G9450 HCPCS Level II code: History of injection drug use
CMS terminated G9450: its last date of service was Dec 31, 2021. It stays here for looking up older claims; newer services need a current code.
Official description
G9450History of injection drug use
Short description: Hx injec drug use
HCPCS · United States
Medicare details
The indicators CMS publishes with G9450 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, 2015
- Terminated after
- Dec 31, 2021
Where G9450 sits
- 1G codesProcedures and professional services
- 2Terminated G9450History of injection drug use
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 G9450 still valid?
No. CMS terminated G9450; its last date of service was Dec 31, 2021. It is listed for looking up services from before then. Use a current code for newer services.
Does Medicare cover G9450?
CMS lists G9450’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 G9450
All G codesG9440P2y inhibitor not prescribed at dischargeG9441Statin prescribed at dischargeG9442Statin not prescribed for documented reasons (e.g., allergy, medical intolerance)G9443Statin not prescribed at dischargeG9448Patients who were born in the years 1945 to 1965G9449History of receiving blood transfusions prior to 1992G9451Patient received one-time screening for hcv infectionG9452Documentation of medical reason(s) for not receiving hcv antibody test due to limited life expectancyG9453Documentation of patient reason(s) for not receiving one-time screening for hcv infection (e.g., patient declined, other patient reasons)G9454One-time screening for hcv infection not received within 12-month reporting period and no documentation of prior screening for hcv infection, reason not givenG9455Patient underwent abdominal imaging with ultrasound, contrast enhanced ct or contrast mri for hccG9456Documentation of medical or patient reason(s) for not ordering or performing screening for hcc. medical reason: comorbid medical conditions with expected survival < 5 years…