A few years ago, there was some push back by intersex organizations against being lumped with the trans. There was even a statement on one of the US intersex sites saying something along the lines of, "While we support transgender people in their struggle, intersex people are not transgender, although, like others, they may identify as transgender." (paraphrasing)

But I just looked on the site I thought had the statement, and couldn't find it. Could be another rewriting of history by the gender lobby.

Clare Graham (or Claire Graham) is a UK intersex advocate who probably has information on this. I think she has a site that a search should pull up.