§ 433.56 Classes of health care services and providers defined.
(a) For purposes of this subpart, each of the following will be considered as a separate class of health care items or services:
(1) Inpatient hospital services;
(2) Outpatient hospital services;
(3) Nursing facility services (other than services of intermediate care facilities for individuals with intellectual disabilities);
(4) Intermediate care facility services for individuals with intellectual disabilities, and similar services furnished by community-based residences for individuals with intellectual disabilities, under a waiver under section 1915(c) of the Act, in a State in which, as of December 24, 1992, at least 85 percent of such facilities were classified as ICF/IIDs prior to the grant of the waiver;