G9937 HCPCS Level II code: Diagnostic colonoscopy
CMS terminated G9937: its last date of service was Dec 31, 2020. It stays here for looking up older claims; newer services need a current code.
Official description
G9937Diagnostic colonoscopy
Short description: Dig or surv colsco
HCPCS · United States
Medicare details
The indicators CMS publishes with G9937 in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Carrier judgment
- Medicare pricing
- Service not separately priced by Part B (e.g., services not covered, bundled, used by Part A only, etc.)
- Type of service
- Medical care
- BETOS category
- Undefined codes
- Added
- Jan 1, 2018
- Terminated after
- Dec 31, 2020
Where G9937 sits
- 1G codesProcedures and professional services
- 2Terminated G9937Diagnostic colonoscopy
Source and release
- Data release
- HCPCS Level II · October 2026
- Effective date
- Oct 1, 2026
- Publisher
- CMS
This page is built from the HCPCS Level II catalog that Vero Codes reads when it suggests codes: Centers for Medicare & Medicaid Services’s October 2026 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
Is HCPCS code G9937 still valid?
No. CMS terminated G9937; its last date of service was Dec 31, 2020. It is listed for looking up services from before then. Use a current code for newer services.
Does Medicare cover G9937?
CMS lists G9937’s Medicare coverage as “Carrier judgment” and its pricing as “Service not separately priced by Part B (e.g., services not covered, bundled, used by Part A only, etc.)”. Coverage and payment still depend on the patient, the setting, the documentation and the payer.
Which HCPCS Level II release does this page use?
It uses CMS’s October 2026 release, in effect from Oct 1, 2026 to Dec 31, 2026. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.
Codes beside G9937
All G codesG9931Documentation of cha2ds2-vasc risk score of 0 or 1 for men; or 0, 1, or 2 for womenG9932Documentation of patient reason(s) for not having records of negative or managed positive tb screen (e.g., patient does not return for mantoux (ppd) skin test evaluation)G9933Adenoma(s) or colorectal cancer detected during screening colonoscopyG9934Documentation that neoplasm detected is only diagnosed as traditional serrated adenoma, sessile serrated polyp, or sessile serrated adenomaG9935Adenoma(s) or colorectal cancer not detected during screening colonoscopyG9936Surveillance colonoscopy - personal history of colonic polyps, colon cancer, or other malignant neoplasm of rectum, rectosigmoid junction, and anusG9938Patients aged 66 or older in institutional special needs plans (snp) or residing in long-term care with pos code 32, 33, 34, 54, or 56 for more than 90 consecutive days during…G9939Pathologists/dermatopathologists is the same clinician who performed the biopsyG9940Documentation of medical reason(s) for not on a statin (e.g., pregnancy, in vitro fertilization, clomiphene rx, esrd, cirrhosis, muscular pain and disease during the measurement…G9941Back pain was measured by the visual analog scale (vas) within three months preoperatively and at three months (6 - 20 weeks) postoperativelyG9942Patient had any additional spine procedures performed on the same date as the lumbar discectomy/laminectomyG9943Back pain was not measured by the visual analog scale (vas) or numeric pain scale at three months (6 - 20 weeks) postoperatively