I don't know why not. If someone has the diagnosis on their DA3947, it is the same as any other condition. You have a right to request an informal reconsideration when you get the DA199, and then a formal hearing. I will say that you are unlikely to win an appeal because the criteria is spelled out very clearly. As I said before, I don't necessarily agree with it, I just counsel on the standard. A soldier is free to request an IMR/appeal whether I think it will go anywhere or not. I think at some point, someone is going to have to be the one to force another look at the criteria and stack it up against other behavioral diagnosis and ask the question, "Why is the criteria so high for this and not PTSD or other Behavioral health conditions?"
I think, and this is just my opinion, that we have not yet seen the final iteration of the adjustment disorder solution.