215 ILCS 5/143.1: Periods of limitation tolled.

Whenever any policy or contract for insurance, except life, accident and health, fidelity and surety, and ocean marine policies, contains a provision limiting the period within which the insured may bring suit, the running of such period is tolled from the date proof of loss is filed, in whatever form is required by the policy, until the date the claim is denied in whole or in part.