This bill amends Title 39 of the Idaho Code by adding a new Chapter 23, which establishes provisions for breast cancer screening. It defines "supplemental breast screening" as a medically necessary examination using various imaging techniques, including magnetic resonance imaging and ultrasound, when no abnormalities are suspected. The bill mandates that health benefit plans, including individual and group insurance policies, must provide coverage for one supplemental breast screening annually for individuals at increased risk of breast cancer due to specific medical histories or genetic predispositions.

Additionally, the bill clarifies that while coverage for breast imaging is required, it does not prevent health plans from applying deductible, copayment, or coinsurance provisions beyond the minimum coverage specified. The act is set to take effect on January 1, 2026, following the declaration of an emergency.