2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Digestive System 520-579 > Other Diseases Of Intestines And Peritoneum 560-569 > Functional Digestive Disorders Not Elsewhere Classified 564.* > 2006 ICD-9-CM Diagnosis 564.1 Irritable bowel syndrome View the most recent version of ICD-9-CM 564.1 A disorder with chronic or recurrent colonic symptoms without a clearcut etiology. This condition is characterized by chronic or recurrent ABDOMINAL PAIN, bloating, MUCUS in FECES, and an erratic disturbance of DEFECATION. 564.1 is a specific code that can be used to specify a diagnosis 564.1 contains 4 index entries View the ICD-9-CM Volume 1 564.* hierarchy Alternate Terminology Irritable colon Spastic colon  Index entries containing 564.1: Irritability (nervous) 799.2 bowel (syndrome) 564.1 colon 564.1 psychogenic 306.4 Spasm, spastic, spasticity (see also condition) 781.0 colon 564.1 psychogenic 306.4 Syndrome - see also Disease irritable bowel 564.1