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HCPCS Level II Current in October 2026

M1171

Patient received at least one td vaccine or one tdap vaccine between nine years prior to the encounter and the end of the measurement period

Release
October 2026
Effective
Official source (opens in a new tab)

Version History

How M1171 appears in each release imported from the official files, newest first.

  1. October 2026 Effective

    Current

    Patient received at least one td vaccine or one tdap vaccine between nine years prior to the encounter and the end of the measurement period

  2. July 2026 Effective

    Unchanged

    Patient received at least one td vaccine or one tdap vaccine between nine years prior to the encounter and the end of the measurement period

  3. April 2026 Effective

    Unchanged

    Patient received at least one td vaccine or one tdap vaccine between nine years prior to the encounter and the end of the measurement period

  4. January 2026 Effective

    Unchanged

    Patient received at least one td vaccine or one tdap vaccine between nine years prior to the encounter and the end of the measurement period

Data Source

Code information on this page is derived from the October 2026 HCPCS Level II files published by CMS.

Release
October 2026
Effective
Source file
october-2026-alpha-numeric-hcpcs-file.zip

Official HCPCS Level II source files (opens in a new tab)

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