ICD-10-CM Code Z28

Immunization not carried out and underimmunization status

Version 2020 Non-Billable Code

Not Valid for Submission

Z28 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of immunization not carried out and underimmunization status. The code is NOT valid for the year 2020 for the submission of HIPAA-covered transactions.

ICD-10:Z28
Short Description:Immunization not carried out and underimmunization status
Long Description:Immunization not carried out and underimmunization status

Consider the following ICD-10 codes with a higher level of specificity:

  • Z28.0 - Immunization not carried out because of contraindication
  • Z28.01 - Immunization not carried out because of acute illness of patient
  • Z28.02 - Immunization not carried out because of chronic illness or condition of patient
  • Z28.03 - Immunization not carried out because of immune compromised state of patient
  • Z28.04 - Immunization not carried out because of patient allergy to vaccine or component
  • Z28.09 - Immunization not carried out because of other contraindication
  • Z28.1 - Immunization not carried out because of patient decision for reasons of belief or group pressure
  • Z28.2 - Immunization not carried out because of patient decision for other and unspecified reason
  • Z28.20 - Immunization not carried out because of patient decision for unspecified reason
  • Z28.21 - Immunization not carried out because of patient refusal
  • Z28.29 - Immunization not carried out because of patient decision for other reason
  • Z28.3 - Underimmunization status
  • Z28.8 - Immunization not carried out for other reason
  • Z28.81 - Immunization not carried out due to patient having had the disease
  • Z28.82 - Immunization not carried out because of caregiver refusal
  • Z28.83 - Immunization not carried out due to unavailability of vaccine
  • Z28.89 - Immunization not carried out for other reason
  • Z28.9 - Immunization not carried out for unspecified reason

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code Z28:

Includes

Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
  • vaccination not carried out

Code Classification

  • Factors influencing health status and contact with health services (Z00–Z99)
    • Persons with potential health hazards related to communicable diseases (Z20-Z29)
      • Immunization not carried out and underimmunization status (Z28)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020