Groupon Coupon Code: Additional 10% off Pizza or Italian Fare Deals! June 2, 2014 by Rebekah The links in the post below may be affiliate links. Read the full disclosure.Print Email Groupon is back with another coupon code and this time we can save an additional 10% off Pizza or Italian Fare deals! In order to take advantage of this offer you’ll need to apply coupon code PIZZA10 at check out. This speical offer is only valid today, June 2nd and it has a maximum value of $50.