Encounter for immunization
Billable / specificPOA exempt
Z23 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.
Inclusion terms
Includes
- Note: Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. Categories Z00-Z99 are provided for occasions when circumstances other than a disease, injury or external cause classifiable to categories A00-Y89 are recorded as 'diagnoses' or 'problems'. This can arise in two main ways:
- Note: (a) When a person who may or may not be sick encounters the health services for some specific purpose, such as to receive limited care or service for a current condition, to donate an organ or tissue, to receive prophylactic vaccination (immunization), or to discuss a problem which is in itself not a disease or injury.
- Note: (b) When some circumstance or problem is present which influences the person's health status but is not in itself a current illness or injury.
- Note: procedure codes are required to identify the types of immunizations given
Code first
Sequence the underlying condition first.
- any routine childhood examination
Code also
An additional code may be needed.
- , if applicable, encounter for immunization safety counseling (Z71.85)
Also known as
- Admission, prophylactic, vaccination
- Immunization, encounter for
- Prophylactic, vaccination
- Vaccination, encounter for
Related codes
- Z20Contact with and (suspected) exposure to communicable diseasesHeader
- Z21Asymptomatic human immunodeficiency virus [HIV] infection statusBillable
- Z22Carrier of infectious diseaseHeader
- Z28Immunization not carried out and underimmunization statusHeader
- Z29Encounter for other prophylactic measuresHeader