SDCL § 19-2-3.2: Physician-patient privilege waived in criminal proceeding.

In any action or proceeding of a criminal nature, if the physical or mental condition of any person is in issue, any privilege under subdivision 19-19-503(b) shall conclusively be deemed to be waived for the purpose of proving the commission of a criminal offense or for the purpose of impeaching the testimony of the patient, at trial, grand jury proceeding, or preliminary hearing, or for the purpose of discovery under Title 23A.