List of ICD-9 codes 520-579: diseases of the digestive system

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1 9. Diseases of the digestive system (520-579)
2 See also

9. Diseases of the digestive system (520-579)

diseases of oral cavity, salivary glands, and jaws (520-529)

(520) Disorders of tooth development and eruption
- (520.0) Anodontia
- (520.1) Supernumerary teeth
- (520.2) Abnormalities of size and form of teeth
- (520.3) Mottled teeth
- (520.4) Disturbances of tooth formation
- (520.5) Hereditary disturbances in tooth structure not elsewhere classified
- (520.6) Disturbances in tooth eruption
- (520.7) Teething syndrome

(521) Diseases of hard tissues of teeth

(522) Diseases of pulp and periapical tissues

(523) Gingival and periodontal diseases
- (523.1) Gingivitis, chronic

(524) Dentofacial anomalies, including malocclusion

(525) Other diseases and conditions of the teeth and supporting structures

(526) Diseases of the jaws

(527) Diseases of the salivary glands

(528) Diseases of the oral soft tissues, excluding lesions specific for gingiva and tongue
- (528.0) Stomatitis
- (528.1) Cancrum oris
- (528.2) Oral aphthae
- (528.3) Cellulitis and abscess of oral soft tissues
- (528.4) Cysts of oral soft tissues
- (528.5) Diseases of lips
- (528.6) Leukoplakia of oral mucosa including tongue
- (528.7) Aphthous ulcer
- (528.6) Leukoplakia, oral mucosa
- (528.7) Erythroplakia

(529) Diseases and other conditions of the tongue
- (529.0) Glossitis

diseases of esophagus, stomach, and duodenum (530-537)

(530) Diseases of esophagus
- (530.0) Achalasia/cardiospasm
- (530.1) Esophagitis, unspec.
- (530.3) Esophageal stricture/stenosis
- (530.8) Other specified disorders of esophagus
  - (530.81) Gastroesophageal reflux, no esophagitis
  - (530.85) Barrett's esophagitis
(531) Gastric ulcer
(532) Duodenal ulcer
(533) Peptic ulcer, site unspecified
(534) Gastrojejunal ulcer
(535) Gastritis and duodenitis
- (535.0) Acute gastritis
- (535.6) Duodenitis
(536) Disorders of function of stomach
- (536.3) Gastroparesis
- (536.8) Dyspepsia
(537) Other disorders of stomach and duodenum

appendicitis (540-543)

(540) Acute appendicitis
- (540.0) Appendicitis, acute w/ gen. peritonitis
- (540.9) Appendicitis, acute w/o peritonitis
(541) Appendicitis, unqualified
(542) Other appendicitis
(543) Other diseases of appendix

hernia of abdominal cavity (550-553)

(550) Inguinal hernia
- (550.9) Hernia, inguinal, NOS, unilateral
(551) Other hernia of abdominal cavity, with gangrene
(552) Other hernia of abdominal cavity with obstruction, without mention
(553) Other hernia of abdominal cavity without mention of obstruction

noninfectious enteritis and colitis (555-558)

(555) Regional enteritis
- (555.0) Crohn's, small intestine
- (555.1) Crohn's, large intestine
- (555.9) Crohn's disease, NOS
(556) Idiopathic proctocolitis
- (556.9) Ulcerative colitis, unspec.
(557) Vascular insufficiency of intestine
- (557.0) Vascular insufficiency, acute, intestine
- (557.9) Ischemic bowel disease, unspec.
(558) Other noninfectious gastroenteritis and colitis
- (558.9) Gastroenteritis, noninfectious, unspec.

other diseases of intestines and peritoneum (560-569)

(560) Intestinal obstruction without mention of hernia
- (560.1) Ileus
- (560.3) Impaction of intestine
- (560.9) Intestinal obstruction, unspec.

