Illinois Statutes Chapter 215. Insurance § 200/70. Continuity of care for enrollees

(a) On receipt of information documenting a prior authorization approval from the enrollee or from the enrollee's health care professional or health care provider, a health insurance issuer shall honor a prior authorization granted to an enrollee from a previous health insurance issuer or its contracted utilization review organization for at least the initial 90 days of an enrollee's coverage under a new health plan, subject to the terms of the member's coverage agreement.

(b) During the time period described in subsection (a), a health insurance issuer or its contracted utilization review organization may perform its own review to grant a prior authorization approval subject to the terms of the member's coverage agreement.

(c) If there is a change in coverage of or approval criteria for a previously authorized health care service, the change in coverage or approval criteria does not affect an enrollee who received prior authorization approval before the effective date of the change for the remainder of the enrollee's plan year.

(d) Except to the extent required by medical exceptions processes for prescription drugs, nothing in this Section shall require a policy to cover any care, treatment, or services for any health condition that the terms of coverage otherwise completely exclude from the policy's covered benefits without regard for whether the care, treatment, or services are medically necessary.