ICD-10 requires only one code (Z23) per vaccination, regardless if single or combination. Report Z23 for all vaccination diagnoses.
If you administer an injection of the influenza vaccine only, report 90471. If you administer an influenza vaccine in addition to other vaccines, report the influenza injection with 90472. Note that code 90471 or 90473 cannot be reported in conjunction with 90460.Sep 20, 2021
Interestingly, unlike many codes, vaccinations do not get more complicated in ICD-10. Code Z23 is used to indicate any encounter for a vaccination. The procedure codes are used to identify the type of the immunization given and how it was administered.Nov 24, 2020
for the 2021-2022 Season. 90662=Inactivated Influenza Vaccine, quadrivalent (IIV4), split virus, preservative free, enhanced immunogenicity via increased antigen content, for intramuscular use.
Payment Allowances and Effective Dates for the 2020-2021 Flu Season:CodeLabeler NameVaccine Name90688Sanofi Pasteur SeqirusFluzone Quadrivalent (2020/2021) Afluria Quadrivalent (2020/2021)90756SeqirusFlucelvax Quadrivalent (2020/2021)9 more rows•Dec 22, 2021
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.
Z23 is a billable diagnosis code used to specify a medical diagnosis of encounter for immunization.