NLM Classification Schedule WZ

QS QT QU QV QW QX QY QZ W WA WB WC WD WE WF WG WH WI WJ WK WL WM WN WO WP WQ WR WS WT WU WV WW WX WY WZ

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WZ History of Medicine
	Classify history of a particular subject with the subject, e.g., History of surgery WO 11.
	WZ 1-40 Reference Works. General Works
	WZ 51-80.5 History, By Period, Locality, etc.
	WZ 100-150 Biography
	WZ 220-225 Manuscripts
	WZ 230-260 Early Printed Books
	WZ 270 Americana
	WZ 290-294 Modern Editions and Commentaries of Early Works
	WZ 305-350 Miscellany Relating to Medicine
	Reference Works. General Works

WZ 1	Societies (Cutter from name of society) (Used for both monographs and serials)
	Includes ephemeral membership lists issued serially or separately. Classify substantial lists with directories. Classify annual reports, journals, etc. in W1.
	Collected works (General)
WZ 5	By several authors
WZ 7	By individual authors

WZ 9	Addresses. Essays. Lectures (General)

[WZ 11]	[This number not used]

WZ 13	Dictionaries. Encyclopedias (Used for both monographs and serials)

WZ 17	Atlases. Pictorial works

WZ 18	Education
	Classify here works about education.

WZ 18.2	Educational materials (Used for both monographs and serials)
	Classify here educational materials, e.g., outlines, questions and answers, programmed instruction, catalogs, computer-assisted instruction, etc., regardless of format. Classify textbooks, regardless of format, by subject.

WZ 22	Directories (Table G) (Used for both monographs and serials)
WZ 22.1	General coverage (Not Table G) (Used for both monographs and serials)

WZ 23	Institutes (Cutter from name of institute)
	Classify here histories of institutes devoted to medical history; classify other institutes with the field
	Museums, exhibitions, etc.
WZ 27	Collective
WZ 28	Individual (Cutter from name of museum)

[WZ 29]	[This number not used]
	Classify handbooks on history of medicine in WZ 39

WZ 30	Chronologies

WZ 39	Handbooks. Resource guides (Used for both monographs and serials)

WZ 40	General works
	History, By Period, Locality, etc.

WZ 51	Ancient (before 500 C.E.)
	Classify here all works regardless of locality or special group

WZ 54	Medieval (500-1450 C.E.)
	Classify here all works regardless of locality or special group

WZ 55	Modern (1451 C.E.- ) (General)
	Prefer classification by locality or special group
WZ 56	1451-1800 C.E.
WZ 59	1801 C.E.-
WZ 60	19th century
WZ 64	20th century
WZ 65	21st century

WZ 70	History (By locality) (Table G)

WZ 80	History (Special groups, general or not elsewhere classified)
	For groups not listed below, prefer classification by locality WZ 70 when applicable.
WZ 80.5	Specific groups, A-Z
WZ 80.5.A8	Arabic and Islamic groups
WZ 80.5.B5	African Continental Ancestry Group
WZ 80.5.H6	Hindu
WZ 80.5.I3	American Indians. Inuits
WZ 80.5.J3	Jews
WZ 80.5.O6	Asian
WZ 80.5.W5	Women
	Biography

WZ 100	Individual biography (Cutter from name of biographee)
	Classify here biographies and bibliographies of persons in the medical field, allied health sciences, preclinical sciences and other related fields. Cf. WZ 294 Modern criticism and bibliographies of early works. Include here works about two persons or a family, e.g., the Mayos.

WZ 112	Collective biography (General or not specified below) (Used for both monographs and serials)
	Classify here collective biographies in the fields of medicine, allied health, and the preclinical sciences by specialty. Classify collective biographies by period, locality, and ethnic or other special groups in WZ 121-150. Classify collective biographies of persons outside the field of medicine in the appropriate LC schedule.
WZ 112.5	By specialty, A-Z (Used for both monographs and serials)
	Classify biography of individuals in WZ 100 regardless of specialty.
WZ 112.5.A2	Allied health personnel
WZ 112.5.A6	Anatomists
WZ 112.5.B3	Biologists
WZ 112.5.C2	Cardiologists
WZ 112.5.D3	Dentists
WZ 112.5.D4	Dermatologists
WZ 112.5.G2	Gastroenterologists
WZ 112.5.G4	Geneticists
WZ 112.5.I5	Immunologists
WZ 112.5.M4	Military physicians and surgeons, etc.
WZ 112.5.N4	Neurologists, neurosurgeons, etc.
WZ 112.5.N8	Nurses
WZ 112.5.O5	Oncologists
WZ 112.5.O7	Ophthalmologists, optometrists, etc.
WZ 112.5.O75	Orthopedists
WZ 112.5.O8	Otolaryngologists
WZ 112.5.P15	Parasitologists
WZ 112.5.P2	Pathologists
WZ 112.5.P3	Pediatricians
WZ 112.5.P4	Pharmacists
WZ 112.5.P5	Physiologists
WZ 112.5.P6	Psychiatrists
WZ 112.5.R2	Radiologists
WZ 112.5.S8	Surgeons
	Cf. WZ 112.5.M4 above.
	Collective biography (By period)
	Prefer specialty numbers above, or if not applicable, locality number below.
WZ 121	Ancient (before 500 C.E.) (Used for both monographs and serials)
WZ 124	Medieval (500-1450 C.E.) (Used for both monographs and serials)
WZ 126	1451-1800 C.E. (Used for both monographs and serials)
WZ 129	1801 C.E.- (Used for both monographs and serials)
WZ 132	19th century (Used for both monographs and serials)
WZ 134	20th century (Used for both monographs and serials)

WZ 140	Collective biography (By locality) (Table G) (Used for both monographs and serials)
	Prefer classification by specialty if applicable.

