ICD-10-CM category
T40 Poisoning by narcotics and psychodysleptics [hallucinogens]
T40 is a category, not a billable code. Report one of the 258 complete codes below.
T40.0…
18 codes
- T40.0X1APoisoning by opium, accidental (unintentional), initial encounter
- T40.0X1DPoisoning by opium, accidental (unintentional), subsequent encounter
- T40.0X1SPoisoning by opium, accidental (unintentional), sequela
- T40.0X2APoisoning by opium, intentional self-harm, initial encounter
- T40.0X2DPoisoning by opium, intentional self-harm, subsequent encounter
- T40.0X2SPoisoning by opium, intentional self-harm, sequela
- T40.0X3APoisoning by opium, assault, initial encounter
- T40.0X3DPoisoning by opium, assault, subsequent encounter
- T40.0X3SPoisoning by opium, assault, sequela
- T40.0X4APoisoning by opium, undetermined, initial encounter
- T40.0X4DPoisoning by opium, undetermined, subsequent encounter
- T40.0X4SPoisoning by opium, undetermined, sequela
- T40.0X5AAdverse effect of opium, initial encounter
- T40.0X5DAdverse effect of opium, subsequent encounter
- T40.0X5SAdverse effect of opium, sequela
- T40.0X6AUnderdosing of opium, initial encounter
- T40.0X6DUnderdosing of opium, subsequent encounter
- T40.0X6SUnderdosing of opium, sequela
T40.1…
12 codes
- T40.1X1APoisoning by heroin, accidental (unintentional), initial encounter
- T40.1X1DPoisoning by heroin, accidental (unintentional), subsequent encounter
- T40.1X1SPoisoning by heroin, accidental (unintentional), sequela
- T40.1X2APoisoning by heroin, intentional self-harm, initial encounter
- T40.1X2DPoisoning by heroin, intentional self-harm, subsequent encounter
- T40.1X2SPoisoning by heroin, intentional self-harm, sequela
- T40.1X3APoisoning by heroin, assault, initial encounter
- T40.1X3DPoisoning by heroin, assault, subsequent encounter
- T40.1X3SPoisoning by heroin, assault, sequela
- T40.1X4APoisoning by heroin, undetermined, initial encounter
- T40.1X4DPoisoning by heroin, undetermined, subsequent encounter
- T40.1X4SPoisoning by heroin, undetermined, sequela
T40.2…
18 codes
- T40.2X1APoisoning by other opioids, accidental (unintentional), initial encounter
- T40.2X1DPoisoning by other opioids, accidental (unintentional), subsequent encounter
- T40.2X1SPoisoning by other opioids, accidental (unintentional), sequela
- T40.2X2APoisoning by other opioids, intentional self-harm, initial encounter
- T40.2X2DPoisoning by other opioids, intentional self-harm, subsequent encounter
- T40.2X2SPoisoning by other opioids, intentional self-harm, sequela
- T40.2X3APoisoning by other opioids, assault, initial encounter
- T40.2X3DPoisoning by other opioids, assault, subsequent encounter
- T40.2X3SPoisoning by other opioids, assault, sequela
- T40.2X4APoisoning by other opioids, undetermined, initial encounter
- T40.2X4DPoisoning by other opioids, undetermined, subsequent encounter
- T40.2X4SPoisoning by other opioids, undetermined, sequela
- T40.2X5AAdverse effect of other opioids, initial encounter
- T40.2X5DAdverse effect of other opioids, subsequent encounter
- T40.2X5SAdverse effect of other opioids, sequela
- T40.2X6AUnderdosing of other opioids, initial encounter
- T40.2X6DUnderdosing of other opioids, subsequent encounter
- T40.2X6SUnderdosing of other opioids, sequela
T40.3…
18 codes
- T40.3X1APoisoning by methadone, accidental (unintentional), initial encounter
- T40.3X1DPoisoning by methadone, accidental (unintentional), subsequent encounter
- T40.3X1SPoisoning by methadone, accidental (unintentional), sequela
- T40.3X2APoisoning by methadone, intentional self-harm, initial encounter
- T40.3X2DPoisoning by methadone, intentional self-harm, subsequent encounter
- T40.3X2SPoisoning by methadone, intentional self-harm, sequela
- T40.3X3APoisoning by methadone, assault, initial encounter
- T40.3X3DPoisoning by methadone, assault, subsequent encounter