(562) Diverticula of intestine
- (562.1) Diverticulosis of colon
  - (562.11) Diverticulitis of colon, NOS
  - (562.12) Diverticulosis, colon w/ hemorrhage

(564) Functional digestive disorders, not elsewhere classified
- (564.0) Constipation, unspec.
- (564.1) Irritable bowel syndrome
- (564.2) Post-gastric-surgery syndromes
- (564.4) Postoperative functional disorders
- (564.6) Anal spasm

(565) Anal fissure and fistula
- (565.0) Anal fissure, nontraumatic

(566) Abscess of anal and rectal regions
- (566.0) Abscess, perianal

(567) Peritonitis

(568) Other disorders of peritoneum
- (568.0) Peritoneal adhesions
- (568.8) Other specified disorders of peritoneum
  - Pneumoperitoneum

(569) Other disorders of intestine
- (569.3) Bleeding, rectal

other diseases of digestive system (570-579)

liver

(570) Acute and subacute necrosis of liver
- (570.0) Hepatic failure, acute

(571) Chronic liver disease and cirrhosis
- (571.0) Fatty liver, alcoholic
- (571.2) Cirrhosis, liver, alcoholic
- (571.4) Hepatitis, chronic, unspec.
- (571.5) Cirrhosis, NOS
- (571.6) Primary biliary cirrhosis
- (571.9) Liver disease, chronic, unspec.

(572) Liver abscess and sequelae of chronic liver disease
- (572.2) Coma, hepatic
- (572.4) Hepatorenal syndrome

(573) Other disorders of liver
- (573.3) Hepatitis, toxic

gallbladder

(574) Cholelithiasis
- (574.3) Choledocholithiasis

(575) Other disorders of gallbladder
- (575.0) Cholecystitis, acute
- (575.9) Gallbladder disease, unspec.

other biliary tract

(576) Other disorders of biliary tract

other

(577) Diseases of pancreas
- (577.0) Pancreatitis, acute
- (577.1) Pancreatitis, chronic
- (577.2) Pancreatic cyst, pseudocyst

(578) Gastrointestinal hemorrhage
- (578.0) Hematemesis
- (578.1) Blood in stool, melena

(579) Intestinal malabsorption
- (579.0) Coeliac disease
- (579.1) Tropical sprue
- (579.2) Blind loop syndrome
- (579.3) Other and unspecified postsurgical nonabsorption
  - Short bowel syndrome
- (579.4) Pancreatic steatorrhea
- (579.8) Other specified intestinal malabsorption
  - Protein losing enteropathy
- (579.9) Unspecified intestinal malabsorption

See also

List of ICD-9 codes

Pathology: Medical conditions and ICD code

(Disease / Disorder / Illness, Syndrome / Sequence, Symptom / Sign, Injury, etc.)

Infectious disease/Infection: Bacterial disease (G+, G-) · Virus disease · Parasitic disease (Protozoan infection, Helminthiasis, Ectoparasitic infestation) · Mycosis · Zoonosis

(C/D,
140-239 & 280-289)

Cancer (C00-D48, 140-239)	Tumor
Myeloid hematologic (D50-D77, 280-289)	Anemia · Coagulopathy
Lymphoid immune (D80-D89, 279)	Immunodeficiency · Immunoproliferative disorder · Hypersensitivity

Endocrine disease · Nutrition disorder · Inborn error of metabolism

Mental disorder

Nervous system disease (CNS, PNS) · Neuromuscular disease

Eye disease · Ear disease

Cardiovascular disease (Heart disease, Vascular disease)

Respiratory disease (Obstructive lung disease, Restrictive lung disease, Pneumonia)

Stomatognathic disease (Tooth disease) · Digestive disease (Esophageal, Stomach, Enteropathy, Liver, Pancreatic)

Skin disease · skin appendages (Nail disease, Hair disease, Sweat gland disease)

Musculoskeletal disorders: Myopathy · Arthropathy · Osteochondropathy (Osteopathy, Chondropathy)

Urologic disease (Nephropathy, Urinary bladder disease) · Male genital disease · Breast disease · Female genital disease

Complications of pregnancy · Obstetric labor complication · Puerperal disorder

Congenital disorder (Congenital abnormality)

Syndromes · Medical signs (Eponymous)

Bone fracture · Joint dislocation · Sprain · Strain · Subluxation · Head injury · Chest trauma · Poisoning

Developmental tooth disease/tooth abnormality (K00-K01, 520)

