Hearsay is a statement, other than one made by the declarant, while testifying at trial or a hearing offered in evidence to prove the truth of the matter asserted. See Federal Rule of Evidence 801(c). Put more simply, it is a statement being repeated by someone other than the person who actually made the statement which is used at trial or in a hearing to prove the truthfulness of the statement.
Courts will generally not allow hearsay statements or evidence to come into court.
And that has nothing to do with what we're arguing about. The therapist and the psychiatrist work together on treating and counseling patients. No one is repeating something someone else said. A therapist is stating the diagnosis of the psychiatrist she worked for and with.
This is becoming a "Yes, it is" "No, it isn't" "Yes, it is" "No, it isn't" argument. It's pointless to continue. You're just going to continue to twist things to fit your beliefs. And, you'll undoubtedly claim I'm twisting things to fit my beliefs. So, why continue? I've got better things to do.