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 .
ICD-10-CM Code for Encounter for screening for other viral diseases Z11. 59.
Z23 may be used as a primary diagnosis for immunizations in the OP and physician setting.
The ICD-10-PCS code assignment for the vaccination is 3E01340 for intramuscular injection of the flu vaccine.
Table 3Diagnosis codes defining influenzaICD-9-CM codeDescriptionJ09.X2Influenza due to identified novel influenza A virus with other respiratory manifestationsJ09.X3Influenza due to identified novel influenza A virus with gastrointestinal manifestations32 more rows
Z00.00ICD-10 Code for Encounter for general adult medical examination without abnormal findings- Z00. 00- Codify by AAPC.
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.
Z23 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2022 edition of ICD-10-CM Z23 became effective on October 1, 2021.
encounter for a vaccinationCode 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. All Z codes must be accompanied by a corresponding procedure code.
90688=Inactivated Influenza Vaccine, quadrivalent (IIV4), split virus, 0.5-mL dosage, for intramuscular use. Source: 2021 CPT. Current Procedural Terminology. NDC = National Drug Code.
For immunization administration other than COVID-19, codes 90460–90474 are reported for the administration of the vaccine, along with the appropriate vaccine/toxoid code (90476–90756) targeting the organism.
Code 90460 is reported for each separate administration of single component vaccines and/or first component of a combination vaccine.