Complete ICD-10-CM coding and documentation guide for icd-10 coding for varicella titer includes clinical validation requirements, medical necessity guidelines, and coding policies.
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Essential facts and insights about ICD-10 Coding for Varicella Titer
Use ICD-10 code Z20.820 for contact with and (suspected) exposure to varicella, ensuring proper documentation in clinical notes.
Additional codes that may be used with this diagnosis
Varicella-zoster virus antibody, IgG
Use with Z20.820 for exposure testing.
The ICD-10 code for varicella titer related to exposure is Z20.820. For routine screening, use Z11.3, and for pre-vaccination, use Z23.
Document the quantitative IgG titer result, exposure context if applicable, and follow-up actions for equivocal results.