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SubstancePoisoning, Accidental (unintentional)Poisoning, Intentional self-harmPoisoning, AssaultPoisoning, UndeterminedAdverse effectUnderdosing
Narcotic (drug)T40.601T40.602T40.603T40.604T40.605T40.606
    analgesic NECT40.601T40.602T40.603T40.604T40.605T40.606
    antagonistT50.7X1T50.7X2T50.7X3T50.7X4T50.7X5T50.7X6
    specified NECT40.691T40.692T40.693T40.694T40.695T40.696
    syntheticT40.4X1T40.4X2T40.4X3T40.4X4T40.4X5T40.4X6