T41.5: Poisoning: Therapeutic gases

You have been poisoned by a gas.

Various gases can be used to treat certain illnesses or in operations. Such gases include oxygen and carbon dioxide, for example.

A gas can cause poisoning if, for example, too much of it is inhaled. The gas may also have been inhaled or administered by mistake.

Poisoning by a gas can cause headaches, for example. You may also feel dizzy. You may have breathing difficulties. Your heart may beat more quickly. You may feel sleepy or lose consciousness.

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).