In Illinois, patients with private insurance, such as through an employer, may pay more than $600 out-of-pocket for diagnostic mammograms, according to a 2019 report by Susan G. Komen, a nonprofit organization that works to fight breast cancer and was the force behind the new law. Even when health insurance has covered the diagnostic mammograms, patients may have had to pay money out-of-pocket if they hadn’t yet met their deductibles, or if they had co-pays.