H00.1: Chalazion

The glands in your eyelid are inflamed.

The eyelids along with the lashes are located above and under the eye. They protect the eye from injuries and drying out. Fat, muscles, and several glands are included in the eyelid, among other things. For example, sebaceous glands form fatty mucus for the layer of fluid on the eye.

Because a sebaceous gland in your eyelid has been inflamed for a long time, the gland’s drainage has got blocked. As a result, the sebum has accumulated in the gland. A solid lump has formed on your eyelid. Often there are no symptoms.

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).