- T40.3X3SPoisoning by methadone, assault, sequela
- T40.3X4APoisoning by methadone, undetermined, initial encounter
- T40.3X4DPoisoning by methadone, undetermined, subsequent encounter
- T40.3X4SPoisoning by methadone, undetermined, sequela
- T40.3X5AAdverse effect of methadone, initial encounter
- T40.3X5DAdverse effect of methadone, subsequent encounter
- T40.3X5SAdverse effect of methadone, sequela
- T40.3X6AUnderdosing of methadone, initial encounter
- T40.3X6DUnderdosing of methadone, subsequent encounter
- T40.3X6SUnderdosing of methadone, sequela
T40.4…
54 codes
- T40.411APoisoning by fentanyl or fentanyl analogs, accidental (unintentional), initial encounter
- T40.411DPoisoning by fentanyl or fentanyl analogs, accidental (unintentional), subsequent encounter
- T40.411SPoisoning by fentanyl or fentanyl analogs, accidental (unintentional), sequela
- T40.412APoisoning by fentanyl or fentanyl analogs, intentional self-harm, initial encounter
- T40.412DPoisoning by fentanyl or fentanyl analogs, intentional self-harm, subsequent encounter
- T40.412SPoisoning by fentanyl or fentanyl analogs, intentional self-harm, sequela
- T40.413APoisoning by fentanyl or fentanyl analogs, assault, initial encounter
- T40.413DPoisoning by fentanyl or fentanyl analogs, assault, subsequent encounter
- T40.413SPoisoning by fentanyl or fentanyl analogs, assault, sequela
- T40.414APoisoning by fentanyl or fentanyl analogs, undetermined, initial encounter
- T40.414DPoisoning by fentanyl or fentanyl analogs, undetermined, subsequent encounter
- T40.414SPoisoning by fentanyl or fentanyl analogs, undetermined, sequela
- T40.415AAdverse effect of fentanyl or fentanyl analogs, initial encounter
- T40.415DAdverse effect of fentanyl or fentanyl analogs, subsequent encounter
- T40.415SAdverse effect of fentanyl or fentanyl analogs, sequela
- T40.416AUnderdosing of fentanyl or fentanyl analogs, initial encounter
- T40.416DUnderdosing of fentanyl or fentanyl analogs, subsequent encounter
- T40.416SUnderdosing of fentanyl or fentanyl analogs, sequela
- T40.421APoisoning by tramadol, accidental (unintentional), initial encounter
- T40.421DPoisoning by tramadol, accidental (unintentional), subsequent encounter
- T40.421SPoisoning by tramadol, accidental (unintentional), sequela
- T40.422APoisoning by tramadol, intentional self-harm, initial encounter
- T40.422DPoisoning by tramadol, intentional self-harm, subsequent encounter
- T40.422SPoisoning by tramadol, intentional self-harm, sequela
- T40.423APoisoning by tramadol, assault, initial encounter
- T40.423DPoisoning by tramadol, assault, subsequent encounter
- T40.423SPoisoning by tramadol, assault, sequela
- T40.424APoisoning by tramadol, undetermined, initial encounter
- T40.424DPoisoning by tramadol, undetermined, subsequent encounter
- T40.424SPoisoning by tramadol, undetermined, sequela
- T40.425AAdverse effect of tramadol, initial encounter
- T40.425DAdverse effect of tramadol, subsequent encounter
- T40.425SAdverse effect of tramadol, sequela
- T40.426AUnderdosing of tramadol, initial encounter
- T40.426DUnderdosing of tramadol, subsequent encounter
- T40.426SUnderdosing of tramadol, sequela
- T40.491APoisoning by other synthetic narcotics, accidental (unintentional), initial encounter
- T40.491DPoisoning by other synthetic narcotics, accidental (unintentional), subsequent encounter
- T40.491SPoisoning by other synthetic narcotics, accidental (unintentional), sequela
- T40.492APoisoning by other synthetic narcotics, intentional self-harm, initial encounter
- T40.492DPoisoning by other synthetic narcotics, intentional self-harm, subsequent encounter
- T40.492SPoisoning by other synthetic narcotics, intentional self-harm, sequela
- T40.493APoisoning by other synthetic narcotics, assault, initial encounter
- T40.493DPoisoning by other synthetic narcotics, assault, subsequent encounter
