3.1 Illinois Health Insurance Policy Requirements

Who Regulates What

The Illinois Department of Insurance (IDOI) supervises every health-coverage line sold in the state, but the legal authority differs by product. Knowing which statute governs which product is a frequent exam item.

The Illinois HMO Act

A Health Maintenance Organization (HMO) delivers care through a contracted network for a fixed prepaid premium. The HMO Act requires the organization to hold a certificate of authority from IDOI, maintain an adequate provider network measured by time-and-distance standards, run a written grievance and appeals procedure, and meet minimum net-worth and deposit solvency rules. Members generally must use a primary care physician for referrals; emergency care is covered out-of-network under the prudent-layperson standard.

The 10-Day Free Look

Illinois gives the buyer of an individual accident and health policy a 10-day free look beginning the day the policy is delivered. If the policyowner returns the contract within those 10 days and has filed no claim, the insurer must refund every dollar of premium paid, with no surrender charge.

• The clock starts at delivery, not at the application or issue date.
• The right must be printed on the cover or first page of the policy.
• A returned policy is treated as if it never took effect (void from inception).

Exam trap: Individual health and individual disability both use a 10-day free look in Illinois. Medicare Supplement and long-term care policies use a longer 30-day free look. Do not confuse the two — examiners love this pairing.

Worked Example

A client receives her individual major-medical policy on March 3. She decides on March 11 that the deductible is too high and mails the policy back the same day with no claim filed. Because March 11 is the eighth day after delivery, she is inside the 10-day window and receives a 100% premium refund. Had she waited until March 14, the free look would have expired and only the contract's ordinary cancellation terms would apply.

Mandated Benefits and Essential Health Benefits

Under the Affordable Care Act as adopted in Illinois, every individual and small-group plan must cover the 10 Essential Health Benefits (EHBs):

1. Ambulatory (outpatient) services
2. Emergency services
3. Hospitalization
4. Maternity and newborn care
5. Mental health and substance-use-disorder services
6. Prescription drugs
7. Rehabilitative and habilitative services and devices
8. Laboratory services
9. Preventive, wellness, and chronic-disease management
10. Pediatric services, including dental and vision

Illinois adds its own statutory mandates on top of the EHBs — for example, coverage of autism spectrum disorder treatment for children, mammography and other cancer screenings, diabetes self-management and supplies, and (under recent reforms) limits on out-of-pocket insulin cost. Preventive services on the federal list are covered with no cost-sharing.

Mental Health Parity

The Illinois parity law requires mental health and substance-use benefits to be no more restrictive than medical/surgical benefits — same deductibles, copays, visit limits, and prior-authorization rules. Conditions explicitly protected include schizophrenia, bipolar disorder, major depression, obsessive-compulsive disorder, panic disorder, and substance-use disorders.

Pre-Existing Conditions, Guaranteed Issue, and Renewal

In the individual and small-group markets the insurer must accept all applicants (guaranteed issue) and may not deny, rate up, or exclude based on health status. Coverage is also guaranteed renewable — the insurer may non-renew only for non-payment of premium, fraud or material misrepresentation, or discontinuation of the entire product line with required advance notice.

Get Covered Illinois (2026 Change)

Get Covered Illinois is the state's official ACA marketplace. As of January 1, 2026, it operates as a full state-based marketplace and no longer uses the federal Healthcare.gov platform; existing Healthcare.gov enrollees were migrated to Get Covered Illinois accounts.

• It is the only venue where buyers can obtain advance premium tax credits and cost-sharing reductions (Silver plans).
• Plans are sorted into Bronze, Silver, Gold, and Platinum metal tiers by actuarial value.
• Open enrollment ran November 1, 2025 through January 15, 2026; qualifying life events open special enrollment.

Exam tip: Older study material still says Get Covered Illinois "uses Healthcare.gov." For exams dated 2026 and later, the correct answer is that Illinois runs its own state-based exchange.

Group, Conversion, and Continuation Rules

Illinois group health contracts must give a terminating employee the right to convert to an individual policy without evidence of insurability, and the state's continuation law (working alongside federal COBRA) lets employees of small firms keep group coverage for a limited period after a qualifying event such as job loss, reduced hours, or divorce. Illinois also extends dependent coverage for children, generally up to age 26 consistent with federal rules, with additional protection for disabled dependents beyond that age.

Newborns and adopted children must be covered automatically from birth or placement, with a short window — typically 31 days — to notify the insurer and add premium.

Claims and Consumer Protections

Illinois mandates prompt-pay timelines: clean electronic claims must generally be paid within 30 days and paper claims within 30-45 days, with interest accruing on late payments. Insureds have internal appeal rights and a right to external independent review of denied benefits. Producers must follow the Unfair Claims Settlement and Unfair Trade Practices provisions — misrepresenting policy terms, twisting, rebating, or unfair discrimination can lead to IDOI fines and license suspension or revocation.