What is the current state of the law on the privilege of psychotherapist-patient privilege?

"The psychotherapist-patient privilege has been recognized as an aspect of the patient's constitutional right to privacy. [Citations.] It is also well established, however, that the right to privacy is not absolute, but may yield in the furtherance of compelling state interests. [Citations.]" (People v. Stritzinger (1983) 34 Cal.3d 505, 511.)