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Compare/B30 vs H10.23

B30 vs H10.23

B30 (Viral conjunctivitis) compared with H10.23 (Serous conjunctivitis, except viral), 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. H10.23 carries an Excludes1 note covering B30: “viral conjunctivitis (B30.-)”

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

B30Viral conjunctivitisH10.23Serous conjunctivitis, except viral
Billing statusNon-billable header

Report instead: B30.0, B30.1, B30.2, B30.3, B30.8

Non-billable header

Report instead: H10.231, H10.232, H10.233, H10.239

ClassificationA00-B99 — Certain Infectious and Parasitic Diseases (A00-B99)H00-H59 — Diseases of the Eye and Adnexa (H00-H59)
DefinitionViral conjunctivitis is a non-billable ICD-10-CM category code (B30).Serous conjunctivitis, except viral is a non-billable ICD-10-CM category code (H10.23).
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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