555.9 is a billable ICD-9-CM medical code that can be used to specify a diagnosis on a reimbursement claim.
Diagnosis Definition(s)
gastrointestinal disorder characterized by chronic inflammatory infiltrates, fibrosis affecting all layers of the serosa, and development of noncaseating granulomas; most common site of involvement is the terminal ileum with the colon as the second most common.
Chronic inflammation of the gastrointestinal tract, most commonly the bowel. Crohn's disease increases the risk for colon cancer.
A gastrointestinal disorder characterized by chronic inflammation involving all layers of the intestinal wall, noncaseating granulomas affecting the intestinal wall and regional lymph nodes, and transmural fibrosis. Crohn disease most commonly involves the terminal ileum; the colon is the second most common site of involvement. --2004
Inflammation of the intestines, but usually only of the small intestine. Regional enteritis increases the risk for developing colon cancer. Also called Crohn's disease.
Also applicable to/known as
Crohn's disease NOS
Regional enteritis NOS
ICD-9-CM Volume 2 Index Entries That Refer To 555.9
Crohn's disease (see also Enteritis, regional) 555.9
Disease, diseased - see also Syndrome
Crohn's (intestine) (see also Enteritis, regional) 555.9
2010 ICD-9-CM Diagnosis Code 555.9
555.9
