42 C.F.R. § 422.2610
(b) Content of the request.
(c) CMS rebuttal. CMS may file a rebuttal to the MA organization's hearing official review request.
(d) Conducting a review. A CMS-designated hearing official conducts the hearing on the record.
(2) In all cases, the hearing official's review is limited to information that meets one or more of the following: