N.M. Stat. § 59A-22-34
Newly born children coverage.
A. All individual and group health insurance policies delivered or issued for delivery
in this state and which provide coverage on an expense-incurred basis for a family
member of the insured shall, as to such family members' coverage, also provide that the
health insurance benefits applicable for children shall be payable with respect to a
newly born child of the insured from the moment of birth.
B. All individual and group health insurance policies delivered or issued for delivery
in this state that do not provide coverage for a family member of the insured shall
provide for an option to add to the coverage any newly born child of the insured
provided that the requirements of Subsection D of this section have been met.
C. The coverage for newly born children shall consist of coverage of injury or
sickness, including the necessary care and treatment of medically diagnosed congenital
defects and birth abnormalities and, where necessary to protect the life of the infant,
transportation, including air transport, to the nearest available tertiary care facility for
newly born infants.
D. If payment of a specific premium is required to provide coverage for a child, the
policy may require that a notification of birth of a newly born child and payment of the
required premium must be furnished to the insurer within thirty-one days after the date
of birth in order to have the coverage from birth.
E. As used in this section and in Section 59A-22-35 NMSA 1978, "tertiary care
facility" means a hospital unit which provides complete perinatal care and intensive care
of intrapartum and perinatal high-risk patients with responsibilities for coordination of
transport, communication, education and data analysis systems for the geographic area
served.