Hi macropod,

Thanks for the response! Let me give you a better idea of what I'm trying to do. This is for a surgery patient list on MS Word. We want to be able to enter an operation date in one cell of a table and then have the number of days since that date (post-operative day # or POD#) in another cell. So to answer your question, the specified date would not be changed.

If I used field codes, then I'd have to make each operation date for each patient a bookmark and refer to it in the code for the POD#? I'd like to make this more user-friendly for other medical students like myself. Would a macro require less work?

Thanks again!