42 C.F.R. § 512.434
(a) General. Subject to the limitations on review in paragraph (c) of this section, an IOTA participant may submit a targeted review request for one or more calculations made, and issued by, CMS within the preliminary performance assessment and payment calculations, if either of the following occur:
(b) Requirements. The request must satisfy the following criteria:
(c) Limitations on review.
(1) CMS does not provide IOTA participants the ability to dispute the policy or methodology, as the targeted review process would be limited to the dispute of calculations. CMS would not consider targeted review requests regarding, without limitation, the following:
(d) Targeted review process. The IOTA participant must submit a request for targeted review in accordance with paragraphs (a) through (c) of this section. The process for a targeted review is as follows:
(1) Initial and final assessments. Upon receipt of a targeted review request from an IOTA participant CMS conducts an initial and final assessment as follows:
(i) Initial assessment.
(B) If the request is not compliant with paragraphs (a) through (c) of this section or requires additional information:
(1) CMS follows up with the IOTA participant to request additional information in a form and manner as specified by CMS.
(2) The IOTA participant must respond within 30 days of CMS's request for additional information in a form and manner as specified by CMS.
(3) An IOTA participant's non-responsiveness to the request for additional information from CMS may result in the closure of the targeted review request.
(ii) Final assessment.
(B) If a calculation error is found as a result of an IOTA participant's targeted review request—
(1) CMS—
(i) Notifies the IOTA participant within 30 days of any findings in a form and manner as specified by CMS; and
(ii) Resolves and corrects any resulting error or discrepancy in the amount of the upside risk payment or downside risk payment in a time and manner as determined by CMS.
(2) CMS' correction of any error or discrepancy may delay the effective date of an IOTA participant's upside risk payments or downside risk payments.