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. Author manuscript; available in PMC: 2020 Oct 1.
Published in final edited form as: Addiction. 2019 Jun 30;114(10):1775–1784. doi: 10.1111/add.14667
Contributing cause (ICD-10) Diagnosis (ICD-9) External Cause of Injury (ICD-9)
All opioid poisoning (illicit and prescription) T400 (Poisoning by Opium), T401 (Poisoning by Heroin), T402 (Poisoning by Other Opioids), T403 (Poisoning by Methadone), T404 (Poisoning by Synthetic Narcotics) 96500 (Poisoning by Opium), 96501 (Poisoning by Heroin), 96502 (Poisoning by Methadone), 96509 (Poisoning by Other Opiates) E8500 (Accidental Poisoning by Heroin), E8501 (Accidental Poisoning by Methadone), E8502 (Accidental Poisoning by Other Opiates)