CPT® Code 86155

The CPT® Code 86155 refers to a chemotaxis assay, which is a laboratory test that evaluates the movement of white blood cells (leukocytes) in response to chemical signals released from injured or diseased tissues. This assay is significant in assessing immune function and monitoring cancer progression, as it provides insights into how effectively the immune system can respond to pathological conditions. During the procedure, a blood sample is collected, and various methods can be employed to analyze the chemotactic response of the white blood cells. It is essential to specify the method used for the assay, as different techniques may yield varying results. Qualitative tests may utilize aggregation methods or T-maze adaptations designed for microplate formats, allowing for the observation of cell behavior in response to stimuli. Alternatively, semi-quantitative tests may involve overlaying the cells on a specific substrate and measuring changes in opalescence, which indicates the degree of cell migration. Overall, the chemotaxis assay is a valuable tool in clinical settings for understanding immune responses and the dynamics of disease progression.