M1300
HCPCSFlu imm no admin doc rea
Official HCPCS Level II 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)
HCPCS Level II code M1300 is maintained by CMS and is active in the current quarterly release.
Short descriptor
Flu imm no admin doc rea
Added to HCPCS: 2024-01-01
Nearby codes in M1
- M1292Pt 66+ frail inpt adv ill
- M1293Calc bmi abv up param f/u
- M1294Bp scrn perf rec interval
- M1295Pt hx tot col or colon ca
- M1296Calc bmi norm parameters
- M1297Bmi not doc medrsn ptref
- M1298Doc pt preg dur msrmt pd
- M1299Flu immunize order/admin
- M1301Pt recv tbco cess interv
- M1302Scrn mam perf rslts doc
- M1303Hospc serv dur meas pd
- M1304No pneum vax admin 19+
- M1305Pneum vax admin 19+
- M1306Pt anphx due to pneum
- M1307Doc pt pal or hospice
- M1308Flu immunize no admin
Where this code sits
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HCPCS Level II July 2026 quarterly update. Centers for Medicare & Medicaid Services (CMS), “July 2026 Alpha-Numeric HCPCS File” (HCPC2026_JUL_ANWEB_06172026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.