CPT® Code 84630

The CPT® Code 84630 refers to the laboratory test for measuring zinc levels in the body, which can be performed on either blood or urine samples. Zinc is a vital mineral that plays a crucial role in various physiological functions, including growth and development. It is essential for maintaining a healthy immune system, wound healing, and protein synthesis. A deficiency in zinc can lead to significant health issues, such as growth retardation in children, delayed puberty, diarrhea, and an increased risk of infections due to compromised immune function. Factors that may contribute to decreased zinc levels include malnutrition, infections, inflammation, stress, pregnancy, and the use of oral contraceptives. Conversely, zinc levels may be elevated in situations such as prolonged fasting or excessive intake of zinc supplements. The testing process involves obtaining a blood sample through venipuncture, which is a separate reportable procedure, or collecting urine either through a 24-hour collection or a random sample. The analysis of whole blood is conducted using quantitative flame atomic absorption spectroscopy, while serum and urine samples are evaluated using quantitative inductively coupled plasma mass spectrometry, both of which are precise methods for determining zinc concentration.