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

This bill requires health insurance policies to cover outpatient services for diagnosing and treating substance use disorders without needing prior approval from the insurer. It directly affects individuals seeking addiction treatment and the insurance companies that provide these health plans. Under the new rules, insurers cannot impose stricter financial costs or treatment limits on substance use disorder care than they do for general medical services. The law also ensures that detoxification and rehabilitation services are included in this coverage.