Basic outpatient preventive and primary health care services for children. In order to attempt to address the needs of children in Illinois (i) without health care coverage, either through a parent’s employment, through medical assistance under the Illinois Public Aid Code, or any other health plan or (ii) who lose medical assistance if and when their parents move from welfare to work and do not find employment that offers health care coverage, a health maintenance organization may undertake to provide or arrange for and to pay for or reimburse the cost of basic outpatient preventive and primary health care services. The Department shall promulgate rules to establish minimum coverage and disclosure requirements. These requirements at a minimum shall include routine physical examinations and immunizations, sick visits, diagnostic x-rays and laboratory services, and emergency outpatient services. Coverage may also include preventive dental services, vision screening and one pair of eyeglasses, prescription drugs, and mental health services. The coverage may include any reasonable co-payments, deductibles, and benefit maximums subject to limitations established by the Director by rule. Coverage shall be limited to children who are 18 years of age or under, who have resided in the State of Illinois for at least 30 days, and who do not qualify for medical assistance under the Illinois Public Aid Code. Any such coverage shall be made available to an adult on behalf of such children and shall not be funded through State appropriations. In counties with populations in excess of 3,000,000, the Director shall not approve any arrangement under this Section unless and until an arrangement for at least one health maintenance organization under contract with the Department of Healthcare and Family Services (formerly Illinois Department of Public Aid) for furnishing health services pursuant to § 5-11 of the Illinois Public Aid Code and for which the requirements of 42 C.F.R. § 434.26(a) have been waived is approved.