G93.7: Reye syndrome

Your liver and brain have been damaged.

The brain is made up of several areas. For example, the cerebrum is used to think and plan actions. In the cerebellum, movements are initialized and coordinated. The brain stem is responsible for various unconscious tasks such as breathing. The brain stem passes into the spinal cord.

The brain requires a lot of energy for the work it does. As a result, the brain has to have a constant supply of sugar. The brain receives a lot of sugar from the liver. Your liver has been badly damaged. As a result, your brain has received too little sugar so it has been damaged. Initially there are often headaches and a high temperature. Later one may become confused and sleepy. One may also have breathing problems or get spasms.

The precise cause of this disease is unknown. The disorder sometimes occurs after contact with pathogens. It may also be that certain medications have been taken. It is usually children that the disorder affects.

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).