Billing and Coding: Lab: Flow Cytometry

Flow cytometry is covered per LCD L36094 for appropriate indications on blood, CSF, bone marrow and lymphoreticular tissues and is limited to up to 24 markers without additional medical-necessity documentation; flow cytometry to detect/identify or enumerate bacteria or viruses in chronic rhinosinusitis (with or without polyps) is investigational and not covered by Medicare. Billing requires submission of the appropriate CPT code with 1 unit of service and the correct ICD-10-CM diagnosis code.