No policy of industrial life insurance shall contain any provision giving the insurer the right to declare the policy void because the insured has had any disease or ailment, whether specified or not, or because the insured has received institutional, hospital, medical, or surgical treatment, except a provision which gives the insurer the right to declare the policy void if the insured has, within two years prior to the issuance of the policy, received institutional, hospital, medical, or surgical treatment or attention and if the insured or claimant under the policy fails to show that the condition occasioning such treatment or attention was not of a serious nature or was not material to the risk.

Source: SL 1966, ch 111, ch 23, § 27 (2).