M1171Medical Services

Patient received at least one td vaccine or one tdap vaccine between nine years

Short description: Pt recd 1 td/tdap 9yrs prior

Effective date
January 1, 2023
Termination date

Related codes (M-series)

Frequently asked questions

What is HCPCS code M1171?

M1171 is a HCPCS Level II code for Patient received at least one td vaccine or one tdap vaccine between nine years.

What category is HCPCS code M1171 in?

M1171 falls under the Medical Services category of HCPCS Level II.

When did HCPCS code M1171 become effective?

M1171 has been effective since January 1, 2023, 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.