Minn. Stat. § 145B.09
A living will under this chapter may be revoked in whole or in part at any time and in any manner by the declarant, without regard to the declarant's physical or mental condition. A revocation is effective when the declarant communicates it to the attending physician or other health care provider. The attending physician or other health care provider shall note the revocation as part of the declarant's medical record.
Unless a living will under this chapter expressly provides otherwise, if after executing a living will the declarant's marriage is dissolved or annulled, the dissolution or annulment revokes any designation of the former spouse as a proxy to make health care decisions for the declarant.
Minn. Stat. § 145B.09
1989 c 3 s 9; 1991 c 148 s 6