary Notice (MSN), and on the provider's, physician's and supplier's Remittance Advice (RA). The appellant (the individual filing the appeal) has 120 days from the date of receipt of the initial claim determination to file a redetermination request. The notice of initial determination is presumed to be received 5 calendar days after the date of the notice, unless there is evidence to the contrary.
A redetermination must be requested in writing. There are 2 ways that a party can request a redetermination:
The appellant should include with their redetermination request any and all documentation that supports their argument against the previous decision. A minimum monetary threshold on the claim is not required to request a redetermination. The redetermination request must be sent to the MAC that made the initial claim determination (this information is on the MSN and the RA). Check the MAC website for more information on how to file appeals. Most MACs allow electronic submission of appeals through their website. The contact information for each MAC can be found using the following link: /Medicare/Medicare-Contracting/Medicare-Administrative-Contractors/Who-are-the-MACs#MapsandLists .
Note: MACs do not process claim corrections involving minor errors and omissions through the appeals process. For information on how to request correction of minor errors and omissions, see the Medicare Learning Network (MLN) Matters Reopening article in the "Downloads" section below, or refer to the Medicare Claims Processing Manual IOM 100-4 Chapter 34 Reopening and Revision of Claim Determinations and Decisions (PDF).
A MAC may dismiss a request for a redetermination for various reasons, some of which may be:
Parties to MAC dismissals have 2 options to dispute the dismissal:
Request QIC Review of the Dismissal | Request MAC to Vacate the Dismissal | |
Filing Timeframe | 60 days after dismissal receipt | 6 months after date of dismissal notice |
Review Criteria | Is dismissal correct? | Is there good and sufficient cause for dismissal? |
Course of Action | Vacate dismissal and remand case to MAC for redetermination | Vacate dismissal and issue redetermination decision |
Subject to Further Review? | NO | NO |
NOTE: A QIC’s review of a contractor’s dismissal of a redetermination request is binding and not subject to any further review - see 42 CFR 405.974(b)(3).
Generally, the MAC will send its decision (either in a letter, an RA, and/or an MSN) to all parties within 60 days of receipt of the request for redetermination. The decision will contain detailed information on further appeals rights, where applicable.
These reports summarize and highlight some of the key data on redeterminations from January 1, 2016 through December 31, 2023. To view the Appeals Fact Sheets, click on the link in the "Downloads" section below.
HHS is committed to making its websites and documents accessible to the widest possible audience, including individuals with disabilities. We are in the process of retroactively making some documents accessible. If you need assistance accessing an accessible version of this document, please reach out to the guidance@hhs.gov.
DISCLAIMER: The contents of this database lack the force and effect of law, except as authorized by law (including Medicare Advantage Rate Announcements and Advance Notices) or as specifically incorporated into a contract. The Department may not cite, use, or rely on any guidance that is not posted on the guidance repository, except to establish historical facts.
Date Published: 12/31/2020