CPT® Code 83080

The CPT® Code 83080 refers to the laboratory test for measuring b-Hexosaminidase levels in serum and leukocytes. This test is crucial for assessing the activity of the b-Hexosaminidase enzyme, which plays a significant role in the hydrolysis of hexosamine. Hexosaminidase exists in three functional lysosomal forms: Hex A, Hex B, and Hex S. Hex A is particularly important as its deficiency is associated with Tay-Sachs disease and its variants, while a total deficiency of both Hex A and Hex B is indicative of Sandhoff disease and its variants. Hex S, on the other hand, is a minor component and does not contribute to the pathology of Sandhoff disease. The test involves obtaining a blood sample through venipuncture, which is a separately reportable procedure. The serum is analyzed using heat inactivation combined with fluorometric and automated techniques, while leukocytes are tested using heat inactivation with fluorometric and semiautomated methods. Each assay performed for b-Hexosaminidase levels should be reported using the code 83080.