CMS RBCS · Tests
General Laboratory — Medicare codes
552 codes · 6 families · CY2024 Medicare fee-for-service Part B
Clinical Chemistry
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Immunoassay
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Blood Count
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Bacterial Culture
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Drug Tests
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Venipuncture Blood Collection
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No family assigned
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"No family assigned" is CMS's own gap — RBCS leaves these codes at the subcategory level. We list them; we don't invent a family.