Provides that coverage for outpatient diagnosis and treatment of substance use disorder shall not be subject to preauthorization

This bill removes preauthorization requirements for outpatient diagnosis and treatment of substance use disorder under most health insurance policies. It directly affects health insurers and patients seeking treatment for substance use disorders, ensuring such coverage cannot be blocked by prior approval. The law mandates that insurers provide this coverage without stricter financial limits or treatment restrictions than those applied to general medical and surgical care. The policy change applies immediately to all new, renewed, or modified insurance policies issued after the effective date.