2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Digestive System 520-579 > Diseases Of Esophagus, Stomach, And Duodenum 530-537 > Gastritis And Duodenitis 535.* > 2006 ICD-9-CM Diagnosis 535.1 Atrophic gastritis View the most recent version of ICD-9-CM 535.1 (GAS-trik AT-ro-fee) A condition in which the stomach muscles shrink and become weak. The digestive (peptic) glands may also shrink, resulting in a lack of digestive juices. GASTRITIS with atrophy of the GASTRIC MUCOSA, the GASTRIC PARIETAL CELLS, and the mucosal glands leading to ACHLORHYDRIA. Atrophic gastritis usually progresses from chronic gastritis. 535.1 is a non-specific code that cannot be used to specify a diagnosis 535.1 contains 6 index entries View the ICD-9-CM Volume 1 535.* hierarchy Alternate Terminology Gastritis: atrophic-hyperplastic chronic (atrophic)  Index entries containing 535.1: Atrophy, atrophic gastritis (chronic) 535.1 Gastritis 535.5 atrophic 535.1 atrophic-hyperplastic 535.1 chronic (atrophic) 535.1 follicular 535.4 chronic 535.1 glandular 535.4 chronic 535.1