Coverage for the insured shall terminate on the earliest of any of the following: 18 months after the date of the applicable change in status; The date on which the insured becomes eligible for hospital, surgical, medical, or major medical benefits under any insured group contract or any health maintenance organization group contract or any self-insured group health benefit program or plan provided: The group contract or the self-insured program or plan is on an expense-incurred basis; and The eligibility does not result from the provisions of this chapter; The date on which the insured becomes entitled to benefits under Title XVIII of the Social Security Act; The date on which the insured becomes covered under a non-group policy or under a non-group health maintenance organization contract which provides coverage for hospital, surgical, medical, or major medical benefits on an expense-incurred basis; The premium due date on which the insured does not make timely payment in the amount required for the provided coverage; The date on which the insured elects not to be covered under the group contract; The date on which the employer ceases to provide hospital, surgical, medical, or major medical benefits to its employees under a group contract.