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

This bill requires health insurance plans to cover outpatient diagnosis and treatment for substance use disorder - including detoxification and rehabilitation - without preauthorization. It applies to all medical, major medical, and comprehensive insurance policies. The law prohibits insurers from applying stricter financial limits or treatment restrictions to substance use disorder care than those used for standard medical or surgical services. This change aims to reduce administrative barriers for people seeking treatment.