CPT® Code 83655

The CPT® Code 83655 refers to a laboratory test specifically designed to measure lead levels in various biological specimens, including blood, urine, hair, or nails. Lead is classified as a heavy metal that poses significant health risks due to its ability to accumulate in soft tissues and bones over time. This accumulation can lead to severe damage to the nervous system and brain, making the monitoring of lead exposure critical for health assessments. The test is essential for determining the extent of exposure to lead and for evaluating the effectiveness of any treatment administered to reduce lead levels in the body. The procedure involves obtaining a blood sample, which can be collected through a venipuncture or a capillary draw, such as a heel stick. Additionally, urine specimens can be collected either as a random voided sample or a 24-hour collection. Hair samples may be taken from various areas, including the scalp, axilla, pubic region, or face, while nail clippings are collected from all ten fingernails and toenails. All specimen types are analyzed for lead content using a sophisticated technique known as quantitative inductively coupled plasma-mass spectrometry, which provides precise measurements of lead levels in the samples tested.