insurance; cancer; chemotherapy; scalp cooling

HB 2558 requires Arizona health insurers to cover scalp cooling systems for cancer patients undergoing chemotherapy, starting January 1, 2027. The bill mandates that hospital service corporations, health care services organizations, disability insurers, and group disability insurers must provide coverage for these systems when used alongside cancer-related chemotherapy treatment. A "scalp cooling system" is defined as a medical device designed to prevent or reduce hair loss during chemo, intended for repeated use and primarily for medical purposes. This policy directly affects cancer patients receiving chemotherapy in Arizona and insurers offering related coverage. The law creates a new coverage requirement without altering existing treatment standards.