CPT® Code 84207

The CPT® Code 84207 refers to a laboratory test that measures the levels of pyridoxal phosphate, which is the active form of Vitamin B6, in the blood. This test is crucial for assessing the nutritional status of Vitamin B6 in the body. Pyridoxal phosphate plays a vital role as a coenzyme in numerous biochemical reactions, including those involved in amino acid and lipid metabolism, gluconeogenesis, and the synthesis of neurotransmitters and histamine. Additionally, it is essential for hemoglobin synthesis and function, as well as gene expression. The measurement of pyridoxal 5-phosphate levels provides a reliable indicator of Vitamin B6 status, which is important for various physiological functions. To perform this test, a blood sample is collected through venipuncture, which is a procedure that can be reported separately. The serum or plasma obtained from the blood sample is then analyzed using quantitative high-performance liquid chromatography, a precise method that allows for accurate measurement of the vitamin levels in the body.