N.M. Stat. § 24-7A-2.1
Prohibited practice.
A. No insurer or other provider of benefits regulated by the New Mexico Insurance
Code [Chapter 59A NMSA 1978, except for Articles 30A and 42A] or a state agency
shall require a person to execute or revoke an advance health-care directive as a
condition for membership in, being insured for or receiving coverage or benefits under
an insurance contract or plan.
B. No insurer may condition the sale, procurement or issuance of a policy, plan,
contract, certificate or other evidence of coverage, or entry into a pension, profit-
sharing, retirement, employment or similar benefit plan, upon the execution or
revocation of an advance health-care directive; nor shall the existence of an advance
health-care directive modify the terms of an existing policy, plan, contract, certificate or
other evidence of coverage of insurance.
C. The provisions of this section shall be enforced by the superintendent of
insurance under the New Mexico Insurance Code.