icterus
CH-15K20 is a type of kernicterus, a neurological disorder caused by an abnormally high level of bilirubin in the bloodstream. Bilirubin is a breakdown product of red blood cells that normally passes through the body, but in some cases can build up in the bloodstream and cause damage to brain tissues. Kernicterus usually results in permanent damage to the brain, including hearing loss, learning disabilities, and physical disabilities. CH-15K20 is a type of hyperbilirubinemia, or elevated bilirubin levels, which is the cause of kernicterus. It is caused by a genetic mutation in the UGT1A1 gene, which is responsible for transporting bile from the liver to the intestines. As a result, the bilirubin is not properly processed and can build up in the bloodstream and cause kernicterus.