42 CFR 424.103 - Conditions for payment for emergency services.
(4) In the case of inpatient hospital services, the services are furnished during a period in which the beneficiary could not be safely discharged or transferred to a participating hospital or other institution.
(b)Medical information requirements. A physician (or, if appropriate, the hospital) submits medical information that -
(2) Establishes that all the conditions in paragraph (a) of this section are met; and
(3) Indicates when the emergency ended, which, for inpatient hospital services, is the earliest date on which the beneficiary could be safely discharged or transferred to a participating hospital or other institution.