5 ILCS 375/6
The program of health benefits shall be designed by the Director (1) to provide a reasonable relationship between the benefits to be included and the expected distribution of expenses of each such type to be incurred by the covered members and dependents, (2) to specify, as covered benefits and as optional benefits, the medical services of practitioners in all categories licensed under the Medical Practice Act of 1987, (3) to include reasonable controls, which may include deductible and co-insurance provisions, applicable to some or all of the benefits, or a coordination of benefits provision, to prevent or minimize unnecessary utilization of the various hospital, surgical and medical expenses to be provided and to provide reasonable assurance of stability of the program, and (4) to provide benefits to the extent possible to members throughout the State, wherever located, on an equitable basis. Notwithstanding any other provision of this Section or Act, for all members Text could not be parsed for affected code 720 ILCS 510/1 of Act Section 20 of Act HB 40. Parse error on line 1 in position 1556 for the following reason: 'End tag 'para' does not match the start tag 'codetext'. '. or dependents who are eligible for benefits under Social Security or the Railroad Retirement system or who had sufficient Medicare-covered government employment, the Department shall reduce benefits which would otherwise be paid by Medicare, by the amount of benefits for which the member or dependents are eligible under Medicare, except that such reduction in benefits shall apply only to those members or dependents who (1) first become eligible for such medicare coverage on or after the effective date of this amendatory Act of 1992; or (2) are Medicare-eligible members or dependents of a local government unit which began participation in the program on or after July 1, 1992; or (3) remain eligible for but no longer receive Medicare coverage which they had been receiving on or after the effective date of this amendatory Act of 1992.
Notwithstanding any other provisions of this Act, where a covered member or dependents are eligible for benefits under the federal Medicare health insurance program (Title XVIII of the Social Security Act as added by Public Law 89-97, 89th Congress), benefits paid under the State of Illinois program or plan will be reduced by the amount of benefits paid by Medicare. For members or dependents who are eligible for benefits under Social Security or the Railroad Retirement system or who had sufficient Medicare-covered government employment, benefits shall be reduced by the amount for which the member or dependent is eligible under Medicare, except that such reduction in benefits shall apply only to those members or dependents who (1) first become eligible for such Medicare coverage on or after the effective date of this amendatory Act of 1992; or (2) are Medicare-eligible members or dependents of a local government unit which began participation in the program on or after July 1, 1992; or (3) remain eligible for, but no longer receive Medicare coverage which they had been receiving on or after the effective date of this amendatory Act of 1992. Premiums may be adjusted, where applicable, to an amount deemed by the Director to be reasonably consistent with any reduction of benefits.
5 ILCS 375/6