42 CFR § 410.110
Requirements for coverage of partial hospitalization services by CMHCs
June 11, 2020
Medicare part B covers partial hospitalization services furnished by or under arrangements made by a CMHC if they are provided by a CMHC as defined in §410.2 that has in effect a provider agreement under part 489 of this chapter and if the services are—
(a) Prescribed by a physician and furnished under the general supervision of a physician;
(b) Subject to certification by a physician in accordance with §424.24(e)(1) of this subchapter; and
(c) Furnished under a plan of treatment that meets the requirements of §424.24(e)(2) of this subchapter.
[59 FR 6577, Feb. 11, 1994]