It does cover the whole grouping of trans-varient people.
Bjt therein lies the problem.
Almost every transsexual woman I know (a lot)
totally rejects this term as applying to them as it implies (incorrectly)
a connection, overlap or similarity with CD's and Tv's.
I think the term was coined by persons with no accurate understanding of transsexual people.
The general lumping together of transsexual people with other trans-varient people
is inaccurate and does not acknowledge that there is little overlap.
{Except possibly in an individual ts persons personal history}
The use of the term 'Transgender' to include trans-people (of all flavours)
is similar to the way that trans-people been lumped together
under the LGBT banner, for political convenience. While at the same time
not acknowledging that LBG may have no relevance to most T's sexual orientation.
I just found this stuff which goes back 40+ years
Actually, most ts women I know don't give it any real consideration
as they don't identify as Tg or as Ts for that matter either.
We identify as women.
(That's not everyone; I know two people happy to identify as Ts. So there you go)