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ICD-10-CM Current in FY 2027

Z28.20

Immunization not carried out because of patient decision for unspecified reason

Release
FY 2027
Effective
Official source (opens in a new tab)

Hierarchy

Where Z28.20 sits in the official hierarchy. Each level is the code it is classified under.

  1. Z28 Immunization not carried out and underimmunization status
  2. Z28.2 Parent Immunization not carried out because of patient decision for other and unspecified reason
  3. Z28.20 This code Immunization not carried out because of patient decision for unspecified reason

Official Coding Notes

Reproduced verbatim from the FY 2027 ICD-10-CM files. Notes labelled as inherited are declared on a parent code and apply here too.

Includes

vaccination not carried out

Inherited from Z28 — Immunization not carried out and underimmunization status

Code Also

, if applicable, encounter for immunization safety counseling ( Z71.85 )

Inherited from Z28 — Immunization not carried out and underimmunization status

Version History

How Z28.20 appears in each release imported from the official files, newest first.

  1. FY 2027 Effective

    Current

    Immunization not carried out because of patient decision for unspecified reason

  2. FY 2026 Effective

    Unchanged

    Immunization not carried out because of patient decision for unspecified reason

Related Codes

Other codes under Z28.2

Data Source

Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.

Release
FY 2027
Effective
Source file
icd10cm-code-descriptions-2027.zip

Official ICD-10-CM source files (opens in a new tab)

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