ICD-10 block
Y40–Y59 Drugs, medicaments and biological substances causing adverse effects in therapeutic use
The block Y40–Y59 of ICD-10 is titled “Drugs, medicaments and biological substances causing adverse effects in therapeutic use”. It is part of Chapter XX, External causes of morbidity and mortality, and holds 20 groups.
What Y40–Y59 excludes
Conditions that look similar but belong under another code.
- accidents in the technique of administration of drugs, medicaments and biological substances in medical and surgical procedures Y60-Y69
Coding notes
- For list of specific drugs classified under the fourth-character subdivisions, see Table of drugs and chemicals in Alphabetical Index.
Codes in Y40–Y59
- Y42.0Glucocorticoids and synthetic analogues
- Y42.1Thyroid hormones and substitutes
- Y42.2Antithyroid drugs
- Y42.3Insulin and oral hypoglycaemic [antidiabetic] drugs
- Y42.4Oral contraceptives
- Y42.5Other estrogens and progestogens
- Y42.6Antigonadotrophins, antiestrogens, antiandrogens, not elsewhere classified
- Y42.7Androgens and anabolic congeners
- Y42.8Other and unspecified hormones and their synthetic substitutes
- Y42.9Other and unspecified hormone antagonists
- Y43.0Antiallergic and antiemetic drugs
- Y43.1Antineoplastic antimetabolites
- Y43.2Antineoplastic natural products
- Y43.3Other antineoplastic drugs
- Y43.4Immunosuppressive agents
- Y43.5Acidifying and alkalizing agents
- Y43.6Enzymes, not elsewhere classified
- Y43.8Other primarily systemic agents, not elsewhere classified
- Y43.9Primarily systemic agent, unspecified
- Y44.0Iron preparations and other anti-hypochromic-anaemia preparations
- Y44.1Vitamin B12, folic acid and other anti-megaloblastic-anaemia preparations
- Y44.2Anticoagulants
- Y44.3Anticoagulant antagonists, vitamin K and other coagulants
- Y44.4Antithrombotic drugs [platelet-aggregation inhibitors]
- Y44.5Thrombolytic drugs
- Y44.6Natural blood and blood products
- Y44.7Plasma substitutes
- Y44.9Other and unspecified agents affecting blood constituents
- Y49.0Tricyclic and tetracyclic antidepressants
- Y49.1Monoamine-oxidase-inhibitor antidepressants
- Y49.2Other and unspecified antidepressants
- Y49.3Phenothiazine antipsychotics and neuroleptics
- Y49.4Butyrophenone and thioxanthene neuroleptics
- Y49.5Other antipsychotics and neuroleptics
- Y49.6Psychodysleptics [hallucinogens]
- Y49.7Psychostimulants with abuse potential
- Y49.8Other psychotropic drugs, not elsewhere classified
- Y49.9Psychotropic drug, unspecified
- Y51.0Anticholinesterase agents
- Y51.1Other parasympathomimetics [cholinergics]
- Y51.2Ganglionic blocking drugs, not elsewhere classified
- Y51.3Other parasympatholytics [anticholinergics and antimuscarinics] and spasmolytics, not elsewhere classified
- Y51.4Predominantly alpha-adrenoreceptor agonists, not elsewhere classified
- Y51.5Predominantly beta-adrenoreceptor agonists, not elsewhere classified
- Y51.6Alpha-adrenoreceptor antagonists, not elsewhere classified
- Y51.7Beta-adrenoreceptor antagonists, not elsewhere classified
- Y51.8Centrally acting and adrenergic-neuron-blocking agents, not elsewhere classified
- Y51.9Other and unspecified drugs primarily affecting the autonomic nervous system
- Y52.0Cardiac-stimulant glycosides and drugs of similar action
- Y52.1Calcium-channel blockers
- Y52.2Other antidysrhythmic drugs, not elsewhere classified
- Y52.3Coronary vasodilators, not elsewhere classified
- Y52.4Angiotensin-converting-enzyme inhibitors
- Y52.5Other antihypertensive drugs, not elsewhere classified
- Y52.6Antihyperlipidaemic and antiarteriosclerotic drugs
- Y52.7Peripheral vasodilators
- Y52.8Antivaricose drugs, including sclerosing agents
- Y52.9Other and unspecified agents primarily affecting the cardiovascular system
- Y53.0Histamine H2-receptor antagonists
- Y53.1Other antacids and anti-gastric-secretion drugs
- Y53.2Stimulant laxatives
- Y53.3Saline and osmotic laxatives
- Y53.4Other laxatives
- Y53.5Digestants
- Y53.6Antidiarrhoeal drugs
- Y53.7Emetics
- Y53.8Other agents primarily affecting the gastrointestinal system
- Y53.9Agent primarily affecting the gastrointestinal system, unspecified
- Y54.0Mineralocorticoids
- Y54.1Mineralocorticoid antagonists [aldosterone antagonists]
- Y54.2Carbonic-anhydrase inhibitors
- Y54.3Benzothiadiazine derivatives
- Y54.4Loop [high-ceiling] diuretics
- Y54.5Other diuretics
- Y54.6Electrolytic, caloric and water-balance agents
- Y54.7Agents affecting calcification
- Y54.8Agents affecting uric acid metabolism
- Y54.9Mineral salts, not elsewhere classified
- Y55.0Oxytocic drugs
- Y55.1Skeletal muscle relaxants [neuromuscular blocking agents]
- Y55.2Other and unspecified agents primarily acting on muscles
- Y55.3Antitussives
- Y55.4Expectorants
- Y55.5Anti-common-cold drugs
- Y55.6Antiasthmatics, not elsewhere classified
- Y55.7Other and unspecified agents primarily acting on the respiratory system
- Y56.0Local antifungal, anti-infective and anti-inflammatory drugs, not elsewhere classified
- Y56.1Antipruritics
- Y56.2Local astringents and local detergents
- Y56.3Emollients, demulcents and protectants
- Y56.4Keratolytics, keratoplastics and other hair treatment drugs and preparations
- Y56.5Ophthalmological drugs and preparations
- Y56.6Otorhinolaryngological drugs and preparations
- Y56.7Dental drugs, topically applied
- Y56.8Other topical agents
- Y56.9Topical agent, unspecified
- Y57.0Appetite depressants [anorectics]
- Y57.1Lipotropic drugs
- Y57.2Antidotes and chelating agents, not elsewhere classified
- Y57.3Alcohol deterrents
- Y57.4Pharmaceutical excipients
- Y57.5X-ray contrast media
- Y57.6Other diagnostic agents
- Y57.7Vitamins, not elsewhere classified
- Y57.8Other drugs and medicaments
- Y57.9Drug or medicament, unspecified
- Y58.0BCG vaccine
- Y58.1Typhoid and paratyphoid vaccine
- Y58.2Cholera vaccine
- Y58.3Plague vaccine
- Y58.4Tetanus vaccine
- Y58.5Diphtheria vaccine
- Y58.6Pertussis vaccine, including combinations with a pertussis component
- Y58.8Mixed bacterial vaccines, except combinations with a pertussis component
- Y58.9Other and unspecified bacterial vaccines
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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