National Library of Medicine Subject Areas


HSL uses the National Library of Medicine classification system to assign call numbers which organize books into broad subject areas.

Consult the UB Libraries Online Catalog or The National Library of Medicine to identify books, journals, and media in your subject area. Be sure to check the UB Libraries Online Catalog for local holdings.


Call Numbers Arranged by Subject Area

NLM Subject Area NLM Call Number
Anatomy QS
Animal Poisons WD 400
Aviation and Space Medicine WD 700
Biochemistry QU
Cardiovascular System WG
Chronic Disease WT
Communicable Diseases WC
Dentistry WU
Dermatology WR
Diagnostic Imaging WN
Digestive System WI
Diseases and Injuries Caused by Physical Agents WD 600
Endocrine System WK
Geriatrics WT
Gynecology WP
Health Professions W
Hemic System WH
History of Medicine WZ
Hospitals and other Health Facilities WX
Hypersensitivity WD 300
Immunologic and Collagen Diseases WD 300
Immunology QW
Lymphatic System WH
Metabolic Diseases WD 200
Microbiology QW
Musculoskeletal System WE
Nervous System WL
Nursing WY
Nutrition Disorders WD 100
Obstetrics WQ
Ophthalmology WW
Oral Diseases WU
Otolaryngology WV
Parasitology QX
Pathology QZ
Pathology, Clinical QY
Pediatrics WS
Pharmacology QV
Physiology QT
Plant Poisons WD 500
Practice of Medicine WB
Psychiatry WM
Public Health WA
Radiology WN
Respiratory System WF
Surgery WO
Urogenital System WJ

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URL: http://ublib.buffalo.edu/hsl/coll/nlm.html Created: July 14, 2000 Revised: June 4, 2004