42 CFR § 440.240 - Comparability of services for groups.
Except as limited in § 440.250 -
(a) The plan must provide that the services available to any categorically needy beneficiary under the plan are not less in amount, duration, and scope than those services available to a medically needy beneficiary; and
(1) The categorically needy.
(2) A covered medically needy group.