W. Va. Code § 33-6-32
All individual and group health insurance policies providing coverage on an expense incurred basis and individual and group service or indemnity type contracts issued by a nonprofit corporation which provide coverage for a family member of the insured or subscriber 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 or subscriber from the moment of birth.
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.
If payment of a specific premium or subscription fee is required to provide coverage for a child, the policy or contract may require that notification of birth of a newly born child and payment of the required premium or fees must be furnished to the insurer or nonprofit service or indemnity corporation within thirty-one days after the date of birth in order to have the coverage continue beyond such thirty-one day period.
The requirements of this section shall apply to all insurance policies and subscriber contracts now existing or hereafter delivered or issued for delivery in this state.
W. Va. Code § 33-6-32