Except as otherwise provided in this section, each policy of health insurance that is delivered or issued for delivery in the State shall contain the exact language of each provision that is required under §§ 15-207 through 15-218 of this subtitle and any optional provision in §§ 15-207 through 15-226 of this subtitle that is used. The insurer may substitute a corresponding provision with different wording for a provision set forth in this subtitle if the corresponding provision is approved by the Commissioner and is not less favorable in any respect to the insured or beneficiary