ICD-10 requires only one code (Z23) per vaccination, regardless if single or combination. Report Z23 for all vaccination diagnoses.
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.
ICD-10 code B15 for Acute hepatitis A is a medical classification as listed by WHO under the range - Certain infectious and parasitic diseases .
Z23 is the ICD-10 code that identifies an encounter for immunization(s).
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.
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. If the immunization is given during a routine preventive health care examination, Code Z23 would be a secondary code.
CPT CodeCPT CodeCPT DescriptionCPT Code Status90632Hepatitis A vaccine, adult dosage, for intramuscular useActive90633Hepatitis A vaccine, pediatric/adolescent dosage-2 dose schedule, for intramuscular useActive90634Hepatitis A vaccine, pediatric/adolescent dosage-3 dose schedule, for intramuscular useActive75 more rows
CPT® Code 80074 - Organ or Disease Oriented Panels - Codify by AAPC. CPT. Pathology and Laboratory Procedures. Organ or Disease Oriented Panels.
Description: This panel consists of the following tests: Hepatitis A antibody (HAAb), IgM antibody; • Hepatitis B core antibody (HBcAb), IgM antibody; • Hepatitis B surface antigen (HBsAg) and; • Hepatitis C antibody. Hepatitis is an inflammation of the liver resulting from viruses, drugs, toxins, and other etiologies.
Z23 may be used as a primary diagnosis for immunizations in the OP and physician setting.
ICD-10 code Z00. 129 for Encounter for routine child health examination without abnormal findings is a medical classification as listed by WHO under the range - Factors influencing health status and contact with health services .
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.