I have a pretty bad case of scoliosis AND I deadlift, and what I have to say will probably both encourage you and discourage you too.
It took years of patient painstaking effort for me to even get to the point at which I could deadlift. Any doctor in the world would say that I shouldn't be doing it, but I am doing it anyway and it's going great so far.
All that time I was grinding away at strength deficits. I can't force my spine to do right, but the muscles are an entirely different story. That's the encouraging part.
The discouraging part is this: That ANYTHING you do that causes spinal compression might exacerbate the problem. Deadlifts, squats, goodmornings... doing all the good stuff with good form depends on your being able to maintain a neutral spine.
So basically you are taking a real chance on throwing your back out or making your condition worse.
So to answer your question.... is it good for the discs? Probably not but who knows? Ask your doctor.