The AGA Institute utilizes the GRADE system (Grades of Recommendation Assessment, Development and Evaluation) to create evidence-based clinical recommendations. Click here to read the process by which AGA Institute clinical practice guidelines are developed.

Existing AGA guidelines are regularly reviewed by members to assess whether they are in need of updating. Read about the AGA Institute’s guideline update process here.

The AGA Institute may also endorse other societies’ guidelines that meet the rigorous criteria for evidence-based clinical recommendations set forth by the Institute of Medicine. Click here to read about the AGA Institute’s criteria and methods for endorsing guidelines.

Available Guidelines

Colorectal Cancer

Colonoscopy Surveillance After Cancer Resection
Clinical Decision Support Tool

Colonoscopy Surveillance After Screening and Polypectomy
Clinical Decision Support Tool

Colorectal Cancer Screening and Surveillance for Early Detection
Clinical Decision Support Tool

CT Colonography Standards

Guidelines on Genetic Evaluation and Management of Lynch Syndrome: A Consensus Statement by the US Multi-Society Task Force on Colorectal Cancer

Optimizing Adequacy of Bowel Cleansing for Colonoscopy: Recommendations From the US Multi-Society Task Force on Colorectal Cancer

Endoscopic Procedures

Capnography for Moderate Sedation

Endoscopic Sedation

Inflammatory Bowel Disease (IBD)

Colorectal Neoplasia in Inflammatory Bowel Disease, Diagnosis and Management
Technical Review

Inflammatory Crohn’s Disease: Thiopurines, Methotrexate and Anti-TNF-α Biologic Drugs for Induction and Maintenance of Remission
Technical Review | Clinical Decision Support Tool

Guidelines for the Identification, Assessment and Initial Medical Treatment in Crohn’s Disease
Clinical Decision Support Tool

Irritable Bowel Syndrome (IBS) and Defecation Disorders

Technical Review | Clinical Decision Support Tool

Pharmacological Management of IBS
Technical Review

Liver Disease

Hepatitis B Reactivation During Immunosuppressive Drug Therapy
Technical Review | Clinical Decision Support Tool

Hepatitis C Screening and Evaluation
Clinical Decision Support Tool

Nonalcoholic Fatty Liver Disease

Pancreatic Disease

Acute Pancreatitis
Technical Review

Upper-Gastrointestinal Disorders

Barrett's Esophagus
Technical Review

Gastroesophageal Reflux Disease (GERD)
Technical Review

Upcoming Guidelines

Topic Expected Publication Date
Diagnosis and Management of Asymptomatic Neoplastic Pancreatic Cysts April 2015
Role of Upper-GI Biopsy to Evaluate Dyspepsia in the Absence of Mucosal Lesions Summer/Fall 2015
Management of Patients with Suspected Hereditary Colorectal Cancer Summer/Fall 2015
Management of Acute Diverticulitis Fall 2015
Medical Management of Microscopic Colitis Fall 2015
Management of Acute Liver Disease Spring 2016
Post-Bariatric Surgery Evaluation and Management Spring 2016

Clinical practice guidelines are developed under the aegis of the AGA Institute Clinical Guideline Committee and provide preferred approaches to specific medical problems or issues.

These documents are not to be construed as standards of care. All decisions regarding the care of a patient should be made by the physician in consideration of all aspects of the patient's specific medical circumstances.

A comprehensive background paper, the technical review, provides the user of the clinical practice guideline with the evidence used to formulate a particular recommendation and the strength and character of that evidence.


Gastroenterology and Clinical Gastroenterology and Hepatology (CGH) are members of the Medscape Publishers' Circle®, an alliance of leading medical publishers whose content is featured on Medscape. Medscape is part of the WebMD Medscape Health Network, a leading online health-care resource for professionals and consumers.

Selected Gastroenterology and Clinical Gastroenterology and Hepatology articles are available.