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.
90686, “Influenza virus vaccine, quadrivalent (IIV4), split virus, preservative free, 0.5 mL dosage, for intramuscular use.”
ICD-10 requires only one code (Z23) per vaccination, regardless if single or combination. Report Z23 for all vaccination diagnoses.
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.
The ICD-10 code to use for flu vaccination is Z23, encounter for immunization. There are many CPT codes to describe influenza vaccine, varying by manufacturer, product and age group.
Administration services for these preventive vaccines are reported to Medicare using HCPCS codes as follows: G0008 administration of influenza virus vaccine.
According to ICD-10-CM guidelines, clinicians may assign code Z28. 310, “Unvaccinated for COVID-19,” when the patient has not received a dose of any COVID-19 vaccine. Clinicians may assign code Z28.
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. This is similar to ICD-9 rules.
Z23 may be used as a primary diagnosis for immunizations in the OP and physician setting.
ICD-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 .
Z00.00ICD-10 Code for Encounter for general adult medical examination without abnormal findings- Z00. 00- Codify by AAPC.