I admit that I am not an expert and may be factually off base. As far as I understand, however, in recent years in the US (and maybe Canada), the term "autism" has covered an increasingly large set of health conditions as compared to more narrowly recognized conditions of some years ago.
Secondly, in the US at least, insurance codes and what the insurance industry recognizes as health conditions warranting money and treatment is limited to a certain list which is far less nuanced and much shorter (the list, that is) than --I think-- in Europe, for example.
But pressure is on under recent Obamacare measures to make the US list correspond instead to the longer list. And as far as research goes, in time new terms may be brought to bear upon health conditions that are, shall we say, autism-like, assuming some conditions now labeled "autism" are broken off from the "autism-proper" label and code. I do not know what Canada's status and practices are.
Meanwhile various autism-like health conditions constitute genuine familial stresses regardless of label and insurance codes while the threat of cutting off insurance funding is real, not least because of bear market pressures to cut spending. Similar funding problems arise among those many varieties of health challenges which are rare, unstudied or under-studies, and unrecognized by the medical establishment.
Established practice cannot keep pace with all the complexities of biologically related causation even were no vested interests hampering the execution of the Hippocratic Oath. Some research that could be helpful if applied fails to make its way into medical practice, probably for reasons practical or unsavory. What, for example, does one make of statistical correspondence between autism cases and the production of various industrial toxins? Or what about over-medication to the benefit of pharmaceutical companies and the doctors in their pay?
And in my understanding, mental health conditions are determined by a "panel of experts" in such a way that sometimes (not always), "expert" opinion is backed by at most fuzzy science. Autism, if it goes through, will not be the only label to have undergone DSM re-classification on dubious scientific grounds, although attempts at various levels have been toward greater scientific rigor. The marriage of science and psychology is relatively new in western history, and human behavior is often more challenging to measure than pH and microbes.
But in such cases as yours, Lena75, who knows what the future holds? Maybe something I have written will trigger a useful question you can pose to your doctor or insurance provider. May the Lord provide for you and give you peace in the storm.