| 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) |