G93: Other disorders of brain

G93.3: Postviral fatigue syndrome

The precise cause of this disease is unknown. This can occur after contact with pathogens such as viruses, for example.

As well as extreme fatigue, the disorder may be accompanied by other symptoms. These include, for example, sleep disorders, concentration disorders and pain. Even slight exertions can cause the condition to get very much worse. The disorder affects your everyday life.