B00.5 vs B30

B00.5 (Herpesviral ocular disease) compared with B30 (Viral conjunctivitis), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.

Can these codes be reported together?

No — do not report together. B30 carries an Excludes1 note covering B00.5: “herpesviral [herpes simplex] ocular disease (B00.5)”

Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).

Side by side

	B00.5Herpesviral ocular disease	B30Viral conjunctivitis
Billing status	Non-billable header Report instead: B00.50, B00.51, B00.52, B00.53, B00.59	Non-billable header Report instead: B30.0, B30.1, B30.2, B30.3, B30.8
Classification	A00-B99 — Certain Infectious and Parasitic Diseases (A00-B99)	A00-B99 — Certain Infectious and Parasitic Diseases (A00-B99)
Definition	Herpesviral ocular disease is a non-billable ICD-10-CM category code (B00.5).	Viral conjunctivitis is a non-billable ICD-10-CM category code (B30).

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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