42 C.F.R. § 424.15 Requirements for inpatient CAH services.
Title 42 - Public Health
(a) Content of certification. Medicare Part A pays for inpatient CAH services only if a physician certifies that the individual may reasonably be expected to be discharged or transferred to a hospital within 96 hours after admission to the CAH. (b) Timing of certification. Certification is required no later than 1 day before the date on which the claim for payment for the inpatient CAH services is submitted. [58 FR 30671, May 26, 1993, as amended at 60 FR 45850, Sept. 1, 1995; 62 FR 46035, 46037, Aug. 29, 1997]
Title 42: Public Health
PART 424—CONDITIONS FOR MEDICARE PAYMENT
Subpart B—Certification and Plan of Treatment Requirements
§ 424.15 Requirements for inpatient CAH services.

