MS HB1144

Prohibits group health plans and health insurance issuers from imposing cost-sharing requirements (deductibles, coinsurance, copayments) for screening, diagnostic, and supplemental breast examinations.

Defines diagnostic breast examinations as medically necessary exams (per National Comprehensive Cancer Network Guidelines) using mammography, MRI, ultrasound, or contrast-enhanced imaging to evaluate abnormalities.

Defines supplemental breast examinations as medically necessary screening exams with no suspected abnormality, based on personal or family medical history or other risk factors.

Applies cost-sharing prohibition to health savings account-qualified high deductible health plans only after the enrollee satisfies the minimum deductible, except for preventive care services.

Amends Section 83-9-108 to apply these no cost-sharing requirements to mammography screening coverage already mandated for women 35 years and older; effective July 1, 2024.