Well, I'm not perfectly aware of that, in the very first place.
Pedophilia is a diagnostic label. The question that always arises about diagnostic labels is whether they are reliable. That is to say, would two psychiatrists who saw the same client and reviewed the same set of records come to the same conclusion? The answer with respect to pedophilia is no. The disagreement is huge.
You can't talk about whether it's a disease or not if experts can't agree on whether it actually exists in a particular person. It's an irrelevant question.