Billing and Coding: Lab: Flow Cytometry

Flow cytometry is used to analyze cellular components of blood, CSF, bone marrow, lymphoreticular tissues, and fine needle aspirates; coverage is determined under LCD L34513. Testing is limited to up to 24 markers without additional medical necessity documentation; flow cytometry to detect/identify/enumerate bacteria or viruses for chronic rhinosinusitis (with or without polyps) is investigational and not covered. Claims must include the appropriate CPT code, 1 unit of service, and an appropriate ICD-10-CM diagnosis code.

"Flow cytometry may be used to analyze cellular components of body fluids and lymphoreticular tissues, including peripheral blood, cerebrospinal fluid (CSF), bone marrow, lymph nodes, tonsil, spleen..."

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