NLM Classification Schedule WI

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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WI Digestive System
	Classify general works on the digestive system and its diseases in children in WS 310-312. Classify gastroenterologic nursing in WY 156.5. Classify works on nursing of patients with specific diseases in WY number also. Classify works on liver and biliary tract treated together in WI 700-740 and in WI 770 if applicable. Classify works on gallbladder and other specific parts in WI 750-765 as indicated.
	WI 1-150 Reference Works. General Works
	WI 101-113 Anatomy. Physiology. Hygiene
	WI 140-150 Diseases. Diagnosis. Signs and Symptoms
	WI 200-250 Stomatognathic System. Esophagus
	WI 300-387 Stomach
	WI 400-575 Intestines
	WI 400-480 Intestines (General)
	WI 500-512 Small Intestine
	WI 520-560 Large Intestine
	WI 575 Peritoneum
	WI 600-650 Anus. Rectum
	WI 700-770 Liver. Biliary Tract
	WI 800-830 Pancreas
	WI 900-970 Abdomen. Abdominal Surgery
	Reference Works. General Works

WI 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)
WI 5	By several authors
WI 7	By individual authors

WI 9	Addresses. Essays. Lectures (General)

WI 11	History (Table G)
WI 11.1	General coverage (Not Table G)

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

WI 15	Classification. Terminology (Used for both monographs and serials)

WI 16	Tables. Statistics (Used for both monographs and serials)

WI 17	Atlases. Pictorial works
	Classify atlases limited to a particular part of the system here also.

WI 18	Education
	Classify here works about education.

WI 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.

WI 19	Schools, departments, and faculties of gastroenterology (Used for both monographs and serials)

WI 20	Research (General)
	Classify here works about research in general. Classify works about research on a particular subject by subject.

WI 21	Gastroenterology as a profession. Ethics. Peer review

WI 22	Directories (Table G) (Used for both monographs and serials)
WI 22.1	General coverage (Not Table G) (Used for both monographs and serials)
	Laboratories, institutes, etc.
WI 23	Collective
WI 24	Individual (Cutter from name of institution)

WI 25	Laboratory manuals. Technique

WI 26	Equipment and supplies
	Classify catalogs in W 26.

WI 26.5	Informatics. Automatic data processing. Computers (General)
	Classify works on use for special subjects by subject.
	Hospitals, clinics, etc.
WI 27	Collective (Table G)
WI 27.1	General coverage (Not Table G)
WI 28	Individual (Cutter from name of hospital) (Table G)
	Museums, exhibitions, etc.
WI 28.5	Collective
WI 28.6	Individual (Cutter from name of museum, etc.)

WI 32	Laws (Table G) (Used for both monographs and serials)
WI 32.1	General coverage (Not Table G) (Used for both monographs and serials)
WI 33	Discussion of law (Table G) (Used for both monographs and serials)
WI 33.1	General coverage (Not Table G) (Used for both monographs and serials)

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

WI 100	General works
	Classify works on surgery of the digestive or gastrointestinal system in general in WI 900.
	Anatomy. Physiology. Hygiene

WI 101	Anatomy. Histology. Embryology. Abnormalities

WI 102	Physiology. Biochemistry. Digestion

WI 113	Popular works (General). Hygiene
	Diseases. Diagnosis. Signs and Symptoms

WI 140	Diseases (General)

WI 141	Examination. Diagnosis. Diagnostic methods. Monitoring (General)
	Classify works on examination of organ with the organ.

WI 143	Signs and symptoms
WI 145	Dyspepsia and related conditions
WI 146	Nausea. Vomiting
WI 147	Abdominal pain

WI 149	Neoplasms
	Classify works on neoplasms of specific organ with the organ.

WI 150	Functional disorders
	Stomatognathic System. Esophagus

WI 200	Lips. Mouth
	Classify works for the dentist in WU 140; on neoplasms written for the dentist in WU 280.

