42 CFR § 409.26 - Transfer agreement hospital services.
(a) Services furnished by an intern or a resident-in-training. Medicare pays for medical services that are furnished by an intern or a resident-in-training (under a hospital teaching program approved in accordance with the provisions of § 409.15) as posthospital SNF care, if the intern or resident is in -
(b) Other diagnostic or therapeutic services. Medicare pays for other diagnostic or therapeutic services as posthospital SNF care if they are provided -