- T40.493SPoisoning by other synthetic narcotics, assault, sequela
- T40.494APoisoning by other synthetic narcotics, undetermined, initial encounter
- T40.494DPoisoning by other synthetic narcotics, undetermined, subsequent encounter
- T40.494SPoisoning by other synthetic narcotics, undetermined, sequela
- T40.495AAdverse effect of other synthetic narcotics, initial encounter
- T40.495DAdverse effect of other synthetic narcotics, subsequent encounter
- T40.495SAdverse effect of other synthetic narcotics, sequela
- T40.496AUnderdosing of other synthetic narcotics, initial encounter
- T40.496DUnderdosing of other synthetic narcotics, subsequent encounter
- T40.496SUnderdosing of other synthetic narcotics, sequela
T40.5…
18 codes
- T40.5X1APoisoning by cocaine, accidental (unintentional), initial encounter
- T40.5X1DPoisoning by cocaine, accidental (unintentional), subsequent encounter
- T40.5X1SPoisoning by cocaine, accidental (unintentional), sequela
- T40.5X2APoisoning by cocaine, intentional self-harm, initial encounter
- T40.5X2DPoisoning by cocaine, intentional self-harm, subsequent encounter
- T40.5X2SPoisoning by cocaine, intentional self-harm, sequela
- T40.5X3APoisoning by cocaine, assault, initial encounter
- T40.5X3DPoisoning by cocaine, assault, subsequent encounter
- T40.5X3SPoisoning by cocaine, assault, sequela
- T40.5X4APoisoning by cocaine, undetermined, initial encounter
- T40.5X4DPoisoning by cocaine, undetermined, subsequent encounter
- T40.5X4SPoisoning by cocaine, undetermined, sequela
- T40.5X5AAdverse effect of cocaine, initial encounter
- T40.5X5DAdverse effect of cocaine, subsequent encounter
- T40.5X5SAdverse effect of cocaine, sequela
- T40.5X6AUnderdosing of cocaine, initial encounter
- T40.5X6DUnderdosing of cocaine, subsequent encounter
- T40.5X6SUnderdosing of cocaine, sequela
T40.6…
36 codes
- T40.601APoisoning by unspecified narcotics, accidental (unintentional), initial encounter
- T40.601DPoisoning by unspecified narcotics, accidental (unintentional), subsequent encounter
- T40.601SPoisoning by unspecified narcotics, accidental (unintentional), sequela
- T40.602APoisoning by unspecified narcotics, intentional self-harm, initial encounter
- T40.602DPoisoning by unspecified narcotics, intentional self-harm, subsequent encounter
- T40.602SPoisoning by unspecified narcotics, intentional self-harm, sequela
- T40.603APoisoning by unspecified narcotics, assault, initial encounter
- T40.603DPoisoning by unspecified narcotics, assault, subsequent encounter
- T40.603SPoisoning by unspecified narcotics, assault, sequela
- T40.604APoisoning by unspecified narcotics, undetermined, initial encounter
- T40.604DPoisoning by unspecified narcotics, undetermined, subsequent encounter
- T40.604SPoisoning by unspecified narcotics, undetermined, sequela
- T40.605AAdverse effect of unspecified narcotics, initial encounter
- T40.605DAdverse effect of unspecified narcotics, subsequent encounter
- T40.605SAdverse effect of unspecified narcotics, sequela
- T40.606AUnderdosing of unspecified narcotics, initial encounter
- T40.606DUnderdosing of unspecified narcotics, subsequent encounter
- T40.606SUnderdosing of unspecified narcotics, sequela
- T40.691APoisoning by other narcotics, accidental (unintentional), initial encounter
- T40.691DPoisoning by other narcotics, accidental (unintentional), subsequent encounter
- T40.691SPoisoning by other narcotics, accidental (unintentional), sequela
- T40.692APoisoning by other narcotics, intentional self-harm, initial encounter
- T40.692DPoisoning by other narcotics, intentional self-harm, subsequent encounter
- T40.692SPoisoning by other narcotics, intentional self-harm, sequela
- T40.693APoisoning by other narcotics, assault, initial encounter
- T40.693DPoisoning by other narcotics, assault, subsequent encounter
