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Compare/B73 vs B74

B73 vs B74

B73 (Onchocerciasis) compared with B74 (Filariasis), 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. B74 carries an Excludes2 note covering B73: “onchocerciasis (B73)”

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

Side by side

B73OnchocerciasisB74Filariasis
Billing statusNon-billable header

Report instead: B73.00, B73.01, B73.02, B73.09, B73.1

Non-billable header

Report instead: B74.0, B74.1, B74.2, B74.3, B74.4

ClassificationA00-B99 — Certain Infectious and Parasitic Diseases (A00-B99)A00-B99 — Certain Infectious and Parasitic Diseases (A00-B99)
DefinitionOnchocerciasis is a non-billable ICD-10-CM category code (B73).Filariasis is a non-billable ICD-10-CM category code (B74).
Includes
onchocerca volvulus infection
onchocercosis
river blindness
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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