The ICD-9 code range ACCIDENTAL POISONING BY DRUGS, MEDICINAL SUBSTANCES, AND BIOLOGICALS for E850-E858 is medical classification list by the World Health Organization (WHO).
Accidental poisoning by analgesics antipyretics and antirheumatics
Accidental poisoning by other sedatives and hypnotics
Accidental poisoning by tranquilizers
Accidental poisoning by other psychotropic agents
Accidental poisoning by other drugs acting on central and autonomic nervous system
Accidental poisoning by parasympatholytics (anticholinergics and antimuscarinics) and spasmolytics
Accidental poisoning by other specified drugs acting on central and autonomic nervous systems
Accidental poisoning by other drugs
Accidental poisoning by agents primarily acting on the smooth and skeletal muscles and respiratory system
Accidental poisoning by agents primarily affecting skin and mucous membrane ophthalmological otorhinolaryngological and dental drugs