The number of days of care charged to a beneficiary for inpatient extended care services
            is always in units of full days. A day begins at midnight and ends 24 hours later.
            The midnight-to-midnight method is to be used in reporting days of care for beneficiaries,
            even if the facility uses a different definition of day for statistical or other purposes.
         
         A part of a day, including the day of admission, counts as a full day. However, the
            day of discharge, death, or a day on which a patient begins a leave of absence is
            not counted as a day. (Charges for ancillary services on the day of discharge, death,
            or the day on which a patient begins a leave of absence are covered.) If admission
            and discharge or death occur on the same day, the day is considered a day of admission
            and counts as one inpatient day.