F20.4: Post-schizophrenic depression

Following a bout of schizophrenia, you are suffering from depression.

Schizophrenia is a mental illness. Your thinking, perception and mood may have changed as a result. There are different reasons for this illness. Even when the illness improves, the schizophrenia may cause various symptoms for much longer.

You still have symptoms of schizophrenia, and you are suffering from depression. With depression, you may feel very down and unable to enjoy things, for example. You may feel listless or exhausted and find everyday activities harder than before. There may be physical symptoms, too.

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).