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Table 1 Diagnosis and procedure codes selected for the study

From: Comparing administrative and survey data for ascertaining cases of irritable bowel syndrome: a population-based investigation

Description

ICD-9-CM Diagnosis & Procedure Codes

ICD-10-CA Diagnosis & Procedure Codes

Irritable bowel syndrome

564.1

K58

Other bowel disorders

  

Crohn's disease

555

K50

Ulcerative colitis

556

K51

IBS-related diagnoses

  

Gastric ulcer

531

K25

Duodenal ulcer

532

K26

Peptic ulcer

533

K27

Gastrojejunal ulcer

534

K28

Gastritis and duodenitis

535

K29

Disorders of functions of the stomach

536

K30, K31.0, K31.8, K31.9, R11

Other disorders of stomach and duodenum

537

K31.1 - K31.7

Appendicitis

540, 543

K35, K38.0, K38.8

Vascular insufficiency of intestine

557

K55

Intestinal obstruction

560

K56

Diverticula of intestine

562

K57

Necrosis of liver

570

K72

Chronic liver disease

571

K70, K73.9, K73.8, K74.5, K76.0, K76.9

Liver abscess & sequelae

572

K75.0, K75.1, K72.9, K76.6, K76.7, K76.8

Other disorders of liver

573

K76.1, K77.0, K75.9, K76.3, K76.8, K76.9

Cholelithiasis

574

K80

Other disorders of gallbladder

575

K81.0, K81.8, K82

Other disorders of biliary tract

576

K91.5, K83

Diseases of pancreas

577

K85, K86.1, K86.2, K86.8, K86.9

Intestinal malabsorption

579

K90, K91.2

Symptoms: digestive system

787

R11, R12, R13, R14, R15

Symptoms: urinary system

788

N23, N39.4, R30, R32, R33, R34, R35, R36, R39

Symptoms: abdomen and pelvis

789

R10, R16, R18, R19

Endometriosis

617

N80

Pain and other symptoms: female genital organs

625

N94

Anxiety disorders

300

F34.1, F40.1, F40.2, F41.0, F41.1, F41.8, F41.9, F42.8, F44.8, F44.9, F45.2

Intestinal infections: other organisms

008

A04, A08, A02

Ill-defined intestinal infections

009

A09

IBS-related procedures

  

Sigmoidoscopy, colonoscopy, endoscopy

45.21, 45.22, 45.23, 45.24, 45.28, 48.23

2.NM.70, 2.OW.70

Small bowel series

87.63

3.NK.10