G8483 — Influenza immunization was not administered for reasons documented by clinician (e.g., patient allergy or other medical reasons, patient declined or other patient reasons, vaccine not available or other system reasons)
G8483 is a HCPCS Level II code for influenza immunization was not administered for reasons documented by clinician (e.g., patient allergy or other medical reasons, patient declined or other patient reasons, vaccine not available or other system reasons). It belongs to the Procedures and Professional Services (Temporary) section. It was terminated on December 31, 2024 and is not valid on new claims.
This code has been terminated
CMS terminated G8483 on December 31, 2024. It stays in the file as history — a claim you are auditing from before that date may legitimately carry it — but it must not appear on a new claim. The adjacent codes below are the usual place to look for its replacement.
Medicare coverage: Carrier judgment
Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.
From the coverage field of the CMS Alpha-Numeric HCPCS File, release 2026Q3-Jul. This states Medicare’s position on the code, not on your particular claim.
The CMS record for G8483
- Long descriptor
- Influenza immunization was not administered for reasons documented by clinician (e.g., patient allergy or other medical reasons, patient declined or other patient reasons, vaccine not available or other system reasons)
- Short descriptor
- Flu imm no admin doc rea
- Added
- January 1, 2008
- Terminated
- December 31, 2024
- BETOS
- M5D
- Pricing indicator
- 00 — Not priced by Part B
The official wording. This is what the code means.
CMS's 28-character form, which is what shows up on a remittance advice.
When CMS introduced the code.
When CMS retired it.
Berenson-Eggers Type of Service — CMS's own analytic grouping.
Service not separately priced by Part B — not covered, bundled into another service, or used by Part A only.
Codes adjacent to G8483
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If G8483 is not quite right, the correct code is very often within a few positions of it.
- G8465High or very high risk of recurrence of prostate cancer
- G8473Angiotensin converting enzyme (ace) inhibitor or angiotensin receptor blocker (arb) therapy prescribed
- G8474Angiotensin converting enzyme (ace) inhibitor or angiotensin receptor blocker (arb) therapy not prescribed for reasons documented by the clinician (e.g., allergy, intolerance, pregnancy, renal failure due to ace inhibitor, diseases of the aortic or mitral valve, other medical reasons) or (e.g., patient declined, other patient reasons)
- G8475Angiotensin converting enzyme (ace) inhibitor or angiotensin receptor blocker (arb) therapy not prescribed, reason not given
- G8476Most recent blood pressure has a systolic measurement of < 140 mmhg and a diastolic measurement of < 90 mmhg
- G8477Most recent blood pressure has a systolic measurement of >= 140 mmhg and/or a diastolic measurement of >= 90 mmhg
- G8478Blood pressure measurement not performed or documented, reason not given
- G8482Influenza immunization administered or previously receivedterminated
- G8484Influenza immunization was not administered, reason not giventerminated
- G8485I intend to report the diabetes mellitus (dm) measures groupterminated
- G8486I intend to report the preventive care measures groupterminated
- G8487I intend to report the chronic kidney disease (ckd) measures groupterminated
- G8489I intend to report the coronary artery disease (cad) measures groupterminated
- G8490I intend to report the rheumatoid arthritis (ra) measures groupterminated
- G8491I intend to report the hiv/aids measures groupterminated
- G8492I intend to report the perioperative care measures groupterminated
Questions about G8483
What is HCPCS code G8483?
G8483 is a HCPCS Level II code for influenza immunization was not administered for reasons documented by clinician (e.g., patient allergy or other medical reasons, patient declined or other patient reasons, vaccine not available or other system reasons). It sits in the Procedures and Professional Services (Temporary) section.
Does Medicare cover G8483?
The CMS HCPCS file marks G8483 as "Carrier judgment". Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.
Is G8483 still valid?
No. G8483 was terminated on December 31, 2024 and should not be used on new claims.