Tennessee Code Title 33. Mental Health and Substance Abuse and Intellectual and Developmental Disabilities § 33-3-104

(1) The service recipient who is sixteen (16) years of age or over;

(2) The conservator of the service recipient;

(3) The attorney in fact under a power of attorney who has the right to make disclosures under the power;

(4) The parent, legal guardian, or legal custodian of a service recipient who is a child;

(5) The service recipient's guardian ad litem for the purposes of the litigation in which the guardian ad litem serves;

(6) The treatment review committee for a service recipient who has been involuntarily committed;

(7) The executor, administrator or personal representative on behalf of a deceased service recipient;

(8) The caregiver under title 34, chapter 6, part 3; or

(9) An individual acting as an agent under the Tennessee Health Care Decisions Act, compiled in title 68, chapter 11, part 18 or a person's surrogate as designated under title 68, chapter 11, part 18.