A. Any hospital or medical expense insurance policy delivered or issued for delivery in this state more than ninety days after July 2, 1973, which provides that coverage of a dependent child of an employee or other member of the covered group shall terminate upon attainment of the limiting age for dependent children specified in the policy shall also provide in substance that attainment of such limiting age shall not operate to terminate the coverage of such child while the child is and continues to be both (1) incapable of self sustaining employment, and (2) chiefly dependent upon the policyholder, employee or member for support and maintenance, provided proof of such incapacity and dependency is furnished to the insurer by the employee or member within thirty-one days of the child's attainment of the limiting age and subsequently as may be required by the insurer but not more frequently than annually after the two-year period following the child's attainment of the limiting age.
B. Any hospital or medical expense insurance policy described in Subsection A of this Section and delivered in this state on or prior to ninety days after July 2, 1973, shall be endorsed to include coverage for such child who had attained the limiting age on or prior to ninety days after July 2, 1973, while such child is or continues to be both (1) incapable of self-sustaining employment by reason of mental or physical disability, and (2) chiefly dependent upon the policyholder, employee or member for support and maintenance, provided such incapacity existed prior to the attainment of the limiting age for dependent children under such group policy and proof of such incapacity and dependency is furnished to the insurer by the employee or member on or before January 1, 1975, and subsequently as may be required by the insurer, but not more frequently than annually.