Z01.84
Billable codeEncounter for antibody response examination
The ICD-10 code for encounter for antibody response examination is Z01.84.
Clinical notes
Excludes1 (not coded here)
An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).
- encounter for allergy testing (Z01.82)
Also known as
Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.
- Encounter for immunity status testing
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •Confirm the excluded condition(s) listed above are not also present — Excludes1 conditions cannot be coded together with this one.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- Z01.81Encounter for preprocedural examinationsnon-billable header
- Z01.82Encounter for allergy testing
- Z01.83Encounter for blood typing
- Z01.89Encounter for other specified special examinations
- Z01.84Encounter for antibody response examination
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- V7261
Associated MS-DRGs
Z01.84 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.