2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Digestive System 520-579 > Diseases Of Esophagus, Stomach, And Duodenum 530-538 > Gastric Ulcer 531.* > 2008 ICD-9-CM Diagnosis 531.21 Acute gastric ulcer with hemorrhage and perforation with obstruction  On October 1, 2008 the 2009 ICD-9-CM codes came into effect. Therefore, this code may be out of date. The 2009 version of ICD-9-CM 531.21 can be accessed here. 531.21 is a specific code that can be used to specify a diagnosis View the ICD-9-CM Volume 1 531.* hierarchy ICD9Data's sister site ProcedureCodes.com launches with the 2008/09 CPT® codes - read more on the ICD9Data.com blog.