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3A01.4 Vitamin B12 deficiency anaemia due to intestinal disease International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01 A number of intestinal disorders can also cause vitamin B12 (cobalamin) deficiency. These include severe pancreatic diseases and small bowel diseases such as malabsorption, ileal disease (including tuberculous ileitis, lymphoma, amyloid, long-term survivors of pelvic irradiation), extensive small bowel resection or bypass, gastric surgery/reconstruction for obesity (bariatric surgery) and Crohn's disease. When jejunal blind loops are present, bacterial overgrowth within the loops competes for cobalamin, leading to cobalamin deficiency. Although not as common currently, infestation with the fish tapeworm, Diphyllobothrium latum, was once a classic cause of cobalamin deficiency.
postcoordination Add Stem and/or Extension codes to form a cluster code which adds detail to the condition.
Has causing condition - a selection is required - multiple selections are allowed [select] DA90 Nonstructural developmental anomalies of small intestine – DA90.0 Syndromic diarrhoea – DA90.1 Congenital intestinal transport defect – DA90.2 Congenital intestinal motility disorders – DA90.Y Other specified nonstructural developmental anomalies of small intestine – DA90.Z Nonstructural developmental anomalies of small intestine, unspecified DA91 Obstruction of small intestine – DA91.0 Intussusception of small intestine – DA91.1 Volvulus of small intestine – DA91.2 Intestinal adhesions or bands of small intestine with obstruction – DA91.3 Obstructive ileus of small intestine due to impaction – DA91.Y Other specified obstruction of small intestine – DA91.Z Obstruction of small intestine, unspecified –– DA91.30 Gallstone ileus of small intestine –– DA91.31 Enterolith of small intestine –– DA91.3Y Other specified obstructive ileus of small intestine due to impaction –– DA91.3Z Obstructive ileus of small intestine due to impaction, unspecified DA92 Other acquired anatomical alterations of small intestine – DA92.0 Fistula of small intestine – DA92.1 Pneumatosis intestinalis of small intestine – DA92.Y Other specified other acquired anatomical alterations of small intestine – DA92.Z Other acquired anatomical alterations of small intestine, unspecified DA93 Motility disorders of small intestine – DA93.0 Paralytic ileus – DA93.Y Other specified motility disorders of small intestine – DA93.Z Motility disorders of small intestine, unspecified DA94 Noninfectious enteritis or ulcer of small intestine – DA94.0 Primary ulcer of small intestine – DA94.1 Drug-induced or toxic enteritis of small intestine – DA94.2 Allergic or dietetic enteritis of small intestine – DA94.3 Enteritis or ulcer of small intestine due to other external causes – DA94.Y Other specified noninfectious enteritis or ulcer of small intestine – DA94.Z Noninfectious enteritis or ulcer of small intestine, unspecified –– DA94.00 Primary nonspecific ulceration of small intestine –– DA94.01 Chronic non-specific multiple ulcers of small intestine –– DA94.02 Cryptogenic multifocal ulcerous stenosing enteritis –– DA94.0Y Other specified primary ulcer of small intestine –– DA94.0Z Primary ulcer of small intestine, unspecified –– DA94.20 IgE mediated allergic enteritis of small intestine –– DA94.21 Eosinophilic enteritis –– DA94.22 Food protein-induced enterocolitis syndrome –– DA94.2Y Other specified allergic or dietetic enteritis of small intestine –– DA94.2Z Allergic or dietetic enteritis of small intestine, unspecified –– DA94.30 Enteritis or ulcer of small intestine due to foreign body –– DA94.31 Enteritis or ulcer of small intestine due to radiation –– DA94.32 Enteritis or ulcer of small intestine due to trauma –– DA94.3Z Enteritis or ulcer of small intestine due to other external causes, unspecified DA95 Coeliac disease DA96 Intestinal malabsorption or protein-losing enteropathy – DA96.0 Intestinal malabsorption – DA96.1 Protein-losing enteropathy – DA96.Y Other specified intestinal malabsorption or protein-losing enteropathy – DA96.Z Intestinal malabsorption or protein-losing enteropathy, unspecified –– DA96.00 Bacterial overgrowth syndrome –– DA96.01 Tropical sprue –– DA96.02 Malabsorption or intolerance of