CPT® Code 86325

Immunoelectrophoresis is a laboratory technique utilized to separate and characterize proteins based on their specific interactions with antibodies. This method is particularly valuable in the analysis of various body fluids, allowing for the identification and quantification of immunoglobulins, which are proteins that function as antibodies. The procedure can be performed using different methodologies, including one-dimensional and two-dimensional techniques, each designed to enhance the resolution and specificity of protein separation. While the serum test, identified by CPT® Code 86320, is commonly employed to evaluate levels of abnormal immunoglobulins associated with conditions such as multiple myeloma, chronic lymphocytic leukemia, Waldenstrom macroglobulinemia, amyloidosis, and lymphoma, CPT® Code 86325 specifically pertains to immunoelectrophoresis conducted on other bodily fluids. These fluids may include cerebrospinal fluid, synovial fluid, and urine, providing critical insights into various pathological conditions. The use of immunoelectrophoresis has been somewhat supplanted by the immunofixation method, which offers enhanced specificity in identifying monoclonal immunoglobulins. However, CPT® Code 86325 remains relevant for cases where analysis of non-serum fluids is necessary for diagnostic purposes.