NY Ins L §3221(k)(5)(A)(i)

(i) Every group or blanket policy delivered or issued for delivery in this state which provides hospital, surgical or medical coverage shall include coverage for maternity care, including hospital, surgical or medical care to the same extent that coverage is provided for illness or disease under the policy.  Such maternity care coverage, other than coverage for perinatal complications, shall include inpatient hospital coverage for mother and newborn for at least forty-eight hours after childbirth for any delivery other than a caesarean section, and for at least ninety-six hours after a caesarean section.