J04.0: Acute laryngitis

Your larynx is inflamed.

The larynx can be seen particularly well in men as a bulging area at the front of the neck. This area is also called the Adam’s apple. The larynx is important for breathing and speaking. It consists mainly of cartilage, ligaments, and muscles. The vocal cords are also located in the larynx.

The vocal cords may swell up due to the inflammation. As a result, the voice can become hoarse and you may have a cough. You may also temporarily lose your voice.

An inflammation in the larynx may be caused by pathogens. The larynx can also become inflamed if you put a lot of strain on your voice.

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).