Table 1 ICD-9-CM diagnosis codes included in ED visit sample
Opioid poisoning-related diagnosis codes | Non-opioid poisoning-related diagnosis codes |
|---|---|
Poisoning by opium, unspecified (965.00) | Late effect of poisoning due to drug, medicinal or biological substances (909.0) |
Poisoning by heroin (965.01) | Poisoning by other specified drugs and medicinal substances (977.9) |
Poisoning by methadone (965.02) | Drug dependence (304) |
Poisoning by other opiates or related narcotics (965.09) | Opioid abuse (305.5) |
Accidental poisoning by heroin (E850.0) | |
Accidental poisoning by methadone (E850.1) | |
Accidental poisoning by other opiates or related narcotics (E850.2) |