Substance use treatment; Treatment for co-occurring substance use plus either serious mental health illness in adults/serious emotional disturbance in children; Residential/24-hour residential; Long-term residential; Buprenorphine used in Treatment; Does not use medication assisted treatment for alcohol use disorder; Use methadone/buprenorphine for pain management or emergency dosing; Buprenorphine without naloxone; Cognitive behavioral therapy; Contingency management/motivational incentives; Substance use disorder counseling; Private non-profit organization; State Substance use treatment agency; State mental health department; State department of health; Federally Qualified Health Center; Federal, or any government funding for substance use treatment programs; Medicare; Medicaid; Private health insurance; Cash or self-payment; Payment assistance (check with facility for details); Young adults; Adult women; Comprehensive mental health assessment; Screening for substance use; Screening for mental disorders; Professional interventionist/educational consultant; Discharge Planning; Assistance with obtaining social services; Employment counseling or training; Substance use disorder education; Smoking/vaping/tobacco cessation counseling; Individual counseling; Group counseling; Smoking not permitted; Female; Spanish; Acupuncture; Case management service; Social skills development; Transportation assistance