M1308 HCPCS Level II Code: Influenza immunization was not administered, reason not given
HCPCS Level II code, maintained by CMS. Not a CPT code: CPT (HCPCS Level I) is a separate AMA code set that MedCoder does not publish. About HCPCS Level II
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Medicare Coverage & Payment
- CMS short descriptor: Flu immunize no admin
Source: CMS HCPCS Level II release. Coverage codes indicate how Medicare treats the code, not whether a specific claim will be paid; payer policy and documentation still govern.
Coding context
Guidelines, coding notes, decision aids, relationships (with MS-DRG and CCSR classification), hierarchy, HCC, coverage and the context map: what a coder reaches for after the core. Each section names whether it is official source data, a MedCoder-derived relationship or MedCoder editorial.
Contextual Map
Every relationship of M1308 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.
Nearest codes (40)
- M1300 — 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)[Sibling]— CMS HCPCS Level II code set
- M1301 — Patient identified as a tobacco user received tobacco cessation intervention during the measurement period or in the six months prior to the measurement period (counseling and/or pharmacotherapy)[Sibling]— CMS HCPCS Level II code set
- M1302 — Screening, diagnostic, film digital or digital breast tomosynthesis (3d) mammography results documented and reviewed[Sibling]— CMS HCPCS Level II code set
- M1303 — Hospice services provided to patient any time during the measurement period[Sibling]— CMS HCPCS Level II code set
- M1304 — Patient did not receive any pneumococcal conjugate or polysaccharide vaccine on or after their 19th birthday and before the end of the measurement period[Sibling]— CMS HCPCS Level II code set
- M1305 — Patient received any pneumococcal conjugate or polysaccharide vaccine on or after their 19th birthday and before the end of the measurement period[Sibling]— CMS HCPCS Level II code set
- M1306 — Patient had anaphylaxis due to the pneumococcal vaccine any time during or before the measurement period[Sibling]— CMS HCPCS Level II code set
- M1307 — Documentation stating the patient has received or is currently receiving palliative or hospice care[Sibling]— CMS HCPCS Level II code set
- and 32 more
Change history
- January 1, 2024 — Added to the code set [Change history]— CMS release files (code change ledger)
Reference
Index terms and tables, published questions and FAQ, every source behind this page with its release and checksum, the date-of-service check and the complete change history.
Sources for this page
Codes, titles, notes, index terms and mappings on this page are transcribed from the datasets below. Relationships MedCoder computed and text MedCoder wrote are labelled where they appear.
- Code, descriptors, coverage and pricing attributes Official source data
- CMS HCPCS Alpha-Numeric (ANWEB) release — October 2026 quarterly update Release, file and checksum · Publisher’s page
- Change history and date-of-service validity Official source data
- CMS HCPCS quarterly update files, ingested into the change ledger Release, file and checksum · Publisher’s page
- Comparisons, relationships and the contextual map MedCoder-derived relationship
- Computed by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears
- Summary and FAQ answers MedCoder editorial explanation
- Written by MedCoder to explain the sources above: drafted with AI assistance, checked by a person against the release files, and labelled as MedCoder text where it appears. Not official text.
Current data releases:ICD-10-CM FY2027 · ICD-10-PCS FY2027 · HCPCS October 2026 · MS-DRG v44 · Medicare Code Editor v44.0 · NCCI PTP Q4 2026 · MUE Q4 2026 · NCD code lists 2026-01 · LCD export September 20, 2026 · All releases and sources
Labels on this page: Official source data · MedCoder-derived relationship · MedCoder editorial explanation. How to read the labels · All data sources and release dates · CMS coding rules
Cite this page
Reference this page in a research guide, syllabus or article. The release is included because code content changes each year.
MedCoder.ai. "M1308 — Influenza immunization was not administered, reason not given." HCPCS Level II October 2026. https://medcoder.ai/hcpcs/code/m1308-influenza-immunization-was-not-administered-reason-not-given
Change history
- January 1, 2024Added to the code setInfluenza immunization was not administered, reason not givenHCPCS 2024 changes
Nearest Codes in This Family
Official HCPCS Level II classifications closest to M1308 in its code family, with their registry titles.
- M1303 — Hospice services provided to patient any time during the measurement period
- M1304 — Patient did not receive any pneumococcal conjugate or polysaccharide vaccine on or after their 19th birthday and before the end of the measurement period
- M1305 — Patient received any pneumococcal conjugate or polysaccharide vaccine on or after their 19th birthday and before the end of the measurement period
- M1306 — Patient had anaphylaxis due to the pneumococcal vaccine any time during or before the measurement period
- M1307 — Documentation stating the patient has received or is currently receiving palliative or hospice care
- M1309 — Palliative care services provided to patient any time during the measurement period
- M1310 — Patient screened for tobacco use and received tobacco cessation intervention during the measurement period or in the six months prior to the measurement period (counseling, pharmacotherapy, or both),…
- M1311 — Anaphylaxis due to the vaccine on or before the date of the encounter
- M1312 — Patient not screened for tobacco use
- M1313 — Tobacco screening not performed or tobacco cessation intervention not provided during the measurement period or in the six months prior to the measurement period