Number of inpatients in a hospital facility during a specific time.

Medical facility, other than psychiatric, which primarily provides diagnostic, therapeutic (surgical and nonsurgical), and rehabilitation services by or under the supervision of physicians to patients admitted for a variety of medical conditions.

Formal request for payment (bill) sent to the insurance company listing inpatient services with dollar amounts incurred by an insured.

Amount of money that is subtracted from the amount payable by Medicare Part A for inpatient hospital services furnished to a beneficiary during a spell of illness.

Period of time from the day of admission to the day of discharge from the hospital of a bed patient usually without interruption. This period includes the day of admission but not the day of discharge in the length-of-stay calculation.

Mandated system by the Tax Equity and Fiscal Responsibility Act (TEFRA) in 1983. It provides a predetermined rate of payment for each discharge for all acute hospital inpatient services and is known as the diagnosis-related groups (DRGs) . See diagnosis-related groups (DRGs) .

Medical facility that provides care for an individual admitted for an overnight or longer stay for the diagnosis and treatment of mental illness on a 24-hour basis by or under the supervision of a physician.

Insurance payment or payment by the patient to the hospital facility for the costs sustained to treat an individual admitted as a bed patient.