- T40.693SPoisoning by other narcotics, assault, sequela
- T40.694APoisoning by other narcotics, undetermined, initial encounter
- T40.694DPoisoning by other narcotics, undetermined, subsequent encounter
- T40.694SPoisoning by other narcotics, undetermined, sequela
- T40.695AAdverse effect of other narcotics, initial encounter
- T40.695DAdverse effect of other narcotics, subsequent encounter
- T40.695SAdverse effect of other narcotics, sequela
- T40.696AUnderdosing of other narcotics, initial encounter
- T40.696DUnderdosing of other narcotics, subsequent encounter
- T40.696SUnderdosing of other narcotics, sequela
T40.7…
36 codes
- T40.711APoisoning by cannabis, accidental (unintentional), initial encounter
- T40.711DPoisoning by cannabis, accidental (unintentional), subsequent encounter
- T40.711SPoisoning by cannabis, accidental (unintentional), sequela
- T40.712APoisoning by cannabis, intentional self-harm, initial encounter
- T40.712DPoisoning by cannabis, intentional self-harm, subsequent encounter
- T40.712SPoisoning by cannabis, intentional self-harm, sequela
- T40.713APoisoning by cannabis, assault, initial encounter
- T40.713DPoisoning by cannabis, assault, subsequent encounter
- T40.713SPoisoning by cannabis, assault, sequela
- T40.714APoisoning by cannabis, undetermined, initial encounter
- T40.714DPoisoning by cannabis, undetermined, subsequent encounter
- T40.714SPoisoning by cannabis, undetermined, sequela
- T40.715AAdverse effect of cannabis, initial encounter
- T40.715DAdverse effect of cannabis, subsequent encounter
- T40.715SAdverse effect of cannabis, sequela
- T40.716AUnderdosing of cannabis, initial encounter
- T40.716DUnderdosing of cannabis, subsequent encounter
- T40.716SUnderdosing of cannabis, sequela
- T40.721APoisoning by synthetic cannabinoids, accidental (unintentional), initial encounter
- T40.721DPoisoning by synthetic cannabinoids, accidental (unintentional), subsequent encounter
- T40.721SPoisoning by synthetic cannabinoids, accidental (unintentional), sequela
- T40.722APoisoning by synthetic cannabinoids, intentional self-harm, initial encounter
- T40.722DPoisoning by synthetic cannabinoids, intentional self-harm, subsequent encounter
- T40.722SPoisoning by synthetic cannabinoids, intentional self-harm, sequela
- T40.723APoisoning by synthetic cannabinoids, assault, initial encounter
- T40.723DPoisoning by synthetic cannabinoids, assault, subsequent encounter
- T40.723SPoisoning by synthetic cannabinoids, assault, sequela
- T40.724APoisoning by synthetic cannabinoids, undetermined, initial encounter
- T40.724DPoisoning by synthetic cannabinoids, undetermined, subsequent encounter
- T40.724SPoisoning by synthetic cannabinoids, undetermined, sequela
- T40.725AAdverse effect of synthetic cannabinoids, initial encounter
- T40.725DAdverse effect of synthetic cannabinoids, subsequent encounter
- T40.725SAdverse effect of synthetic cannabinoids, sequela
- T40.726AUnderdosing of synthetic cannabinoids, initial encounter
- T40.726DUnderdosing of synthetic cannabinoids, subsequent encounter
- T40.726SUnderdosing of synthetic cannabinoids, sequela
T40.8…
12 codes
- T40.8X1APoisoning by lysergide [LSD], accidental (unintentional), initial encounter
- T40.8X1DPoisoning by lysergide [LSD], accidental (unintentional), subsequent encounter
- T40.8X1SPoisoning by lysergide [LSD], accidental (unintentional), sequela
- T40.8X2APoisoning by lysergide [LSD], intentional self-harm, initial encounter
- T40.8X2DPoisoning by lysergide [LSD], intentional self-harm, subsequent encounter
- T40.8X2SPoisoning by lysergide [LSD], intentional self-harm, sequela
- T40.8X3APoisoning by lysergide [LSD], assault, initial encounter
- T40.8X3DPoisoning by lysergide [LSD], assault, subsequent encounter
- T40.8X3SPoisoning by lysergide [LSD], assault, sequela
- T40.8X4APoisoning by lysergide [LSD], undetermined, initial encounter