Quantity

Anodontia/Hypodontia · Hyperdontia

Abnormalities of
size and form

Concrescence · Fusion · Gemination · Dens evaginatus/Talon cusp · Dens invaginatus · Enamel pearl · Macrodontia · Microdontia · Taurodontism · Supernumerary roots

Disturbances in
formation

Dilaceration · Regional odontodysplasia · Turner's hypoplasia · Enamel hypoplasia · Ectopic enamel

Other hereditary disturbances
in structure

Amelogenesis imperfecta · Dentinogenesis imperfecta · Dentin dysplasia · Regional odontodysplasia

Other

Dental fluorosis · Tooth impaction

noco/cong/jaws/tumr, epon, injr

dent, proc (orth, pros, endo)

Acquired tooth disease (K02-K05, 521-525)

Hard tissues

Caries (tooth decay) · Attrition · Abrasion · Erosion · Hypercementosis · tooth resorption (External resorption, Internal resorption, Root resorption)

Pulp/periapical (Endodontal)

Pulpitis · Radicular cyst · Periapical abscess

Gingiva/periodontal
(Periodontal)

Dentigerous cyst · Calcifying odontogenic cyst · Glandular odontogenic cyst

Other

Toothache · Cracked tooth syndrome

noco/cong/jaws/tumr, epon, injr

dent, proc (orth, pros, endo)

Dentofacial anomalies and jaw disease (K07-K10, 524-526)

Dentofacial anomalies/ jaw abnormality/ malocclusion/ orthodontic	Gnathitis jaw size: Micrognathism · Maxillary hypoplasia jaw-cranial base relationship: Prognathism · Retrognathism dental arch relationship: Crossbite · Overbite Temporomandibular joint disorder
Maxillomandibular anomalies	Cherubism · Congenital epulis · Keratocystic odontogenic tumour · Torus mandibularis · Torus palatinus

noco/cong/jaws/tumr, epon, injr

dent, proc (orth, pros, endo)

Oral pathology: Stomatognathic disease (K06,K11-K14, 523,527-529)

Vestibule of mouth

Lip	Cheilitis (Angular, Actinic) · Herpes labialis · Plasma cell cheilitis · Cheilitis granulomatosa · Chapped lips Cheilitis exfoliativa · Cheilitis glandularis · Allergic contact cheilitis Drug-induced ulcer of the lip · Epidermization of the lip
Cheek	Morsicatio buccarum

Oral cavity proper

Hard, soft, and periapical tissues	gingival disease: Gingivitis (Desquamative gingivitis), Pericoronitis, Necrotizing ulcerative gingivitis, Noma, Epulis · Acute necrotizing ulcerative gingivitis Periodontitis · Ulcer

Salivary glands

Sialadenitis (Parotitis) · Benign lymphoepithelial lesion · Necrotizing sialometaplasia · Ranula · Sialolithiasis · Mucocele of salivary gland
saliva: Drooling/sialorrhea · Xerostomia

Glossitis (Geographic tongue) · Fissured tongue · Glossodynia · Black hairy tongue · Strawberry tongue · Caviar tongue · Median rhomboid glossitis · Osseous choristoma of the tongue · Smooth tongue

General

Stomatitis: Aphthous ulcer (Major aphthous ulcer) · Herpetic stomatitis

Velopharyngeal inadequacy

oral mucosa: Erythroplakia · Leukoplakia (Hairy leukoplakia) · White sponge nevus

To be grouped

Acquired dyskeratotic leukoplakia · Angina bullosa haemorrhagica · Behçet syndrome · Cutaneous sinus of dental origin · Cyclic neutropenia · Epulis fissuratum · Eruptive lingual papillitis · Melanocytic oral lesion · Melkersson–Rosenthal syndrome · Mucosal lichen planus · Oral Crohn's disease · Oral florid papillomatosis · Oral melanosis · Plasmoacanthoma · Proliferative verrucous leukoplakia · Pyogenic granuloma · Pyostomatitis vegetans · Recurrent intraoral herpes simplex infection · Stomatitis nicotina · Trumpeter's wart · Vestibular papillomatosis

noco/cofa(c)/cogi/tumr, sysi

proc (peri), drug (A1)

