M1300Medical Services

Influenza immunization was not administered for reasons documented by clinician

Short description: Flu imm no admin doc rea

Effective date
January 1, 2024
Termination date

Related codes (M-series)

Frequently asked questions

What is HCPCS code M1300?

M1300 is a HCPCS Level II code for Influenza immunization was not administered for reasons documented by clinician.

What category is HCPCS code M1300 in?

M1300 falls under the Medical Services category of HCPCS Level II.

When did HCPCS code M1300 become effective?

M1300 has been effective since January 1, 2024, per CMS's quarterly HCPCS update.

HCPCS Level II data from CMS (public domain). HCPCS Level I (CPT) codes are not included — CPT is copyrighted by the American Medical Association. Always verify codes with authoritative sources before making coding or billing decisions.