IBD IconThrough the AGA Roadmap to the Future of GI Practice, AGA offers this IBD Clinical Service Line to support high-quality patient care.

Inflammatory bowel disease (IBD) is a term that refers to both 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.

Educate Yourself

Clinical Care Pathways

AGA IBD Clinical Care Pathways translate the latest evidence into user-friendly tools for the clinician. While recognizing the existence of alternative approaches to specific clinical scenarios, the care pathways offer practical recommendations where data gaps exist.

Crohn’s Disease

Ulcerative Colitis

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

Educate Your Patients

AGA provides several patient guides, books and other resources to help your patients understand their celiac disease diagnosis and the steps you will take along with them to manage their disease.

Understanding Inflammatory Bowel Disease

IBD Self-Management: The AGA Guide to Crohn's Disease and Ulcerative Colitis

What to Know About Biologic Therapy in IBD (video)

Preparing for an Upper GI Endoscopy: Online | Video

Preparing for a Capsule Endoscopy: Online | Video

Understanding Crohn's Disease (video)

Ulcerative Colitis — How Good Nutrition Can Help Educating Patients About Ulcerative Colitis Pocket Guide


AGA Roadmap to the Future of GI