CPT® Code 82746

The CPT® Code 82746 refers to a laboratory test that measures the levels of folic acid, also known as folate, in serum. Folic acid is a vital nutrient classified as Vitamin B9, which plays a crucial role in various bodily functions, particularly in the growth, division, and repair of cells. This nutrient is especially important during periods of rapid growth, such as fetal development during pregnancy and early infancy. Adequate folic acid levels are essential for the production of healthy red blood cells (RBCs) and for preventing anemia across all age groups. The serum folic acid test is utilized to diagnose conditions such as anemia and certain neuropathies, as well as to monitor the effectiveness of treatments for these disorders. To perform this test, a blood sample is collected through venipuncture, which is a separate procedure that must be reported accordingly. It is important to note that CPT® Code 82746 is specifically used when measuring folic acid levels in serum, while CPT® Code 82747 is designated for tests measuring folic acid levels in red blood cells. The quantitative measurement of folic acid in RBCs reflects the levels present at the time the cells were produced, which can be up to two months prior to testing. Both serum and RBC folic acid tests are typically conducted using a method known as quantitative chemiluminescent immunoassay, ensuring accurate and reliable results.