Z23Z23 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
ICD-10 requires only one code (Z23 – Encounter for immunization) per vaccination, regardless if the vaccine is a single antigen or combination of antigens. Link both the CPT vaccine product code and the CPT vaccine administration code to Z23.
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
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
Use the CPT code for the vaccine administered (90685) and link to the diagnosis code for the immunization. Because qualified counseling occurred for a patient younger than 18 years of age, bill 1 unit of 90460 for administering influenza vaccine.
G0008 for the flu vaccine ; Administration of influenza virus vaccine.Nov 5, 2019
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.
Payment Allowances and Effective Dates for the 2021-2022 Flu Season:CodeLabeler NameVaccine Name90662Sanofi PasteurFluzone High-Dose Quadrivalent (2021/2022)90672MedImmuneFluMist Quadrivalent (2021/2022)90674SeqirusFlucelvax Quadrivalent (2021/2022) (Pres Free)90682Sanofi PasteurFlublok Quadrivalent (2021/2022)6 more rows•Dec 22, 2021
90688=Inactivated Influenza Vaccine, quadrivalent (IIV4), split virus, 0.5-mL dosage, for intramuscular use. Source: 2021 CPT.
NDCs† (Syringe in package of 10)2020/2021 Outer CartonNDC 58160-885-522020/2021 SyringeNDC 58160-885-412021/2022 Outer CartonNDC 58160-887-522021/2022 SyringeNDC 58160-887-41