§ 412.72 Modification of base-year costs.

(a) Bases for modification of base-year costs. Base-year costs as determined under § 412.71(d) may be modified under the following circumstances:

(1) Inadvertent omissions. (i) A hospital that becomes subject to the prospective payment system beginning on or after October 1, 1983 and before November 16, 1983 has until November 15, 1983 to request its intermediary to reestimate its base-period costs to take into account inadvertent omissions in its previous submissions to the intermediary related to changes made by the prospective payment legislation for purposes of estimating the base-period costs.

(ii) The intermediary may also initiate changes to the estimation—

(A) For any reason before the date the hospital becomes subject to prospective payment; and

(B) Before November 16, 1983, for corrections to take into account inadvertent omissions in the hospital's previous submissions related to changes made by the prospective payment legislation for purposes of estimating the base-period costs.

(iii) Such omissions pertain to adjustments to exclude capital-related costs and the direct medical education costs of approved educational activities and to adjustments specified in § 412.71(c).

(iv) The intermediary must notify the provider of any change to the hospital-specific amount as a result of the provider's request within 30 days of receipt of the additional data.