DA42 Gastritis International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2026-01 Gastritis is an injury of gastric mucosa that involves epithelial damage, mucosal inflammation, and epithelial cell regeneration except for any epithelial defect. Gastritis is caused by various factors such as infectious agents, drugs, chemical agents, autoimmune reaction and others. Gastritis is diagnosed histopathologically and/or endoscopically. Gastritis is classified as acute and chronic phase by clinical course.
inclusions sections/codes in this section () postcoordination Add Stem and/or Extension codes to form a cluster code which adds detail to the condition.
Has causing condition - multiple selections are allowed [select] 4A44 Vasculitis 4A44.0 Rhizomelic pseudopolyarthritis 4A44.1 Aortic arch syndrome 4A44.2 Giant cell arteritis 4A44.3 Single organ vasculitis 4A44.4 Polyarteritis nodosa 4A44.5 Mucocutaneous lymph node syndrome 4A44.6 Sneddon syndrome 4A44.7 Primary angiitis of the central nervous system 4A44.8 Thromboangiitis obliterans 4A44.9 Immune complex small vessel vasculitis 4A44.A Antineutrophil cytoplasmic antibody-associated vasculitis 4A44.B Leukocytoclastic vasculitis 4A44.Y Other specified vasculitis 4A44.Z Vasculitis, unspecified 4A44.90 Cryoglobulinaemic vasculitis 4A44.91 Hypocomplementaemic urticarial vasculitis 4A44.92 IgA vasculitis 4A44.9Y Other specified immune complex small vessel vasculitis 4A44.9Z Immune complex small vessel vasculitis, unspecified 4A44.A0 Microscopic polyangiitis 4A44.A1 Granulomatosis with polyangiitis 4A44.A2 Eosinophilic granulomatosis with polyangiitis 4A44.AY Other specified antineutrophil cytoplasmic antibody-associated vasculitis 4A44.AZ Antineutrophil cytoplasmic antibody-associated vasculitis, unspecified 4A44.B0 Cutaneous leukocytoclastic vasculitis 4A44.BY Other specified leukocytoclastic vasculitis 4A44.BZ Leukocytoclastic vasculitis, unspecified 4B20 Sarcoidosis 4B20.0 Sarcoidosis of lung 4B20.1 Sarcoidosis of lymph nodes 4B20.2 Sarcoidosis of the digestive system 4B20.3 Neurosarcoidosis 4B20.4 Ocular sarcoidosis 4B20.5 Cutaneous sarcoidosis 4B20.Y Other specified sarcoidosis 4B20.Z Sarcoidosis, unspecified DD70 Crohn disease DD70.0 Crohn disease of upper gastrointestinal tract DD70.1 Crohn disease of small intestine DD70.2 Crohn disease of appendix DD70.3 Crohn disease of large intestine DD70.4 Crohn disease of anal region DD70.5 Crohn disease of both small and large intestine DD70.6 Crohn disease of anastomotic sites DD70.Y Crohn disease of other specified site DD70.Z Crohn disease, unspecified site Has manifestation - multiple selections are allowed [select] ME24 Clinical manifestations of the digestive system ME24.0 Digestive system abscess ME24.1 Digestive system fistula ME24.2 Digestive system obstruction ME24.3 Digestive system perforation ME24.4 Digestive system stenosis ME24.5 Digestive system ulcer ME24.6 Digestive system dilatation ME24.7 Digestive system incarceration ME24.8 Digestive system strangulation or gangrene ME24.9 Gastrointestinal bleeding ME24.A Other digestive system haemorrhage, not elsewhere classified ME24.Y Other specified clinical manifestations of the digestive system ME24.30 Perforation of small intestine ME24.31 Perforation of large intestine ME24.35 Perforation of gallbladder or bile ducts ME24.3Y Digestive system perforation of other specified site ME24.3Z Digestive system perforation of unspecified site ME24.90 Acute gastrointestinal bleeding, not elsewhere classified ME24.91 Chronic gastrointestinal bleeding, not elsewhere classified ME24.9Z Gastrointestinal bleeding, unspecified ME24.A0 Obscure gastrointestinal bleeding ME24.A1 Haemorrhage of anus or rectum ME24.A2 Oesophageal haemorrhage ME24.A3 Haematochezia ME24.A4 Melaena ME24.A5 Haematemesis ME24.A6 Positive occult blood in stool MG30.42 Chronic visceral pain from persistent inflammation Course - only one may be selected [select] XT5R Acute XT8W Chronic
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