- T40.8X4DPoisoning by lysergide [LSD], undetermined, subsequent encounter
- T40.8X4SPoisoning by lysergide [LSD], undetermined, sequela
T40.9…
36 codes
- T40.901APoisoning by unspecified psychodysleptics [hallucinogens], accidental (unintentional), initial encounter
- T40.901DPoisoning by unspecified psychodysleptics [hallucinogens], accidental (unintentional), subsequent encounter
- T40.901SPoisoning by unspecified psychodysleptics [hallucinogens], accidental (unintentional), sequela
- T40.902APoisoning by unspecified psychodysleptics [hallucinogens], intentional self-harm, initial encounter
- T40.902DPoisoning by unspecified psychodysleptics [hallucinogens], intentional self-harm, subsequent encounter
- T40.902SPoisoning by unspecified psychodysleptics [hallucinogens], intentional self-harm, sequela
- T40.903APoisoning by unspecified psychodysleptics [hallucinogens], assault, initial encounter
- T40.903DPoisoning by unspecified psychodysleptics [hallucinogens], assault, subsequent encounter
- T40.903SPoisoning by unspecified psychodysleptics [hallucinogens], assault, sequela
- T40.904APoisoning by unspecified psychodysleptics [hallucinogens], undetermined, initial encounter
- T40.904DPoisoning by unspecified psychodysleptics [hallucinogens], undetermined, subsequent encounter
- T40.904SPoisoning by unspecified psychodysleptics [hallucinogens], undetermined, sequela
- T40.905AAdverse effect of unspecified psychodysleptics [hallucinogens], initial encounter
- T40.905DAdverse effect of unspecified psychodysleptics [hallucinogens], subsequent encounter
- T40.905SAdverse effect of unspecified psychodysleptics [hallucinogens], sequela
- T40.906AUnderdosing of unspecified psychodysleptics [hallucinogens], initial encounter
- T40.906DUnderdosing of unspecified psychodysleptics [hallucinogens], subsequent encounter
- T40.906SUnderdosing of unspecified psychodysleptics [hallucinogens], sequela
- T40.991APoisoning by other psychodysleptics [hallucinogens], accidental (unintentional), initial encounter
- T40.991DPoisoning by other psychodysleptics [hallucinogens], accidental (unintentional), subsequent encounter
- T40.991SPoisoning by other psychodysleptics [hallucinogens], accidental (unintentional), sequela
- T40.992APoisoning by other psychodysleptics [hallucinogens], intentional self-harm, initial encounter
- T40.992DPoisoning by other psychodysleptics [hallucinogens], intentional self-harm, subsequent encounter
- T40.992SPoisoning by other psychodysleptics [hallucinogens], intentional self-harm, sequela
- T40.993APoisoning by other psychodysleptics [hallucinogens], assault, initial encounter
- T40.993DPoisoning by other psychodysleptics [hallucinogens], assault, subsequent encounter
- T40.993SPoisoning by other psychodysleptics [hallucinogens], assault, sequela
- T40.994APoisoning by other psychodysleptics [hallucinogens], undetermined, initial encounter
- T40.994DPoisoning by other psychodysleptics [hallucinogens], undetermined, subsequent encounter
- T40.994SPoisoning by other psychodysleptics [hallucinogens], undetermined, sequela
- T40.995AAdverse effect of other psychodysleptics [hallucinogens], initial encounter
- T40.995DAdverse effect of other psychodysleptics [hallucinogens], subsequent encounter
- T40.995SAdverse effect of other psychodysleptics [hallucinogens], sequela
- T40.996AUnderdosing of other psychodysleptics [hallucinogens], initial encounter
- T40.996DUnderdosing of other psychodysleptics [hallucinogens], subsequent encounter
- T40.996SUnderdosing of other psychodysleptics [hallucinogens], sequela
Outside the US? T40 in the international WHO ICD-10 lists its inclusion and exclusion notes.
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ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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