It should work, I got the same code in an e-mail from HP. Terms and conditions from the email with the code:
Purchase must be $1199 or more (before taxes and shipping). Valid on HP.com (hp.com) Internet, mobile, and call center purchases only. Coupon valid through the earlier of 2/27/2016 or while supplies last. Any unused portion will be forfeited. Each coupon code limited to one use per customer; one code per checkout. Offer void where prohibited, taxed, or restricted by law. Non-transferable. Not retroactively valid on previously purchased items. Not valid for any resale activity as defined by HP.com. Coupons may not be used to purchase gift cards. May not be permitted with certain bundle offers. Products and support acquired by customer under these terms are solely for customer's personal use and not for immediate resale or sublicensing. Not valid on Friends and Family program, HP employee purchase programs, refurbished products, HP services, HP ENVY Phoenix 860-180VR (T6W66AV#ABA), HP ENVY Phoenix 860-180VX (T6W67AV#ABA), HP Spectre, HP ENVY x360 15t (L8S90AV), and HP Pavilion 15t Gaming Laptop (M0U61AV), and Star Wars Special Edition Notebook. Offer not combinable with instant rebates.