Classification-Schedules

Classification 2025 Winter Edition

Worldwide source of medical classification resources

WI

Digestive System

Schedule Contents

Digestive System Reference Works. General Works Anatomy. Physiology Diseases. Diagnosis. Signs and Symptoms Gastrointestinal Tract Stomach Intestines (General) Small Intestine Large Intestine Peritoneum Anus. Rectum Liver. Biliary Tract Pancreas Abdominal Cavity Digestive System Surgical Procedures

Classify general works on the digestive system and its diseases in children in WS 310-312. Classify works on specific organs or diseases in children in WI.
Classify works on gastroenterologic nursing and nursing of patients with specific gastroenterologic diseases in WY 156.5

Digestive System Reference Works. General Works

WI 1

Organizations. Societies (General or not elsewhere classified) (Cutter from name of organization or society) (Table-G)
(Monographs and Serials)

Includes membership lists and administrative reports issued serially or separately. Classify directories in WI 22. Classify other serials issued by societies in W1. For academies and institutes, see WI 23-24.

WI 5

Collected works by several authors

WI 7

Collected works by individual authors

WI 9

Addresses. Essays. Lectures

WI 11

History (Table-G)

WI 11.1

General coverage (Not Table-G)

WI 13

Dictionaries. Encyclopedias
(Monographs and Serials)

WI 15

Classification. Terminology
(Monographs and Serials)

WI 16

Tables. Statistics. Surveys (Table-G)
(Monographs and Serials)

WI 16.1

General coverage (Not Table-G)
(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
(Monographs and Serials)

Classify here educational materials, e.g., outlines, questions and answers, programmed instruction, computer-assisted instruction, etc., regardless of format. Classify textbooks, regardless of format, by subject.

WI 19

Schools, departments, and faculties of gastroenterology (Table-G)
(Monographs and Serials)

Include here works on the history of schools. Classify courses of study, college catalogs, etc., in W 19.5.

WI 19.1

General coverage (Not Table-G)
(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

Classify works on the specialty alone here. Classify works on both the specialty and diseases in WI 100.

WI 22

Directories (Table-G)

WI 22.1

General coverage (Not Table-G)
(Monographs and Serials)

WI 23

Collective laboratories, academies, institutes, etc.

WI 24

Individual laboratories, academies, institutes, etc. (Cutter from name of institution)

WI 25

Laboratory manuals. Technique

WI 26

Equipment and supplies

Classify catalogs in W 26.

WI 26.5

Informatics. Electronic data processing. Computers (General)

Classify works on use for special subjects by subject.

WI 27

Collective hospitals, clinics, etc. (Table-G)

WI 27.1

General coverage (Not Table-G)

WI 28

Individual hospitals, clinics, etc. (Cutter from name of hospital) (Table-G)

WI 28.5

Collective museums, exhibitions, etc.

WI 28.6

Individual museums, exhibitions, etc. (Cutter from name of museum, etc.) (Table-G)

WI 32

Laws (Table-G)
(Monographs and Serials)

WI 32.1

General coverage (Not Table-G)
(Monographs and Serials)

WI 33

Discussion of law (Table-G)
(Monographs and Serials)

WI 33.1

General coverage (Not Table-G)
(Monographs and Serials)

WI 39

Handbooks. Resource guides
(Monographs and Serials)

WI 100

General works

Classify works on specialty and on the specialty and diseases here. Classify works on diseases alone in WI 140. Classify works on surgery of the digestive system or gastrointestinal tract in WI 980.

Anatomy. Physiology

WI 101

Anatomy. Histology. Embryology. Congenital abnormalities (General or not elsewhere classified)

WI 102

Physiology. Biochemistry. Digestion

[WI 113]

[This number not used]

Classify popular works on the digestive system with the particular topic.

Diseases. Diagnosis. Signs and Symptoms

WI 140

Diseases (General)

Classify works on both the specialty and diseases in WI 100.

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

Digestive system neoplasms

Classify here works on gastrointestinal neoplasms. Classify works on neoplasms of specific organ with the organ.

[WI 150]

[This number not used]

Classify works on aerophagy and flatulence in WI 143.

Gastrointestinal Tract

WI 190

Gastrointestinal tract

Classify works on surgery of the gastrointestinal tract in WI 980.

