Colonoscopy Coding, Billing and Reimbursement - Latest Payer Rules and Guidelines

Presenter: Shelley C. Safian, PhD, MAOM, RHIA, CCS-P

Date: Thursday, September 17, 2026

Time: 3 pm ET | 2 pm CT | 1 pm MT | 12 pm PT

Duration: 60 minutes

Course Description

Colonoscopies are an important preventive care event and early detection of colon cancer. As with any other episode of malignancy cancer, the earlier it is identified, the easier to treat, the less expensive to treat, and the patient has a dramatically increased quality of life. Colonoscopies are covered by the Affordable Care Act as free to those who have health insurance. As physically unpleasant the experience may be, the process for medical coding specialists to report this procedure on a claim form should not be. Using the accurate procedure code and modifier are key to receiving optimal reimbursement and this all must be founded in the physician’s documentation.

We will discuss different types of Colonoscopy procedures and reimbursement strategies. In 2026 with the recent updates to patient coverage, it will be imperative that practices and facilities understand how the reimbursement will affect them. We will show you tips for Prior Authorization and make sure you understand coverage and documentation requirements. We will review the common billing errors made when billing for Colonoscopy procedures. We will discuss the Payer Guidelines for Commercial vs CMS Guidelines and proper Modifier Usage. Many payers require a specific order of Diagnosis code sequencing and misinterpreting these guidelines can lead to costly denials.

Learning Outcomes

• Build understanding about the different types of colonoscopies
• Interpret the medical necessity for each type of colonoscopy
• Determine the accurate procedure code and modifier to report
• Identify the types of anesthesia to be reported
• Evaluate circumstances for other colorectal cancer screenings
• Learn how to avoid costly Billing denials
• Identify the proper anatomical structures
• Learn the Coding Guidelines for CMS
• Learn the Coding Guidelines for CPT
• Know Proper ICD10-CM Sequencing
• Documentation Requirements

Areas Covered in the Session

• What is a colonoscopy?
• Types of colonoscopy
• Screening colonoscopy
• Diagnostic colonoscopy
• Therapeutic colonoscopy
• Surveillance colonoscopy
• Diagnosis coding to support medical necessity
• Reporting the accurate procedure: Non-Medicare
• Reporting the procedure – Medicare
• G0105 Colorectal cancer screening; colonoscopy on individual at high risk
• G0121 Colorectal cancer screening; colonoscopy on individual not meeting the criteria for high risk
• What constitutes High-Risk?
• Modifiers and its proper use
• 33 Preventive Services
• 53 Discontinued Procedure [beyond splenic flexure but not to cecum]
• KX Beneficiary qualifies for an exception [colonoscopy following a positive result from a non-invasive stool test.]
• PT Colorectal cancer screening test; converted to diagnostic test or other procedure
• Anesthesia: General
• Anesthesia: Conscious Sedation
• Other Colorectal Cancer Screening
• 81528 Screening The Cologuard™ – Multi-target Stool DNA (sDNA) Test
• 82270 Screening Guaiac-based Fecal Occult Blood Test (gFOBT)
• G0120 Screening Barium Enema Test
• G0327 Screening Blood-based Biomarker Tests
• G0328 Screening Immunoassay-based Fecal Occult Blood Test (iFOBT)
• Coverage Guidelines for Surveillance Colonoscopy
• LCD policies that affect Colonoscopy reimbursement
• Prior Authorization Tips
• How the CMS Final Rule affects patients and Physicians
• Coverage and Benefits in 2026
• Payer Rules and Guidelines for Colonoscopy
• Live Q&A Session

Recommended Participants

• Physician Office Practice Managers
• Healthcare Administrators
• Risk Managers
• Providers
• Healthcare Executives
• Medical Officers
• Physicians and Non-Physician Providers
• Registered Nurses
• Nurse Practitioner
• Medical Billing Professionals
• Medical Coding Professionals
• Revenue Cycle Managers
• Medical Auditors
• Healthcare Providers
• IT Officers
• Compliance Officers

About the Presenter

Shelley C. Safian, PhD, MAOM, RHIA, CCS-P has been teaching Health Care Administration, Health Information/ Informatics Management, and Medical Billing and Coding, both onsite and online, for more than 20 years. She has a PhD in Health Care Administration and Masters in Organizational Management/ Health Care Administration/ Health Informatics. In addition, she is the author of eight textbooks, including, “Let’s Code It!” 4th edition, which was released by McGraw Hill in January 2024 and ”You Code It! 4th edition”, in January 2023. Safian is a Registered Health Information Administrator (RHIA), Health Care Information Security and Privacy Professional (HCISPP), Certified Coding Specialist (CCS-P), AAPC-Approved Instructor (COC, CPC-I).