My wife is a therapist and they have a large number of trans and gender nonconforming clients. Earlier this year they had a series of meetings to work through how to change the diagnostics and hide any notions of gender dysphoria of their clients to not tell insurance about it at all. Most therapist offices are doing the same thing.

Just to note if you therapist is a social worker their code of ethics specifically say that they put their clients needs over everything. That includes what the board of social work says or any other legal entity. So protection of privacy and helping you go over almost everything.