G9439 HCPCS Level II code: P2y inhibitor not prescribed for documented reasons (e.g., allergy, medical intolerance, history of bleed)
CMS terminated G9439: its last date of service was Dec 31, 2016. It stays here for looking up older claims; newer services need a current code.
Official description
G9439P2y inhibitor not prescribed for documented reasons (e.g., allergy, medical intolerance, history of bleed)
Short description: P2y inhib not presc doc reas
HCPCS · United States
Medicare details
The indicators CMS publishes with G9439 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, 2016
Where G9439 sits
- 1G codesProcedures and professional services
- 2Terminated G9439P2y inhibitor not prescribed for documented reasons (e.g., allergy, medical intolerance, history of bleed)
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 G9439 still valid?
No. CMS terminated G9439; its last date of service was Dec 31, 2016. It is listed for looking up services from before then. Use a current code for newer services.
Does Medicare cover G9439?
CMS lists G9439’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 G9439
All G codesG9433Death, permanent nursing home resident or receiving hospice or palliative care any time during the measurement periodG9434Asthma not well-controlled based on the act, c-act, acq, or ataq score, or specified asthma control tool not used, reason not givenG9435Aspirin prescribed at dischargeG9436Aspirin not prescribed for documented reasons (e.g., allergy, medical intolerance, history of bleed)G9437Aspirin not prescribed at dischargeG9438P2y inhibitor prescribed at dischargeG9440P2y 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 1992