Requires health insurance coverage of diagnostic and supplemental breast examinations without cost-sharing.

S 1275 requires all health insurance plans in New Jersey (including hospital, medical, and health service corporation plans) to cover diagnostic and supplemental breast examinations without cost-sharing. Diagnostic exams evaluate abnormalities found in screenings or detected otherwise, while supplemental exams screen high-risk patients (e.g., those with dense breasts or family history) when no abnormality exists. The bill mandates coverage "to the same extent as for any other sickness" under insurance contracts, eliminating deductibles, copays, or coinsurance for these specific exams. This directly affects New Jersey residents with health insurance who require these medically necessary breast screenings.