Substance use treatment; Detoxification; Treatment for co-occurring substance use plus either serious mental health illness in adults/serious emotional disturbance in children; Hospital inpatient/24-hour hospital inpatient; Hospital inpatient detoxification; Hospital inpatient treatment; General Hospital (including VA hospital); Buprenorphine used in Treatment; Naltrexone used in Treatment; Does not use medication assisted treatment for alcohol use disorder; Buprenorphine detoxification; Buprenorphine maintenance; Prescribes buprenorphine; Prescribes naltrexone; Buprenorphine with naloxone; Buprenorphine without naloxone; Naltrexone (oral); Medications for Hepatitis C treatment; Clonidine; Medication for mental disorders; Brief intervention; Motivational interviewing; Substance use disorder counseling; Telemedicine/telehealth therapy; Private non-profit organization; State mental health department; State department of health; Commission on Accreditation of Rehabilitation Facilities (CARF); Hospital licensing authority; The Joint Commission; Medicare; Medicaid; Federal military insurance (e.g., TRICARE); Private health insurance; Cash or self-payment; State-financed health insurance plan other than Medicaid; Sliding fee scale (fee is based on income and other factors); Young adults; Adult women; Pregnant/postpartum women; Adult men; Seniors or older adults; Lesbian, gay, bisexual, transgender, or queer/questioning (LGBTQ); Veterans; Clients with co-occurring mental and substance use disorders; Clients with co-occurring pain and substance use disorders; Clients with HIV or AIDS; Clients who have experienced sexual abuse; Clients who have experienced intimate partner violence, domestic violence; Clients who have experienced trauma; Comprehensive mental health assessment; Screening for mental disorders; Discharge Planning; Naloxone and overdose education; Alcohol Detoxification; Benzodiazepines Detoxification; Cocaine Detoxification; Methamphetamines detoxification; Opioids detoxification; Medication routinely used during detoxification; Substance use disorder education; Individual counseling; Smoking not permitted; Adults; Seniors; Young adults; Female; Male; Vaping not permitted; Case management service