R17.9: Hyperbilirubinaemia without mention of jaundice, not elsewhere classified

Hyperbilirubinaemia without mention of jaundice is a medical condition where there is an excessive presence of bilirubin, a yellow-orange substance, in the blood. This excess usually arises due to an increase in the production of bilirubin, decreased removal of it from the bloodstream, or a combination of both. Bilirubin is produced by the normal breakdown of red blood cells, and it usually gets processed by the liver and eliminated from the body. However, with hyperbilirubinaemia, this process is disturbed, which leads to an accumulation of bilirubin in the blood. In contrast to other conditions related to high bilirubin levels, this particular form occurs without signs of jaundice, which typically presents as yellowing of skin and eyes. Symptoms of hyperbilirubinaemia can, therefore, be less obvious and often include fatigue, abdominal pain, and a change in the color of urine or stools. It's essential to address this condition as it may signal underlying issues with the liver or blood cells.