Chapter XI

Diseases of the digestive system
(K00-K93)

Noninfective enteritis and colitis
(K50-K52)

Includes: noninfective inflammatory bowel disease
Excludes: irritable bowel syndrome ( K58.- )
megacolon ( K59.3 )

K50 Crohn's disease [regional enteritis]
Includes: granulomatous enteritis
Excludes: ulcerative colitis ( K51.- )
K50.0 Crohn's disease of small intestine
Crohn's disease [regional enteritis] of:
· duodenum
· ileum
· jejunum
Ileitis:
· regional
· terminal
Excludes: with Crohn's disease of large intestine ( K50.8 )
K50.1 Crohn's disease of large intestine
Colitis:
· granulomatous
· regional
Crohn's disease [regional enteritis] of:
· colon
· large bowel
· rectum
Excludes: with Crohn's disease of small intestine ( K50.8 )
K50.8 Other Crohn's disease



#
Crohn's disease of both small and large intestine
Crohn is disease of :
· both small and large intestine
· mouth (oral manifestations)
K50.9 Crohn's disease, unspecified
Regional enteritis NOS

K51 Ulcerative colitis
K51.0 Ulcerative (chronic) enterocolitis
K51.1 Ulcerative (chronic) ileocolitis
K51.2 Ulcerative (chronic) proctitis
K51.3 Ulcerative (chronic) rectosigmoiditis
K51.4 Pseudopolyposis of colon
K51.5 Mucosal proctocolitis
K51.8 Other ulcerative colitis
K51.9 Ulcerative colitis, unspecified
Ulcerative enteritis NOS

K52 Other noninfective gastroenteritis and colitis
K52.0 Gastroenteritis and colitis due to radiation
K52.1 Toxic gastroenteritis and colitis
Use additional external cause code (Chapter XX), if desired, to identify toxic agent.
K52.2 Allergic and dietetic gastroenteritis and colitis
Food hypersensitivity gastroenteritis or colitis
#K52.20 Allergic and dietetic gastroenteritis and colitis due to cow_s milk protein
#K52.28 Other allergic and dietetic gastroenteritis and colitis
#K52.29 Allergic and dietetic gastroenteritis and colitis, unspecified
Food hypersensitivity gastroenteritis, unspecified
#K52.3 Persistent diarrhoea of infancy
Chronic diarrhoea of infancy NOS
K52.8 Other specified noninfective gastroenteritis and colitis
Eosinophilic gastritis or gastroenteritis
K52.9 Noninfective gastroenteritis and colitis, unspecified
Diarrhoea
Enteritis
Ileitis
Jejunitis
Sigmoiditis
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specified as noninfective, or NOS in countries where the conditions can be presumed to be of noninfectious origin
Excludes: colitis, diarrhoea, enteritis, gastroenteritis:
· infectious ( A09)
· unspecified, in countries where the condition can be presumed to be of infectious origin ( A09)
functional diarrhoea ( K59.1)
neonatal diarrhoea (noninfective) ( P78.3)
psychogenic diarrhoea ( F45.3)