Texas Health and Safety Code - HEALTH & SAFETY § 401.520. Disclosure of Record Prohibited; Exception

(1) the customer or a person authorized to act on behalf of the customer requests the record;

(2) the department, the Texas Medical Board, a health authority, or an authorized agent requests the record;

(3) the customer consents in writing to disclosure of the record to another person;

(4) the customer is a victim, witness, or defendant in a criminal proceeding and the record is relevant to that proceeding;

(5) the record is requested in a criminal or civil proceeding by court order or subpoena; or

(6) disclosure is otherwise required by law.