G8484 HCPCS Level II code: Influenza immunization was not administered, reason not given
CMS terminated G8484: its last date of service was Dec 31, 2024. It stays here for looking up older claims; newer services need a current code.
Official description
G8484Influenza immunization was not administered, reason not given
Short description: Flu immunize no admin
HCPCS · United States
Medicare details
The indicators CMS publishes with G8484 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
- Specialist - other
- Added
- Jan 1, 2008
- Terminated after
- Dec 31, 2024
Where G8484 sits
- 1G codesProcedures and professional services
- 2Terminated G8484Influenza immunization was not administered, reason not given
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 G8484 still valid?
No. CMS terminated G8484; its last date of service was Dec 31, 2024. It is listed for looking up services from before then. Use a current code for newer services.
Does Medicare cover G8484?
CMS lists G8484’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 G8484
All G codesG8475Angiotensin converting enzyme (ace) inhibitor or angiotensin receptor blocker (arb) therapy not prescribed, reason not givenG8476Most recent blood pressure has a systolic measurement of < 140 mmhg and a diastolic measurement of < 90 mmhgG8477Most recent blood pressure has a systolic measurement of >= 140 mmhg and/or a diastolic measurement of >= 90 mmhgG8478Blood pressure measurement not performed or documented, reason not givenG8482Influenza immunization administered or previously receivedG8483Influenza immunization was not administered for reasons documented by clinician (e.g., patient allergy or other medical reasons, patient declined or other patient reasons…G8485I intend to report the diabetes mellitus (dm) measures groupG8486I intend to report the preventive care measures groupG8487I intend to report the chronic kidney disease (ckd) measures groupG8489I intend to report the coronary artery disease (cad) measures groupG8490I intend to report the rheumatoid arthritis (ra) measures groupG8491I intend to report the hiv/aids measures group