CPT® Code 82370

The CPT® Code 82370 refers to a laboratory test specifically designed for the analysis of renal calculi, commonly known as kidney stones. This procedure utilizes X-ray diffraction to determine the composition of the stones formed in the kidneys. As the kidneys filter blood and produce urine, various chemicals can precipitate, leading to the formation of crystals. These crystals may consist of minerals, cysteine, or a combination of both. The presence of kidney stones can result in significant complications, including obstruction of urine and blood flow within the kidneys, or they may dislodge and travel down the ureters. This movement can stretch, irritate, and potentially damage the walls of the ureters. To conduct the analysis of the calculi, urine is collected in a clean container and subsequently strained through a fine mesh to capture the stones. Once collected, the calculi are transported to a laboratory for further examination. Typically, a qualitative analysis of the stones is performed first, which is documented separately. Following this, samples from the surface, core, and cross-section of the stones are taken for detailed analysis. The analysis may involve infrared spectrometry, as indicated by CPT® Code 82365, or, in the case of CPT® Code 82370, the stones are subjected to X-ray diffraction. This technique generates a diffractogram, which is then compared against a comprehensive database of known stone composition materials, allowing for an accurate determination of the composition of the calculi.