Practise Certified Gastroenterology Coder (CGIC) with a short sample and answer explanations. These are independent learning materials, not official exam questions or a pass prediction.
Exam outline and official sources
AAPC · AAPC official CGIC exam-content outline, published May 23, 2024 and accessed October 11, 2026; supplemented by the issuer's 2026 CGIC study-guide introduction. No separately numbered blueprint, examination effective date, or domain weights were stated. The workbook label matches the verified credential.
This original 20-question sample covers selected topics across the outline. It does not reproduce official exam questions or cover every tested topic.
- AAPC Help Center: Certified Gastroenterology Coder (CGIC) certification
- AAPC 2026 Specialty Study Guide: CGIC — sample pages
- ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027
- CMS: ICD-10
- CMS: Medicare NCCI Policy Manual
- Medicare NCCI Policy Manual 2026, Chapter I: General Correct Coding Policies
- Medicare NCCI Policy Manual 2026, Chapter VI: Surgery, Digestive System
- Medicare NCCI Policy Manual 2026, Chapter XII: Supplemental Services, HCPCS Level II
- CMS: Proper Use of Modifiers 59, XE, XP, XS & XU, April 2026
- AMA: CPT code 99214, updated January 26, 2026
- AMA: CPT Evaluation and Management, updated January 26, 2026
- AMA: 2023 CPT E/M Descriptors and Guidelines
- CMS: Evaluation and Management Services, May 2026
- CMS: Incident To Services & Supplies
- CMS: Advance Beneficiary Notice of Non-coverage Tutorial
- CMS: Guidelines for Teaching Physicians, Interns & Residents, August 2026
- HHS: Minimum Necessary Requirement
- NIDDK: Your Digestive System & How It Works
- NIDDK: Endoscopic Retrograde Cholangiopancreatography
- CMS Transmittal 13921: Colorectal Cancer Screening, August 27, 2026
- CMS: Health Care Code Sets, September 2026
Certified Gastroenterology Coder (CGIC)
Start with 20 free questions, then review the explanations and any topics you missed.
An outpatient gastroenterology note documents persistent diarrhea and 'possible Crohn disease; further testing planned.' No definitive cause has been established. Which diagnosis should be reported for this encounter?
Certified Gastroenterology Coder (CGIC)
Flashcards
ICD-10-CM diagnosis coding
Index and Tabular List verification
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