Technically there is a difference. From what I've been told, disordered eating is
ED-like behaviours but that are not an eating disorder, if that makes sense? Like, Obsessing over calories, but not restricting is disordered eating.According to one of my therapists, they are one and the same.
I personally think that disordered eating is the start of an eating disorder, that it can lead to an eating disorder, but is not a full blown disorder yet. I hope some of this made sense xD