WZ 150	Collective biography (Special groups) (Used for both monographs and serials) (e.g., African-American physicians, Women physicians, etc.)
	Prefer classification by specialty if applicable.
	Manuscripts

WZ 220	Early Western manuscripts
	Note that at NLM western manuscripts produced before 1601 are classified in WZ 220, those produced after 1601 are classified as MS B (Manuscripts Books), MS C (Manuscripts Collections), or MS F (Manuscripts Oversize books).

WZ 225	Other early manuscripts
	Early Printed Books
	Works published before 1801 (or later if considered Americana) are not classed by subject; instead, they are arranged alphabetically by author under classification number for period during which they were printed. These numbers are used only for original publications. Reproductions are classified in WZ 290.

WZ 230	Incunabula
	pre-1501

WZ 240	XVI century

WZ 250	XVII century

WZ 260	XVIII century
	For 19th century publications see separate schedule.
	Americana
	This number is used only for original publications. Reproductions are classified in WZ 290.

WZ 270	Americana
	The closing dates given in the following table (based on the American Imprints Inventory for the U.S.) will be used to determine inclusion in this class.
	North and South America (except U.S.), 1820
	United States
	Alabama, 1840
	Alaska, 1890
	Arizona, 1890
	Arkansas, 1870
	California, 1875
	Colorado, 1876
	Connecticut, 1820
	District of Columbia, 1820
	Delaware, 1820
	Florida, 1860
	Georgia, 1820
	Hawaii, 1860
	Idaho, 1890
	Illinois (except Chicago), 1850
	Chicago, 1871
	Indiana, 1850
	Iowa, 1860
	Kansas, 1875
	Kentucky, 1830
	Louisiana, 1820
	Maine, 1820
	Maryland, 1820
	Massachusetts, 1820
	Michigan, 1850
	Minnesota, 1865
	Mississippi, 1840
	Missouri, 1850
	Montana, 1890
	Nebraska, 1875
	Nevada, 1890
	New Hampshire, 1820
	New Jersey, 1820
	New Mexico, 1875
	New York (except N.Y. City, Brooklyn, and Hudson River towns), 1850
	Brooklyn, 1825
	Hudson River towns, e.g., Poughkeepsie, Hudson, Troy, Albany, 1830
	New York City, 1820
	North Carolina, 1820
	North Dakota, 1890
	Ohio, 1840
	Oklahoma, 1870
	Oregon, 1875
	Pennsylvania (except Philadelphia), 1830
	Philadelphia, 1820
	Rhode Island, 1820
	South Carolina, 1820
	South Dakota, 1890
	Tennessee, 1840
	Texas, 1860
	Utah, 1890
	Vermont, 1820
	Virginia, 1820
	Washington, 1875
	West Virginia, 1830
	Wisconsin, 1850
	Wyoming, 1890
	Modern Editions and Commentaries of Early Works

WZ 290	Modern versions of early works
	Classify here reprints, facsimiles, or preservation microform of works (i.e., not new editions) originally published before 1801, and reprints of Americana originally published before the dates as listed at WZ 270. (Cf. 19th Century schedule for works and reprints of works published 1801-1913.)

WZ 292	Modern collections of early works (Used for both monographs and serials)
	Classify here collections (including those serially issued) which contain pre-1801 works of three or more authors. Classify works of only two authors in WZ 290 with the first author.

WZ 294	Modern commentaries of early works and bibliographies of single titles (Cutter from work being criticized)
	Classify here studies, commentaries, etc, of pre-1801 works including Americana unless they are largely the biography of one or two authors, in which case classify them in WZ 100. Classify in WZ 290 works that include the original text unless it is decidedly subordinate to the commentary. Classify here a bibliography of a single work. Cf. WZ 100 for bibliography of a single author's works.
	Miscellany Relating to Medicine

WZ 305	Anecdotes. Humor. Light verse
WZ 305.5	Surgery. Hospitalization

WZ 308	Curiosities

WZ 309	Folklore. Proverbs. Superstitions

WZ 310	Quacks. Quackery
	Classify here works the subject of which the author considers quackery. Works on special systems of therapeutics are classed in WB 890-962.

WZ 313	Biographical clinics (Diagnosis of diseases of famous persons, derived from records, memoirs, letters, portraits, etc.). (Cutter from name of biographee; collective, cutter from main entry)

WZ 320	Grave robbing. Resurrectionists

WZ 330	Medicine, as depicted in art and literature (e.g., Medicine in the works of Rabelais)
	Cf. WM 49 Art and literature as related to psychiatry.

WZ 332	Anniversaries and special events
	Classify here general works only. Classify material on specific events by subject.

WZ 334	Emblems, insignia, etc.

WZ 336	Caricatures. Cartoons

WZ 340	Numismatics, philately, bookplates, etc.

WZ 345	Medical writing and publishing. Historiography

WZ 348	Medical illustration (General)

WZ 350	Literary and artistic works by physicians and other association items
	Cf. WZ 330 Medicine in art and literature.