42 CFR § 431.154 - Informal reconsideration for ICFs/IID.
The informal reconsideration must, at a minimum, include -
(a) Written notice to the facility of the denial, termination or nonrenewal and the findings upon which it was based;
(b) A reasonable opportunity for the facility to refute those findings in writing, and
(c) A written affirmation or reversal of the denial, termination, or nonrenewal.