WI 195

Gastrointestinal diseases (General)

Classify works on dysentery in WC 280.

WI 200

Mouth

Classify here works dealing with the mouth as part of the gastrointestinal system; classify general works and works for the dentist in WU 101-102.

WI 210

Tongue

WI 212

Taste. Taste Buds. Taste Perception

WI 230

Salivary glands

WI 250

Esophagus

WI 255

Esophageal diseases (General)

WI 258

Deglutition disorders

WI 260

Esophageal neoplasms

Stomach

WI 300

General works

WI 301

Anatomy. Histology. Embryology. Congenital abnormalities

WI 302

Physiology

WI 306

Stomach diseases (General)

WI 308

Achlorhydria

WI 310

Gastritis

WI 320

Stomach neoplasms

WI 350

Peptic ulcer

WI 360

Stomach ulcer

WI 370

Duodenal ulcer

WI 380

Stomach surgery. Postgastrectomy syndromes

WI 387

Pylorus. Pyloric antrum. Pyloric stenosis

Intestines (General)

WI 400

General works

WI 402

Physiology

WI 405

Signs and symptoms

WI 407

Diarrhea

WI 409

Constipation

WI 412

Congenital abnormalities

WI 418

Intestinal diseases (General)

Classify works on dysentery in WC 280.

WI 420

Inflammation

WI 422

Crohn disease

WI 425

Diverticulitis. Diverticulum

WI 430

Intestinal polyps. Polyposis

WI 435

Intestinal neoplasms

WI 450

Intussusception. Volvulus

WI 460

Intestinal obstruction. Ileus

WI 470

Malabsorption syndromes

WI 471

Celiac disease

WI 480

Intestinal surgery

Small Intestine

WI 500

Small intestine. Mesentery

WI 505

Duodenum

Classify works on duodenal ulcer in WI 370.

WI 510

Jejunum

WI 512

Ileum

Large Intestine

WI 518

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 521

Colonic diseases (General)

WI 522

Inflammation

WI 528

Megacolon

WI 529

Colonic neoplasms. Polyps

Classify works on colorectal neoplasms here.

WI 530

Cecum

WI 535

Appendix

WI 560

Sigmoid

Peritoneum

WI 575

Peritoneum. Retroperitoneal space

Anus. Rectum

WI 600

General works

WI 603

Rectal diseases (General)

WI 605

Hemorrhoids. Fissure in ano. Rectal fistula

WI 610

Rectal neoplasms

Classify works on colorectal neoplasms in WI 529.

WI 620

Proctoscopy. Sigmoidoscopy

WI 650

Colorectal surgical procedures

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 diseases. Classify works on liver diseases only in WI 710. 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]

[This number not used]

Classify works on liver function in digestion in WI 702.

WI 710

Liver diseases (General)

Classify general works on the liver and liver diseases in WI 700.

WI 712

Hepatic insufficiency

WI 715

Hepatitis (General or not elsewhere classified)

WI 720

Liver circulation disorders. Portal system. Portal hypertension

WI 725

Liver cirrhosis

WI 730

Liver abscess

WI 735

Liver neoplasms

WI 740

Degenerative diseases. Hepatolenticular degeneration

WI 750

Biliary tract. Cholecystography

Classify works on gallbladder here.

WI 753

Biliary tract diseases (General)

WI 755

Cholecystitis. Cholelithiasis

WI 765

Biliary tract neoplasms

WI 770

Liver and biliary tract surgery

Pancreas

WI 800

General works

Classify works on the Islets of Langerhans in WK 800-885.

WI 802

Physiology. Secretions

WI 803

Pancreatic diseases (General)

WI 805

Pancreatitis

WI 810

Pancreatic neoplasms

WI 820

Cystic fibrosis

WI 830

Pancreatic surgery

Abdominal Cavity

Classify works on the abdomen in WE 757.

WI 900

General works

[WI 940]

[This number not used]

Classify works on the umbilicus in WE 757.

WI 950

Hernia

Classify works on hernias in general in QZ 140.

WI 955

Ventral

WI 960

Inguinal

WI 965

Femoral

WI 970

Abdominal neoplasms

Digestive System Surgical Procedures

WI 980

Digestive system surgical procedures (General or not elsewhere classified)

Classify general works on surgery of the digestive system or gastrointestinal tract here.