WI 210	Tongue. Taste buds

WI 230	Salivary glands

WI 250	Esophagus
	Stomach

WI 300	General works
	Classify works on analysis of stomach contents in QY 130.

WI 301	Anatomy. Histology. Embryology. Congenital abnormalities

WI 302	Physiology

WI 308	Achlorhydria

WI 310	Gastritis

WI 320	Neoplasms

WI 350	Peptic ulcer
WI 360	Stomach ulcer
WI 370	Duodenal ulcer

WI 380	Surgery. Postgastrectomy syndromes

WI 387	Pylorus. Pyloric antrum. Pyloric stenosis
	Intestines Intestines (General)

WI 400	General works

WI 402	Physiology

WI 405	Signs and symptoms
WI 407	Diarrhea
WI 409	Constipation

WI 412	Congenital malformations

WI 420	Inflammation (e.g., Enteritis; inflammatory bowel diseases)
	Classify works on regional enteritis in WI 512.

WI 425	Diverticulitis. Diverticulum

WI 430	Polyps. Polyposis

WI 435	Neoplasms

WI 450	Intussusception. Volvulus

WI 460	Intestinal obstruction. Ileus

WI 480	Surgery (General)
	Small Intestine

WI 500	Small intestine. Mesentery
WI 505	Duodenum
	Classify works on duodenal ulcer in WI 370; on analysis of duodenal contents in QY 130.
WI 510	Jejunum
WI 512	Ileum
	Large Intestine

WI 520	Colon
	Classify works on diverticulitis and diverticulum in WI 425. Cf. WC 280 Dysentery. Classify Colorectal surgery in WI 650.
WI 522	Inflammation (e.g., Colitis)
WI 528	Megacolon (e.g., Hirschsprung's disease)
WI 529	Neoplasms. Polyps
	Classify works on colorectal neoplasms here.

WI 530	Cecum

WI 535	Appendix

WI 560	Sigmoid
	Peritoneum

WI 575	Peritoneum. Omentum. Peritoneal cavity. Retroperitoneal space
	Anus. Rectum

WI 600	General works

WI 605	Hemorrhoids. Fissure in ano. Rectal fistula

WI 610	Neoplasms
	Classify works on colorectal neoplasms in WI 529.

WI 620	Proctoscopy. Sigmoidoscopy

WI 650	Proctological surgery. Colorectal surgery
	Liver. Biliary Tract

WI 700	General works
	Classify general works dealing with the liver and biliary tract here, as well as general works on the liver and liver dieases only. Classify general works on the biliary tract and biliary tract diseases in WI 750. Classify works on surgery of the liver and/or biliary tract in WI 770.
WI 702	Physiology. Liver circulation
WI 703	Bile. Bile acids, alcohols, and salts. Jaundice (General or not elsewhere classified)
WI 704	Liver function in food metabolism
WI 715	Hepatitis (General or not elsewhere classified)
WI 720	Circulatory disorders. Portal system. Portal hypertension
WI 725	Cirrhosis

WI 730	Abscess
WI 735	Neoplasms
WI 740	Degenerative diseases. Hepatolenticular degeneration

WI 750	Biliary tract. Cholecystography
WI 755	Cholecystitis. Cholelithiasis
WI 765	Neoplasms

WI 770	Surgery (General)
	Pancreas

WI 800	General works
	Classify works on the islands of Langerhans in WK 800-885.

WI 802	Physiology. Secretions

WI 805	Pancreatitis

WI 810	Neoplasms. Cysts

WI 820	Cystic fibrosis

WI 830	Surgery (General)
	Abdomen. Abdominal Surgery
	Classify works on surgery of the digestive or gastrointestinal system in general here.

WI 900	General works

WI 940	Umbilical region

WI 950	Hernia
WI 955	Ventral
WI 960	Inguinal
WI 965	Femoral

WI 970	Neoplasms