The bill aims to revise preauthorization laws by directing the Department of Public Health and Human Services in Montana to eliminate the requirement for prior authorization for certain antipsychotic drugs. Specifically, the department is prohibited from requiring prior authorization under the Medicaid program for any antipsychotic drug that has been approved by the U.S. Food and Drug Administration for its approved indications for Medicaid members aged 18 years and older. Additionally, the bill clarifies that it does not mandate coverage for antipsychotic drugs that are not eligible for coverage under federal law.

The bill includes provisions for its effective date, stating that it will take effect 30 days after being passed and approved, and it will apply to claims submitted for payment for services provided on or after the effective date. This legislative change is intended to facilitate timely access to necessary medications for individuals with serious mental illnesses, thereby improving their treatment outcomes.