Inoculations and Vaccinations ICD-10-CM Coding Code Z23, which is used to identify encounters for inoculations and vaccinations, indicates that a patient is being seen to receive a prophylactic inoculation against a disease.
2022 ICD-10-CM Diagnosis Code Z23: Encounter for immunization.
If the immunization is related to exposure (eg, the administration of a Tdap vaccine as a part of wound care), the ICD-10 code describing the exposure should be used as the primary diagnosis code for the vaccine, and Z23 should be used as the secondary code.
The Z23 code includes the following note: “Code first any routine childhood examination.” Therefore, when you provide immunizations in conjunction with a well-child visit, a code for routine child health examination should be reported first, followed by Z23 for any immunizations.
ICD-10-CM Description Clinicians may assign code Z28. 311, “Partially vaccinated for COVID-19,” when the patient has received at least one dose of a multi-dose COVID-19 vaccine regimen, but has not received the doses necessary to meet the CDC definition of “fully vaccinated” at the time of the encounter.Mar 7, 2022
ICD-10 requires only one code (Z23) per vaccination, regardless if single or combination. Report Z23 for all vaccination diagnoses.
Coding for flu vaccine The ICD-10 code to use for flu vaccination is Z23, encounter for immunization.Sep 28, 2020
Other specified counselingICD-10 code Z71. 89 for Other specified counseling is a medical classification as listed by WHO under the range - Factors influencing health status and contact with health services .
2022 ICD-10-CM Diagnosis Code Z00. 129: Encounter for routine child health examination without abnormal findings.
ICD-10 Z-codes: ICD-10 diagnosis codes in chapter 21 (beginning with “Z”) are not automatically considered routine/preventive; some will be considered medical diagnosis codes.Oct 13, 2021
Coding: Bill with 90471 only (If another vaccine is given at the same visit, code the administration fee for the second injection with 90472.) When billing for multiple vaccine administrations, you can either report administration add-on codes per line or report as multiple units on one line.
Under ICD-10, you simply report code Z23 regardless of how many or what types of vaccines are administered. Properly coding the combination of CPT/HCPCS and ICD-10 codes is critical to getting paid for preventive services, particularly those covered under the Affordable Care Act (ACA).