CPT® Code 88184

The CPT® Code 88184 refers to a specific laboratory procedure known as flow cytometry, which is utilized to analyze cell surface, cytoplasmic, or nuclear markers. This procedure is performed on samples such as whole blood, serum, or bone marrow. Flow cytometry is a sophisticated technique that allows for the quantitative assessment of cell populations that have been tagged with fluorescent dyes. These tagged cells are suspended in a fluid medium and passed through a specialized measurement apparatus, where they are counted and analyzed based on their fluorescent characteristics. This method is particularly valuable in the diagnosis and monitoring of various hematological conditions, including lymphomas, leukemias, and autoimmune diseases. The procedure involves obtaining a sample through a separately reportable process, and the analysis can provide critical information regarding specific markers. For instance, whole blood may be tested for the expression of B-Cell CD20 to evaluate the effectiveness of rituximab therapy in patients with certain malignancies. Additionally, the presence of ZAP-70 can be assessed to stratify risk in newly diagnosed chronic lymphocytic leukemia (CLL) patients. Flow cytometry can also be employed to investigate T-cell populations for clonality and phenotypical abnormalities, aiding in the diagnosis of T-cell lymphoproliferative disorders. Moreover, in the context of post-bone marrow transplant patients, sorted cells from whole blood can be analyzed for chimerism, which involves examining autosomal and gender markers. Serum samples may be evaluated for basophil or mast cell IgE levels, particularly in patients experiencing chronic urticaria without identifiable exogenous allergens. The procedure is also applicable in diagnosing hematopoietic neoplasms, such as leukemia and lymphoma, and can confirm hereditary spherocytosis through the assessment of RBC Band 3 Protein Reduction. It is important to note that CPT® Code 88184 is specifically designated for the technical component of the first marker analyzed and is billed only once, while additional markers are reported using CPT® Code 88185.