No, you cannot use the serial code from a physical copy of Battlefront purchased in the US.
No, you cannot use the serial code from a physical copy of Battlefront purchased in the US.
Is it feasible? You can insert the serial code directly into the "redeem" section of Origin. Even without a DVD reader, you should be able to do it.
Contact EA Support—they’re excellent, especially after receiving a Titanfall key for the incorrect console.