Yes, your "product code", (as EA calls it now) is valid for the EA/Origin store digital download version.
1. Install the EA/Origin client (if you haven't already)
2. Log-on with the same account you used to register the game in the first place
3. Select "Origin" from the top-line menu
4. Select "Redeem product code" then enter yours
5. Download and install
Voilá! Dragon Age Origins: Awakening. 😕mileyvery-happy:
[EDIT: Same process is good for the base game and/or DA2 as well, so you'd never need a disc again!]
