inpatient day
(2) For purposes of paragraph (1)(A), the term “medicaid inpatient utilization rate” means, for a hospital, a fraction (expressed as a percentage), the numerator of which is the hospital’s number of inpatient days attributable to patients who (for such days) were eligible for medical assistance under a State plan approved under this subchapter in a period (regardless of whether such patients receive medical assistance on a fee-for-service basis or through a managed care entity), and the denominator of which is the total number of the hospital’s inpatient days in that period. In this paragraph, the term “inpatient day” includes each day in which an individual (including a newborn) is an inpatient in the hospital, whether or not the individual is in a specialized ward and whether or not the individual remains in the hospital for lack of suitable placement elsewhere.