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Compare/B01 vs B10

B01 vs B10

B01 (Varicella [chickenpox]) compared with B10 (Other human herpesviruses), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).

Can these codes be reported together?

Yes, when both are documented. B10 carries an Excludes2 note covering B01: “human herpesvirus 3 (B01.-, B02.-)”

Excludes2 marks distinct conditions — both may be reported when both are documented.

Yes, when both are documented. B10 carries an Excludes2 note covering B01: “varicella (B01.-)”

Excludes2 marks distinct conditions — both may be reported when both are documented.

Side by side

B01Varicella [chickenpox]B10Other human herpesviruses
Billing statusNon-billable header

Report instead: B01.0, B01.11, B01.12, B01.2, B01.81

Non-billable header

Report instead: B10.01, B10.09, B10.81, B10.82, B10.89

ClassificationA00-B99 — Certain Infectious and Parasitic Diseases (A00-B99)A00-B99 — Certain Infectious and Parasitic Diseases (A00-B99)
DefinitionVaricella [chickenpox] is a non-billable ICD-10-CM category code (B01).Other human herpesviruses is a non-billable ICD-10-CM category code (B10).
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Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources