Amends the Illinois Insurance Code. Provides that an individual or group policy of accident and health insurance or managed care plan that is amended, delivered, issued, or renewed after the effective date of the amendatory Act must provide coverage for medically necessary hearing instruments and related services for all individuals (rather than all individuals under the age of 18) when a hearing care professional prescribes a hearing instrument to augment communication. Makes conforming changes, including repealing provisions concerning optional coverage or optional reimbursement for hearing instruments and related services. Effective January 1, 2025.