Substance use treatment; Detoxification; Treatment for co-occurring substance use plus either serious mental health illness in adults/serious emotional disturbance in children; Outpatient; Residential/24-hour residential; Intensive outpatient treatment; Residential detoxification; Short-term residential; Does not use medication assisted treatment for alcohol use disorder; Does not treat opioid use disorders; Brief intervention; Cognitive behavioral therapy; Relapse prevention; Substance use disorder counseling; Trauma-related counseling; Telemedicine/telehealth therapy; 12-step facilitation; Private for-profit organization; State Substance use treatment agency; Medicaid; Cash or self-payment; State-financed health insurance plan other than Medicaid; Young adults; Pregnant/postpartum women; Adult men; Seniors or older adults; Lesbian, gay, bisexual, transgender, or queer/questioning (LGBTQ); Veterans; Clients who have experienced intimate partner violence, domestic violence; Clients who have experienced trauma; Comprehensive substance use assessment; Screening for substance use; Screening for mental disorders; Drug or alcohol urine screening; Metabolic syndrome monitoring; Aftercare/continuing care; Discharge Planning; Outcome follow-up after discharge; Self-help groups; Assistance with obtaining social services; Mentoring/peer support; Treatment for other addiction disorder; Substance use disorder education; Individual counseling; Group counseling; Family counseling; Smoking permitted in designated area; Adults; Seniors; Young adults; Female; Male; Vaping permitted in designated area; Case management service; Mental health services; Social skills development; Transportation assistance; Integrated primary care services; Suicide prevention services