I'm not sure if there is a code for iTunes. But I always buy my blurays new and never use the ultraviolet slip. I'm actually at work and can't confirm there's a iTunes code on it. I should be able to check in a couple hrs.
Ok so I just read the UV slip, never knew you could download through iTunes. So that is a big yes, this code has not been used for iTunes and UV it's good for both.