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 Chapter XX
 
 Drugs, medicaments and biological substances causing adverse effects in therapeutic use - Y40-Y59
 
 Note:
For list of specific drugs classified under the fourth-character subdivisions, see Table of drugs and chemicals in Alphabetical Index.
 
Excludes:
accidents in the technique of administration of drugs, medicaments and biological substances in medical and surgical procedures ( Y60-Y69 )
 
Y40 Systemic antibiotics
Y41 Other systemic anti-infectives and antiparasitics
Y42 Hormones and their synthetic substitutes and antagonists, not elsewhere classified
Y43 Primarily systemic agents
Y44 Agents primarily affecting blood constituents
Y45 Analgesics, antipyretics and anti-inflammatory drugs
Y46 Antiepileptics and antiparkinsonism drugs
Y47 Sedatives, hypnotics and antianxiety drugs
Y48 Anaesthetics and therapeutic gases
Y49 Psychotropic drugs, not elsewhere classified
Y50 Central nervous system stimulants, not elsewhere classified
Y51 Drugs primarily affecting the autonomic nervous system
Y52 Agents primarily affecting the cardiovascular system
Y53 Agents primarily affecting the gastrointestinal system
Y54 Agents primarily affecting water-balance and mineral and uric acid metabolism
Y55 Agents primarily acting on smooth and skeletal muscles and the respiratory system
Y56 Topical agents primarily affecting skin and mucous membrane and ophthalmological, otorhinolaryngological and dental drugs
Y57 Other and unspecified drugs and medicaments
Y58 Bacterial vaccines
Y59 Other and unspecified vaccines and biological substances
 
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