Indiana Code Title 16. Health § 16-36-6-11

(1) A signed and dated writing.

(2) Physical cancellation or destruction of the POST form by:

(3) An oral expression by the declarant or representative of an intent to revoke the POST form.

(1) the declarant is incapable of making decisions regarding the declarant's health care;  and

(2) the representative acts:

(1) a declarant, the declarant's proxy, or the declarant's representative completed and signed a POST form;

(2) the declarant who signed the POST form is incapable of making decisions regarding the declarant's health care;  and

(3) no representative appointed by the declarant is able or reasonably available to act to revoke the POST form;

(1) Add the revocation to the declarant's medical record with the following information:

(2) Cancel the POST form that is being revoked by conspicuously noting in the declarant's medical records that the declarant's POST form has been voided.

(3) Notify any health care personnel responsible for the care of the declarant of the revocation of the POST form.

(4) Notify the physician, advanced practice registered nurse, or physician assistant who signed the POST form of the revocation through the contact information for the physician, advanced practice registered nurse, or physician assistant indicated on the form.