Z28.3 UNDERIMMUNIZATION STATUS

Code Information

  • Diagnosis Code: Z28.3
  • Short Description: Underimmunization status
  • Long Description: Underimmunization status
  • Code Version: 2025 ICD-10-CM

The code Z28.3 is NOT VALID for claim submission

Code Classification

References to Index of Diseases and Injuries

The code Z28.3 has the following ICD-10-CM references to the Index of Diseases and Injuries

    Crosswalk Information

    ICD-10 Code ICD-9 Code ICD-9 Description
    Z28.3 Right Arrow V15.83 Hx underimmunizn status
    This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

    Similar Codes

    ICD-10 Code ICD-10 Description
    Z28 Immunization not carried out and underimmunization status
    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
    Z28.31 Underimmunization for COVID-19 status
    Z28.310 Unvaccinated for COVID-19
    Z28.311 Partially vaccinated for COVID-19
    Z28.39 Other 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
    This page was last updated on: 10/1/2024
    Previous Code
    Next Code