The classification of Medical and Health Sciences books follows the National Library of Medicine (NLM) Classification system, as follows:
| QS Human Anatomy | QT Physiology | QU Biochemistry, Cell Biology and Genetics |
| QV Pharmacology | QW Microbiology and Immunology | QX Parasitology |
| QY Clinical Laboratory Pathology | QZ Pathology |
| W General Medicine. Health Professions | WA Public Health | WB Practice of Medicine |
| WC Communicable Diseases | WD 100 Deficiency Diseases | WD 200 Metabolic Diseases |
| WD 300 Diseases of Allergy | WD 400 Animal Poisons | WD 500 Plant Poisons |
| WD 600 Disorders and Injuries of Environmental Origin | WD 700 Aviation and Space Medicine | WE Musculoskeletal System |
| WF Respiratory System | WG Cardiovascular System | WH Hemic and Lymphatic Systems |
| WI Digestive System | WJ Urogenital System | WK Endocrine System |
| WL Nervous System | WM Psychiatry | WN Radiology, Diagnostic Imaging |
| WO Surgery | WP Gynecology | WQ Obstetrics |
| WR Dermatology | WS Pediatrics | WT Geriatrics, Chronic disease |
| WU Dentistry, Oral surgery | WV Ophthalmology | WW Ophthalmology |
| WX Hospitals | WY History of Medicine. Medical Miscellany | WZ History of Medicine |
