Interestingly, unlike many codes, vaccinations do not get more complicated in ICD-10. 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. All Z codes must be accompanied by a corresponding procedure code.
ICD-10 code Z87. 19 for Personal history of other diseases of the digestive system is a medical classification as listed by WHO under the range - Factors influencing health status and contact with health services .
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.
ICD-10 code R76. 0 for Raised antibody titer is a medical classification as listed by WHO under the range - Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified .
Z12. 11: Encounter for screening for malignant neoplasm of the colon.
“Code Z86. 010, Personal history of colonic polyps, should be assigned when 'history of colon polyps' is documented by the provider. History of colon polyp specifically indexes to code Z86.
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.
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.
ICD-10-CM Code for Encounter for immunization Z23.
What is an MMR titer? An MMR titer is a blood test that checks for immunity (from prior vaccination or infection) to the Measles, Mumps and Rubella infections. Who gets an MMR titer test? An MMR titer test is typically ordered by healthcare workers and students studying in healthcare programs.
ICD-10 code R76. 8 for Other specified abnormal immunological findings in serum is a medical classification as listed by WHO under the range - Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified .
Contact with and (suspected) exposure to varicella Z20. 820 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 Z20. 820 became effective on October 1, 2021.