Gastritis Gastritis Classifications and external resources ICD - 10 K 29.0 -K29 . 7 ICD - 9 535.0 -535 . 5 Gastritis is inflammation of the gastric mucosa . The word comes from the Greek gastro- meaning of the stomach and -itis meaning inflammation . Depending on the cause , it may persist acutely or chronically . Causes Bacterial infection ( often by Helicobacter pylori ) Fungal infection ( typically in people with AIDS ) Parasitic infection ( often from poorly cooked seafood ) Viral infection Bile reflux NSAIDs Cigarette smoke Excessive alcohol consumption Certain types of radiation Symptoms Some of these symptoms may accompany gastritis : Upper abdominal pain or discomfort Appetite loss Belching Nausea Vomiting Fatigue Diagnosis A doctor may order a barium meal test and if the results determine the presence of gastritis , a gastroscopic biopsy check may follow . For Helicobacter pylori infection ( the most common cause ) , one can test using blood antibody or stool antigen tests , or with a urea breath test . Treatment Treatment consists of removing the irritant or the infection . In the case of Helicobacter pylori infection , a doctor may prescribe antibiotics . See also Stomach Helicobacter pylori Gastroenteritis External links http : //www.merck.com/mmhe/sec09/ch121/ch121b.html http : //www.emedicine.com/emerg/topic820.htm http : //www.emedicine.com/med/topic852.htm http : //www.intelihealth.com/IH/ihtIH/WSIHW000/9339/10796.html  This disease article is a stub . You can help Wikipedia by expanding it . Categories : Disease stubs | Inflammations In other languages : Bân-lâm-gú | Български | Deutsch | Español | 한국어 | Italiano | Lietuvių | Македонски | Nederlands | Norsk ( nynorsk ) | Português | Русский | Svenska | 中文 Gastritis K 29.0 -K29.7 535.0 -535 . 5 