Battlefield 4 deluxe edtion can't redeem code

@darkfking To elaborate on what @2042isNotBF stated that is because codes are only one time use and can be redeemed only one time -  after you redeem it on your Origin account it is forever bound to the redeeming Origin account. To reinstall an Origin game after a format do what Zorlacc stated and sign in with your Origin account under which you redeemed BF4's CD key, then go to your games library, right click the BF4 icon and select "download".