N.H. Code Admin. R. Ins 6101.05
This section shall indicate the carrier responsible for liability in those instances in which one carrier’s policy or certificate replaces a plan of similar benefits of another carrier.
(b) If the individual was validly covered under the prior plan on the date of discontinuance, each individual who is eligible for coverage in accordance with the succeeding carrier’s plan of benefits with respect to the class or classes of individuals eligible for coverage under the succeeding carrier’s plan shall be enrolled and covered by the succeeding carrier’s plan of benefits as follows:
(1) Each person not covered under the succeeding carrier’s plan of benefits in accordance with the above shall nevertheless be covered by the succeeding carrier in accordance with the following rules if the individual was validly covered, including benefit extension, under the prior plan on the date of discontinuance and if the individual is a member of the class or classes of individuals eligible for coverage under the succeeding carrier’s plan. Any reference in the following rules to an individual who was or was not totally disabled is a reference to the individual’s status immediately prior to the date the succeeding carrier’s coverage becomes effective, and:
b. Coverage shall be provided by the succeeding carrier on the earliest of the following dates:
1. The date the individual becomes eligible under the succeeding carrier’s plan as
described in Ins 6101.05(b);
(2) In the case of a preexisting conditions limitation included in the succeeding carrier’s plan, the level of benefits applicable to preexisting conditions of individuals becoming covered by the succeeding carrier’s plan in accordance with this paragraph during the period of time this limitation applies under the new plan shall be the lesser of:
(4) In any situation where a determination of the prior carrier’s benefit is required by the
succeeding carrier, at the succeeding carrier’s request, the prior carrier shall furnish a statement
of the benefits available or pertinent information sufficient to permit verification of the benefit determination or the determination itself by the succeeding carrier. For the purposes of this subparagraph, benefits of the prior plan shall be determined in accordance with all of the definitions, conditions, and covered expense provisions of the prior plan rather than those of the succeeding plan. The benefit determination shall be made as if coverage had not been replaced by the succeeding carrier.
Source. (See Revision Note #1 at chapter heading for Ins 6100) #12471, eff 1-31-18