19th Century Schedule

Classification 2025 Summer Edition

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19th Century Schedule

Classify here works and reprints of works published between 1801-1913. Classify here translations of works originally published from 1801-1913 only if the translation itself is published from 1801-1913.

19th Century Schedule Outline

Class Number Ranges	Class Names
QS-QSB	Anatomy. Teratology. Histology. Embryology
QT-QTB	Physiology. Diet. Hygiene
QU-QVB	Biochemistry. Pharmacology. Pharmacy. Toxicology
QW-QX 22	Microbiology. Immunology. Parasitology
QY-QZA	Clinical Pathology. Pathology
W-WBN	Medicine. Public Health. Practice of Medicine
WC-WCK	Communicable Diseases
WD-WDF	Medicine in Selected Environments
WE-WEA	Musculoskeletal System
WF-WG 22	Respiratory System. Cardiovascular System
WH-WH 22	Hemic and Lymphatic Systems
WI-WIC	Digestive System
WJ-WJA	Urogenital System
WK-WKA	Endocrine System
WL-WMB	Nervous System. Psychiatry
WN-WN 22	Radiology
WO-WOB	Surgery. Military Surgery
WP-WQ 22	Gynecology. Obstetrics. Midwifery
WR-WR 22	Dermatology
WS-WS 22	Pediatrics
WT-WT 22	Geriatrics
WU-WUA	Dentistry
WV-WVB	Otolaryngology
WW-WW 22	Ophthalmology
WX-WX 22	Hospitals
WY-WYA	Nursing. Military Nursing

19th Century Schedule

Class Number	Class Names
QS	Anatomy. Teratology
QS 22	Directories (Table G)
QSA	Histology
QSB	Embryology
QT	Physiology
QT 22	Directories (Table G)
QTA	Hygiene (Use WA for hygiene as public health concept.)
QTB QTC	Diet Motion Sickness. Sunstroke. Hyperthermia
QU	Biochemistry
QU 22 QUA	Directories (Table G) Deficiency diseases. Metabolic diseases. Obesity
QV	Pharmacology. Pharmacy. Materia medica
QV 22	Directories (Table G)
QVA	Pharmacopoeias (Official)
QVB	Toxicology (including plant poisons) (Use QWB for animal poisons)
QW	Microbiology
QW 22	Directories (Table G)
QWA QWB	Immunology Animal poisons
QX	Parasitology
QX 22	Directories (Table G)
QY	Clinical pathology
[QY 22]	[Directories. Use QZ 22 ]
QZ	Pathology
QZ 22	Directories (Table G)
QZA	Neoplasms
W	Medicine (General)
W1	Serials, Periodicals
W2	Documents
W3	Congresses NLM no longer assigns W3 to newly acquired publications.
W4	Dissertations
W4 A	American dissertations
W5	Collections by several authors
W6	Pamphlet volumes
W 22	Directories (Table G)
W 26	Equipment and supplies
W 600	Medical jurisprudence
WA	Public health
WA 22	Directories (Table G)
WAA	Sanitation.Water supply
WAB	Military hygiene
WAC	Relief work. Disaster
WB	Practice of medicine
WB 22	Directories (Table G)
WBA	Popular medicine. Domestic medicine
WBB	Diagnosis
WBC	Therapeutics (General)
WBD	Dietetics. Diet therapy
WBE	Electric stimulation therapy. Magnetic field therapy. Galvanism
WBF	Hydrotherapy
WBG	Massage
WBH	Climatotherapy. Geography of disease. Medical topography
WBI	Health resorts. Balneology
WBJ	Special systems (General)
WBK	Homeopathy
WBL	Osteopathic medicine
[WBM]	[This number not used] Use WDE for Military medicine
[WBN]	[This number not used] Use WDF for Naval medicine
WC	Communicable diseases (General)
WC 22	Directories (Table G)
WCA	Sexually transmitted diseases
WCB	Cholera
WCC	Diphtheria
WCD	Influenza
WCE	Leprosy
WCF	Malaria
WCG	Plague
WCH	Smallpox
WCI	Typhoid fever
WCJ	Typhus fever
WCK WD [WDA]	Yellow fever Medicine in selected environments [This number not used]
	Use QUA for Deficiency diseases. Metabolic diseases. Obesity
[WDB]	[This number not used]
[WDC]	[This number not used] Use QWB for animal poisons; use QVB for plant poisons)
WDD WDE WDF	Barotrauma Use QTC for Motion Sickness. Sunstroke. Hyperthermia Military medicine Naval medicine
WE	Musculoskeletal system. Orthopedics
WE 22	Directories (Table G)
WEA	Fractures. Dislocations. Sprains
WF	Respiratory system
WF 22	Directories (Table G)
WFA	Tuberculosis
WG	Cardiovascular system
WG 22	Directories (Table G)
WH	Hemic and lymphatic systems
WH 22	Directories (Table G)
WI	Digestive system
WI 22	Directories (Table G)
WIA	Stomach
WIB	Anus and rectum
WIC	Liver
WJ	Urogenital system
WJ 22	Directories (Table G)
WJA	Male genitalia
WK	Endocrine system
WK 22	Directories (Table G)
WKA	Diabetes
WL	Nervous system
WL 22	Directories (Table G)
WLA	Epilepsies
WM	Psychiatry. Mental healing. Hypnosis therapy (Use BF for parapsychological aspects of hypnosis)
WM 22	Directories (Table G)
WMA	Substance-related disorders
WMB	Military psychiatry
WN	Radiology
WN 22	Directories (Table G)
WO	Surgery. Wounds and Injuries
WO 22	Directories (Table G)
WOA	Anesthesia
WOB	Military surgery
WP	Gynecology
WP 22	Directories (Table G)
WPA	Breast
WQ	Obstetrics. Midwifery
WQ 22	Directories (Table G)
WR	Dermatology
WR 22	Directories (Table G)
WS	Pediatrics
WS 22	Directories (Table G)
WT	Geriatrics. Chronic disease. Longevity
WT 22	Directories (Table G)
WU	Dentistry. Oral surgery
WU 22	Directories (Table G)
WUA	Military dentistry
WV	Otolaryngology. Nose
WV 22	Directories (Table G)
WVA	Ear
WVB	Throat. Larynx
WW	Ophthalmology
WW 22	Directories (Table G)
WX	Hospitals
WX 2	Serial reports of hospitals (Table G)
WX 22	Directories (Table G)
WY	Nursing
WY 22	Directories (Table G)
WYA	Military nursing
WZ	History of medicine Use WZ schedule in full.