specific nutrients –– DA96.04 Short bowel syndrome –– DA96.05 Intestinal failure –– DA96.0Y Other specified intestinal malabsorption –– DA96.0Z Intestinal malabsorption, unspecified DA97 Certain vascular disorders of small intestine – DA97.0 Angiodysplasia of small intestine – DA97.1 Arteriovenous malformation of small intestine – DA97.2 Vasculitis of mesenteric arteries – DA97.3 Varices of small intestine – DA97.Z Certain vascular disorders of small intestine, unspecified DA98 Polyps of small intestine – DA98.0 Hamartoma of small intestine – DA98.1 Hyperplastic polyp of small intestine – DA98.2 Inflammatory fibroid polyp of small intestine – DA98.3 Lymphoid hyperplasia of small intestine – DA98.Y Other specified polyps of small intestine – DA98.Z Polyps of small intestine, unspecified DA9Y Other specified diseases of small intestine DA9Z Diseases of small intestine, unspecified DB30 Obstruction of large intestine – DB30.0 Intussusception of the large intestine – DB30.1 Volvulus of large intestine – DB30.2 Adhesions of large intestine with obstruction – DB30.3 Impaction of large intestine – DB30.4 Stenosis of the rectum – DB30.Y Other specified obstruction of large intestine – DB30.Z Obstruction of large intestine, unspecified DB31 Other acquired anatomical alterations of large intestine – DB31.0 Fistula of large intestine – DB31.1 Pneumatosis intestinalis of large intestine – DB31.2 Rectal prolapse – DB31.Y Other specified other acquired anatomical alterations of large intestine – DB31.Z Other acquired anatomical alterations of large intestine, unspecified DB32 Motility disorders of large intestine – DB32.0 Pseudo-obstruction of colon – DB32.1 Slow transit constipation – DB32.2 Megacolon – DB32.3 Acquired hypoganglionosis of large intestine – DB32.Y Other specified motility disorders of large intestine – DB32.Z Motility disorders of large intestine, unspecified –– DB32.20 Toxic megacolon –– DB32.2Y Other specified megacolon –– DB32.2Z Megacolon, unspecified DB33 Certain noninfectious colitis or proctitis – DB33.0 Primary ulcer of colon – DB33.1 Microscopic colitis – DB33.2 Allergic or dietetic colitis – DB33.3 Diversion colitis – DB33.4 Colitis or proctitis due to external causes – DB33.Y Other specified noninfectious colitis or proctitis – DB33.Z Certain noninfectious colitis or proctitis, unspecified –– DB33.10 Collagenous colitis –– DB33.11 Lymphocytic colitis –– DB33.1Y Other specified microscopic colitis –– DB33.1Z Microscopic colitis, unspecified –– DB33.20 Food protein-induced proctitis or colitis of infants –– DB33.2Y Other specified allergic or dietetic colitis –– DB33.2Z Allergic or dietetic colitis, unspecified –– DB33.40 Chemical colitis or proctitis –– DB33.41 Radiation-induced colitis –– DB33.42 Radiation proctitis –– DB33.43 Drug-induced colitis –– DB33.4Y Other specified colitis or proctitis due to external causes –– DB33.4Z Colitis or proctitis due to external causes, unspecified DB34 Certain vascular disorders of large intestine – DB34.0 Angiodysplasia of colon – DB34.1 Arteriovenous malformation of large intestine – DB34.2 Vasculitis of large intestine – DB34.3 Varices of large intestine – DB34.4 Acute haemorrhagic rectal ulcer – DB34.Y Other specified vascular disorders of large intestine – DB34.Z Vascular disorders of large intestine, unspecified DB35 Polyp of large intestine – DB35.0 Hyperplastic polyp of large intestine – DB35.1 Inflammatory polyp of large intestine – DB35.2 Benign lymphoid polyp of large intestine – DB35.3 Hamartomatous polyp – DB35.4 Inflammatory fibroid polyp of large intestine – DB35.Y Other specified polyp of large intestine – DB35.Z Polyp of large intestine, unspecified DB36 Certain infections of the large intestine – DB36.0 Colonic abscess – DB36.1 Rectal abscess – DB36.Y Other specified infections of the large intestine – DB36.Z Certain infections of the large intestine, unspecified –– DB36.10 Perirectal abscess –– DB36.11 Ischiorectal abscess –– DB36.12 Rectal cellulitis DB3Y Other specified diseases of large intestine DB3Z Diseases of large intestine, unspecified
synonyms Vitamin B12 deficiency anaemia due to intestinal disease Acquired megaloblastic anaemia due to vitamin B12 deficiency secondary to intestinal disease
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