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-CM Description Clinicians may assign code Z28. 311, “Partially vaccinated for COVID-19,” when the patient has received at least one dose of a multi-dose COVID-19 vaccine regimen, but has not received the doses necessary to meet the CDC definition of “fully vaccinated” at the time of the encounter.
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.
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.
In the absence of counseling, the administrations must be reported with codes 90471-90474. 90460-90461 are reported for administration to patients 18 years of age and under. Code 90460 is reported for each separate administration of single component vaccines and/or first component of a combination vaccine.
Vaccine Administration Code(s) Administration codes track which dose in the regimen is being administered. NDC 10/NDC11 The National Drug Code (NDC) uniquely identifies human drugs in the United States; it can be found on the vial containing the vaccine.
Providers may bill CPT 99401 with ICD-10 code Z71. 89 for no member cost-share. Providers are encouraged to counsel all members who have not yet received their COVID-19 vaccination. This service can be provided by MD/DO, NP, PA, and/or CNM.
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.
Tetanus and Diphtheria Vaccinations Billing GuidelinesCPT CodeICD-1090715S61011A90471S61011AAug 30, 2018
Z23 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
For the TDAP vaccine, report CPT code 90715 (pays approximately $31).