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2007 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Digestive System 520-579 > Diseases Of Esophagus, Stomach, And Duodenum 530-538 > Duodenal Ulcer 532.* > 2007 ICD-9-CM Diagnosis 532.91 Duodenal ulcer unspecified as acute or chronic without hemorrhage or 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 Therefore, this code may be out of date.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 532.91 can be accessed here. 532.91 is a specific code that can be used to specify a diagnosis 532.91 contains 1 index entry View the ICD-9-CM Volume 1 532.* hierarchy Index entries containing 532.91: Obstruction, obstructed, obstructive duodenum 537.3 due to ulcer 532.91