Neither administrative nor judicial review is available for controversies about the following matters:
(a)
The determination of the requirement, or the proportional amount, of any budget neutrality adjustment in the prospective payment rates.
(b)
The establishment of—
(1)
Diagnosis related groups (DRGs);
(2)
The methodology for the classification of inpatient discharges within the DRGs; or
(3)
Appropriate weighting factors that reflect the relative hospital resources used with respect to discharge within each DRG.
[49 FR 322, Jan. 1, 1984]