CPT® Code 82252

A laboratory test known as the bilirubin feces qualitative test (CPT® Code 82252) is conducted to identify the presence of bilirubin in feces. Bilirubin is a pigmented waste product that is generated during the breakdown of red blood cells (RBCs). This process involves the conversion of hemoglobin from the RBCs into bilirubin, which is initially in a non-water soluble form known as unconjugated bilirubin. This unconjugated bilirubin is then transported to the liver, where it undergoes a transformation by attaching to sugar molecules, resulting in conjugated bilirubin. The conjugated form of bilirubin is water soluble, allowing it to be excreted from the liver into the small intestine. In the small intestine, bilirubin is further metabolized and ultimately eliminated from the body through feces, where it is found in the form of stercobilin. The qualitative test for fecal bilirubin is particularly significant in the diagnosis and monitoring of liver disorders, including conditions such as bile duct obstruction, as it helps to assess the liver's ability to process and excrete bilirubin effectively.