| A - ANATOMY 
 | Deleted term |  | Concept absorbed by | 
 
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| A11 - CELLS 
 
 
 
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| B - ORGANISMS 
 | Deleted term |  | Concept absorbed by | 
 
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| B01 - ANIMALS 
 B03 - BACTERIA
 
 B04 - VIRUSES
 
 B06 - PLANTS
 
 
 
 
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| C - DISEASES 
 | Deleted term |  | Concept absorbed by | 
 
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| C04 - NEOPLASMS 
 C10 - NERVOUS SYSTEM DISEASES
 
 C13 - FEMALE GENITAL DISEASES AND PREGNANCY COMPLICATIONS
 
 C18 - NUTRITIONAL AND METABOLIC DISEASES
 
 
 
 
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| D - CHEMICALS AND DRUGS 
 | Deleted term |  | Concept absorbed by | 
 
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| D03 - HETEROCYCLIC COMPOUNDS 
 D06 - HORMONES, HORMONE SUBSTITUTES, AND HORMONE ANTAGONISTS
 
 D08 - ENZYMES, COENZYMES, AND ENZYME INHIBITORS
 
 D09 - CARBOHYDRATES AND HYPOGLYCEMIC AGENTS
 
 D12 - AMINO ACIDS, PEPTIDES, AND PROTEINS
 
 D24 - IMMUNOLOGIC AND BIOLOGICAL FACTORS
 
 D27 - CHEMICAL ACTIONS AND USES
 
 
 
 
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| E - ANALYTICAL, DIAGNOSTIC AND THERAPEUTIC TECHNIQUES AND EQUIPMENT 
 | Deleted term |  | Concept absorbed by | 
 
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| E01 - DIAGNOSIS 
 E05 - INVESTIGATIVE TECHNIQUES
 
 
 
 
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| G - BIOLOGICAL SCIENCES 
 | Deleted term |  | Concept absorbed by | 
 
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| G04 - BIOLOGICAL PHENOMENA, CELL PHENOMENA, AND IMMUNITY 
 G05 - GENETICS
 
 G07 - PHYSIOLOGICAL PROCESSES
 
 G08 - REPRODUCTIVE AND URINARY PHYSIOLOGY
 
 
 
 
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| K - HUMANITIES 
 | Deleted term |  | Concept absorbed by | 
 
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| K01 - HUMANITIES 
 | History of Medicine, 15th Cent. |  | History, 15th Century |  | History of Medicine, 16th Cent. |  | History, 16th Century |  | History of Medicine, 17th Cent. |  | History, 17th Century |  | History of Medicine, 18th Cent. |  | History, 18th Century |  | History of Medicine, 19th Cent. |  | History, 19th Century |  | History of Medicine, 20th Cent. |  | History, 20th Century |  | History of Medicine, 21st Cent. |  | History, 21st Century |  | History of Medicine, Ancient |  | History, Ancient |  | History of Medicine, Early Modern |  | History, Early Modern 1451-1600 |  | History of Medicine, Medieval |  | History, Medieval |  | History of Medicine, Modern |  | History, Modern 1601- | 
 
 
 
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