Table.

Psychoactive drug-related conceptual categories and syndromes based on chief complaints extracted from emergency department syndromic surveillance data, New York City, 2012-2014

Conceptual Category	Syndrome
Drug overdose	Overdose
Drug mention	Alcohol Amphetamines Benzodiazepine Buprenorphine Cocaine Drug (unspecified) Flakka gamma-Hydroxybutyric acid (GHB) Heroin Ketamine Kratom Marijuana Methadone Methamphetamine Methylenedioxymethamphetamine (MDMA) Naloxone Opioid Opioid analgesics Phencyclidine (PCP) Synthetic cannabinoids Synthetic cathinone (“bath salts”)
Drug abuse/misuse	Detoxification Drug abuse Withdrawal