Chapter XI
Diseases of the digestive system
(K00-K93)

Other diseases of the digestive system
(K90-K93)

K90 Intestinal malabsorption
Excludes: following gastrointestinal surgery ( K91.2 )
K90.0 Coeliac disease
Gluten-sensitive enteropathy
Idiopathic steatorrhoea
Nontropical sprue
K90.1 Tropical sprue
Sprue NOS
Tropical steatorrhoea
K90.2 Blind loop syndrome, not elsewhere classified
Blind loop syndrome NOS
Excludes: blind loop syndrome:
· congenital ( Q43.8 )
· postsurgical ( K91.2 )
K90.3 Pancreatic steatorrhoea
K90.4 Malabsorption due to intolerance, not elsewhere classified
Malabsorption due to intolerance to:
· carbohydrate
· fat
· protein
· starch
Excludes: gluten-sensitive enteropathy ( K90.0 )
lactose intolerance ( E73.- )
K90.8 Other intestinal malabsorption
Whipple's disease+ ( M14.8* )
K90.9 Intestinal malabsorption, unspecified

K91 Postprocedural disorders of digestive system, not elsewhere classified
Excludes: gastrojejunal ulcer ( K28.- )
radiation:
· colitis ( K52.0 )
· gastroenteritis ( K52.0 )
· proctitis ( K62.7 )
K91.0 Vomiting following gastrointestinal surgery
K91.1 Postgastric surgery syndromes
Syndrome:
· dumping
· postgastrectomy
· postvagotomy
K91.2 Postsurgical malabsorption, not elsewhere classified
Postsurgical blind loop syndrome
Excludes: malabsorption:
· osteomalacia in adults ( M83.2 )
· osteoporosis, postsurgical ( M81.3 )
K91.3 Postoperative intestinal obstruction
K91.4 Colostomy and enterostomy malfunction
K91.5 Postcholecystectomy syndrome
K91.8 Other postprocedural disorders of digestive system, not elsewhere classified
K91.9 Postprocedural disorder of digestive system, unspecified

K92 Other diseases of digestive system
Excludes: neonatal gastrointestinal haemorrhage ( P54.0-P54.3 )
K92.0 Haematemesis
K92.1 Melaena
Excludes: occult blood in faeces ( R19.5 )
K92.2 Gastrointestinal haemorrhage, unspecified
Haemorrhage:
· gastric NOS
· intestinal NOS
Excludes: acute haemorrhagic gastritis ( K29.0 )
haemorrhage of anus and rectum ( K62.5 )
with peptic ulcer ( K25-K28 )
K92.8 Other specified diseases of digestive system
K92.9 Disease of digestive system, unspecified

K93* Disorders of other digestive organs in diseases classified elsewhere
K93.0* Tuberculous disorders of intestines, peritoneum and mesenteric glands ( A18.3+ )
Excludes: tuberculous peritonitis ( K67.3* )
K93.1* Megacolon in Chagas' disease ( B57.3+ )
K93.8* Disorders of other specified digestive organs in diseases classified elsewhere