T57.3: Toxic effect: Hydrogen cyanide

You have poisoned yourself with hydrogen cyanide.

If you have poisoned yourself with hydrogen cyanide, it is harder to breathe. You may also not be able to breathe at all. You may also lose consciousness or have convulsions. Hydrogen cyanide is found in bitter almonds, for example. Hydrogen cyanide smells like bitter almonds.

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).