CPT® Code 86830

Antibody to human leukocyte antigens (HLA), solid phase assays (eg, microspheres or beads, ELISA, Flow cytometry); antibody identification by qualitative panel using complete HLA phenotypes, HLA Class I

The human leukocyte antigen (HLA) system is a critical component of the major histocompatibility complex (MHC), which plays a vital role in the immune system by facilitating self-recognition. This means that the MHC helps the body identify its own cells and tissues, distinguishing them from foreign substances, such as microorganisms and non-self cells. The HLA system is divided into two main classes: Class I and Class II. The testing associated with CPT® Code 86830 focuses specifically on HLA Class I. This procedure is essential for identifying the presence and characteristics of HLA alloantibodies, which are antibodies that the immune system produces against foreign HLA antigens. Such testing is particularly important in the context of organ transplantation, as it helps predict the risk of an immunological response to transplanted organs. The procedure utilizes complete HLA phenotypes to identify a wide range of antibodies, with the capability of detecting as many as 80 different antibodies through the use of a bead array containing 50 or more beads. The testing methods often employed include enzyme-linked immunosorbent assay (ELISA) and flow cytometry, which can be enhanced with Luminex technology to improve detection accuracy and efficiency.