Age-adjusted rates of drug-poisoning deaths, including those associated with certain opioids (natural and semi-synthetic opioids [e.g., hydrocodone, oxycodone], synthetic opioids [e.g., fentanyl], and heroin), and other selected drugs. Rates and standard errors obtained from the CDC WONDER Database using ICD-10 underlying cause-of-death codes X40–X44 (unintentional death), X60–X64 (suicide), X85 (homicide), and Y10–Y14 (death of undetermined intent) with multiple cause-of-death codes of T40.0 (opium), T40.1 (heroin), T40.2 (other opioids [i.e., natural and semi-synthetic opioids]), T40.3 (methadone), T40.4 (other synthetic opioids [i.e., those other than methadone]), T40.5 (cocaine) T40.6 (other and unspecified opioids) and T43.6 (psychostimulants with abuse potential). Deaths from specific types of drugs are not mutually exclusive (e.g., an overdose death may involve both heroin and synthetic opioids); because of that, death rates cannot be accurately summed across categories for a total rate. However, the categories all drugs and all opioids de-duplicate overdose death instances that involve multiple drugs. N/A indicates that data are suppressed because the rate is based on 20 or fewer deaths. In some years, deaths related to drug overdoses may be under-reported because of an unusually high number of death certificates with a cause listed as "pending" (e.g., Ohio and West Virginia in 2009). More information is available
here.