Thanks, Bob. The only change I had to make was a +1 instead of a -1, as we
need to count the day of admission as 1 full day.
Steph

"Bob Phillips" wrote:

=IF(C2<"",C2-B2-1,TODAY()-B2-1)

--
HTH

Bob Phillips

"Steph" wrote in message
...
Using the admission date in a spreadsheet, I have added a column that
counts
the number of days a patient is on service [=today()-B2+1]. Information
regarding the patient stays on the spreadsheet for several days, even if
the
patient is discharged. I would like to know if it is possible to add to
the
formula, or create another that would stop counting if there is a date
entered in the discharge column.