Look under “H” and see if homosexuality is listed. I’m guessing that it is not.
I'd bet good money that you're right. I'm sure that pedophilia is missing from the DSM as well.
It used to be once. Here is a short blurb explaining when the change happened.
In 1973 homosexuality per se was removed from the DSM-II classification of mental disorders and replaced by the category Sexual Orientation Disturbance. This represented a compromise between the view that preferential homosexuality is invariably a mental disorder and the view that it is merely a normal sexual variant.