N.M. Stat. § 59A-23E-3
Limitation on preexisting condition exclusion period.
A health insurance issuer or health benefits plan offering group health insurance,
blanket health insurance or individual health insurance shall not impose any preexisting
condition exclusion with respect to that health insurance plan or coverage. A health
insurance issuer or health insurance plan offering group health insurance, blanket
health insurance or individual health insurance shall not impose a waiting period in
excess of ninety days with respect to a health insurance plan or coverage.