E80.4: Gilbert syndrome

You cannot break down bile pigments properly. Because of that, your eyes and skin sometimes turn yellow.

When old blood cells are broken down, bile pigments come into being. These bilirubins are modified by a protein in the liver.

You have less of this protein. This condition is congenital, which means you were born with it. If the protein is not working properly, bile pigments will accumulate in the body. The less you have of this protein, the more bile pigments accumulate. That is especially the case when the liver has to do a lot of work. The liver has to work a lot when you drink alcohol or when you have contact with pathogens. Your eyes or skin sometimes appear yellow as a result.

The disease is usually harmless and does not have to be treated.

Additional indicator

On medical documents, the ICD code is often appended by letters that indicate the diagnostic certainty or the affected side of the body.

  • G: Confirmed diagnosis
  • V: Tentative diagnosis
  • Z: Condition after
  • A: Excluded diagnosis
  • L: Left
  • R: Right
  • B: Both sides

Further information


This information is not intended for self-diagnosis and does not replace professional medical advice from a doctor. If you find an ICD code on a personal medical document, please also note the additional indicator used for diagnostic confidence.
Your doctor will assist you with any health-related questions and explain the ICD diagnosis code to you in a direct consultation if necessary.


Provided by the non-profit organization “Was hab’ ich?” gemeinnützige GmbH on behalf of the Federal Ministry of Health (BMG).