IBD Icon

The two most common inflammatory bowel diseases (IBD) are ulcerative colitis and Crohn's disease. Ulcerative colitis causes inflammation of the lining of the large intestine. Crohn's disease causes inflammation of the lining and wall of the large and/or small intestine.

Through the IBD Clinical Service Line, AGA offers tools to help you become more efficient, understand quality standards and improve the process of care for patients.  



educate your patients


Patient Guidelines

Educate Yourself


Practice Resources

Manage Your Practice

Manage your practice with useful resources and practice improvement tools including CPT, HCPCS, ICD-9 and ICD-10 codes that are commonly used for GI procedures.


Crohn's Disease ICD-9 Codes (PDF)

Ulcerative Colitis ICD-9 Codes (PDF)

ICD-10 Resource Center