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

synonyms

demo
request yours today
subscribe
start today
newsletter
free subscription

Thank you for choosing Find-A-Code, please Sign In to remove ads.