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.

Good for them. But this is at best a breach of contract but could easily be a criminal offense. Insurance takes being defraud quite seriously

Just to note if you therapist is a social worker their code of ethics specifically say that they put their clients needs over everything.

Thats not how the federal and stage laws operates.