(e) Outlier payments. Additional payments for outliers are not made on an interim basis. The outlier payments are made based on the submission of a discharge bill and represent final payment.
42 CFR § 412.541
General rule. Subject to the exceptions in paragraphs (b) and (c) of this section, long-term care hospitals receive payment under this subpart for inpatient operating costs and capital-related costs for each discharge only following submission of a discharge bill.