CPT® Code 82715

The CPT® Code 82715 refers to a laboratory test known as the fat differential in feces, which is performed quantitatively. This test is designed to measure the levels of fat or lipids present in fecal matter. The human body processes dietary fats in the intestine through the action of pancreatic enzymes and bile. During this process, neutral fats, which include monoglycerides, diglycerides, and triglycerides, are broken down into free fatty acids, a process referred to as fat splitting. An increase in the levels of neutral fats in the feces may indicate issues related to the synthesis or secretion of pancreatic enzymes and/or bile, suggesting potential pancreatic dysfunction. Conversely, elevated levels of split fats can signify impaired nutrient absorption, which may lead to various gastrointestinal symptoms. Common symptoms associated with excess fat in feces include persistent diarrhea, abdominal pain, and steatorrhea, which is characterized by the presence of fatty stools. To conduct this test, a stool sample is collected over a specified duration, which can be 24, 48, or 72 hours. It is crucial that the sample remains uncontaminated by urine, toilet water, or toilet paper to ensure accurate results. The analysis of the fecal sample is performed using nuclear magnetic resonance spectroscopy, which allows for the quantification of the differential fat composition, including components such as cholesterol, phospholipids, and triglycerides.