42 CFR § 456.129 - Description of methods and criteria: Initial continued stay review date; close professional scrutiny; length of stay modification.
The UR plan must describe -
(a) The methods and criteria, including norms if used, that the committee uses to assign the initial continued stay review date under § 456.128.
(b) The methods that the committee uses to select categories of admission to receive close professional scrutiny under § 456.123(b); and
(c) The methods that the committee uses to modify an approved length of stay when the beneficiary's condition or treatment schedule changes.