N.M. Stat. § 59A-16-13.1
No insurer or other provider of health care benefits regulated under Articles 22, 23, 24A, 44, 46, 47 or 54 of the Insurance Code shall, after July 1, 1989, issue, deliver or execute in this state any policy, plan, contract or certificate of health, medical, hospitalization, accident or sickness coverage unless the policy, plan, contract, certificate or other evidence of coverage provides for surgical and nonsurgical treatment of temporomandibular joint disorders and craniomandibular disorders, subject to the same conditions, limitations, prior review and referral procedures as are applicable to treatment of any other joint in the body and treatable by any practitioner of the healing arts as defined in Section 59A-22-32 NMSA 1978. The health care coverage for craniomandibular and temporomandibular joint disorders required by this section may be subject to reasonable copayments or coinsurance provisions and need not include coverage for orthodontic appliances and treatment, crowns, bridges and dentures unless the disorder is trauma related.
NMS § 59A-16-13.1