Digestive system · Digestive disease · Gastroenterology (primarily K20–K93, 530–579)

Esophagus	Esophagitis (Candidal, Herpetiform) · rupture (Boerhaave syndrome, Mallory-Weiss syndrome) · UES (Zenker's diverticulum) · LES (Barrett's esophagus) · Esophageal motility disorder (Nutcracker esophagus, Achalasia, Diffuse esophageal spasm, Gastroesophageal reflux disease (GERD)) · Laryngopharyngeal reflux (LPR) · Esophageal stricture · Megaesophagus
Stomach	Gastritis (Atrophic, Ménétrier's disease, Gastroenteritis) · Peptic (gastric) ulcer (Cushing ulcer, Dieulafoy's lesion) · Dyspepsia · Pyloric stenosis · Achlorhydria · Gastroparesis · Gastroptosis · Portal hypertensive gastropathy · Gastric antral vascular ectasia · Gastric dumping syndrome · Gastric volvulus

Lower GI tract:
Intestinal/
enteropathy

Small intestine/ (duodenum/jejunum/ileum)	Enteritis (Duodenitis, Jejunitis, Ileitis) — Peptic (duodenal) ulcer (Curling's ulcer) — Malabsorption: Coeliac · Tropical sprue · Blind loop syndrome · Whipple's · Short bowel syndrome · Steatorrhea · Milroy disease
Large intestine (appendix/colon)	Appendicitis · Colitis (Pseudomembranous, Ulcerative, Ischemic, Microscopic, Collagenous, Lymphocytic) · Functional colonic disease (IBS, Intestinal pseudoobstruction/Ogilvie syndrome) — Megacolon/Toxic megacolon · Diverticulitis/Diverticulosis
Large and/or small	Enterocolitis (Necrotizing) · IBD (Crohn's disease) — vascular: Abdominal angina · Mesenteric ischemia · Angiodysplasia — Bowel obstruction: Ileus · Intussusception · Volvulus · Fecal impaction — Constipation · Diarrhea (Infectious) · Intestinal adhesions
Rectum	Proctitis (Radiation proctitis) · Proctalgia fugax · Rectal prolapse · Anismus
Anal canal	Anal fissure/Anal fistula · Anal abscess · Anal dysplasia · Pruritus ani

GI bleeding/BIS

Upper (Hematemesis, Melena) · Lower (Hematochezia)

Liver	Hepatitis (Viral hepatitis, Autoimmune hepatitis, Alcoholic hepatitis) · Cirrhosis (PBC) · Fatty liver (NASH) · vascular (Hepatic veno-occlusive disease, Portal hypertension, Nutmeg liver) · Alcoholic liver disease · Liver failure (Hepatic encephalopathy, Acute liver failure) · Liver abscess (Pyogenic, Amoebic) · Hepatorenal syndrome · Peliosis hepatis
Gallbladder	Cholecystitis · Gallstones/Cholecystolithiasis · Cholesterolosis · Rokitansky-Aschoff sinuses · Postcholecystectomy syndrome · Porcelain gallbladder
Bile duct/ other biliary tree	Cholangitis (PSC, Secondary sclerosing cholangitis, Ascending) · Cholestasis/Mirizzi's syndrome · Biliary fistula · Haemobilia · Gallstones/Cholelithiasis common bile duct (Choledocholithiasis, Biliary dyskinesia) · Sphincter of Oddi dysfunction
Pancreatic	Pancreatitis (Acute, Chronic, Hereditary, Pancreatic abscess) · Pancreatic pseudocyst · Exocrine pancreatic insufficiency · Pancreatic fistula

Hernia	Diaphragmatic (Congenital) · Hiatus Inguinal (Indirect, Direct) · Umbilical · Femoral · Obturator · Spigelian lumbar (Petit's, Grynfeltt-Lesshaft) undefined location (Incisional · Internal hernia)
Peritoneal	Peritonitis (Spontaneous bacterial peritonitis) · Hemoperitoneum · Pneumoperitoneum

anat(t, g, p)/phys/devp/cell

noco/cong/tumr, sysi/epon

proc, drug(A2A/2B/3/4/5/6/7/14/16)

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