Hide POS discount code from Order Summary Page

[KurtisSpade]

Is there a way to hide the code used at the POS on the customers order summary page (so they can not use the code for online purchase). I also have it set up this way so that this discount only applies to certain items during the checkout process (set to specific collections). Additionally I would prefer not to have to set the code to specific users (there will be way too many).  Any help is appreciated!