ICD-10 Code: Z23 Get payment allowances & effective dates for the 2021-2022 season. Learn about claims & roster billing.
90686, “Influenza virus vaccine, quadrivalent (IIV4), split virus, preservative free, 0.5 mL dosage, for intramuscular use.” 90688, “Influenza virus vaccine, quadrivalent (IIV4), split virus, 0.5 mL dosage, for intramuscular use.”
90688=Inactivated Influenza Vaccine, quadrivalent (IIV4), split virus, 0.5-mL dosage, for intramuscular use. Source: 2021 CPT.
ICD-10 code Z23 for Encounter for immunization is a medical classification as listed by WHO under the range - Factors influencing health status and contact with health services .
Report codes 90471-90474 for immunization administration of any vaccine that is not accompanied by face-to-face physician or other qualified health care professional counseling the patient and/or family, or for patients over 18 years of age.
Administration services for these preventive vaccines are reported to Medicare using HCPCS codes as follows: G0008 administration of influenza virus vaccine.
Flu Vaccine Administration Coding +90472 Immunization administration (includes percutaneous, intradermal, subcutaneous, or intramuscular injections); each additional vaccine (single or combination vaccine/toxoid) (List separately in addition to code for primary procedure).
Use the age-appropriate codes as needed: 90657 Influenza virus vaccine, split virus, when administered to children 6-35 months of age, for intramuscular use.
Z23 may be used as a primary diagnosis for immunizations in the OP and physician setting.
85.
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.
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.
Flu Vaccine Administration Coding +90472 Immunization administration (includes percutaneous, intradermal, subcutaneous, or intramuscular injections); each additional vaccine (single or combination vaccine/toxoid) (List separately in addition to code for primary procedure).
90471: Immunization administration for percutaneous, intra-dermal, subcutaneous or intramuscular injections, initial.
For vaccines given the same day as a G-Code vaccine, use 90471. For example, if a patient receives a flu shot and tetanus shot, you would bill G0008 for the flu vaccine and 90471 for the tetanus vaccine; also add modifier 59 (distinct procedural service) to the G code.