H81.1: Benign paroxysmal vertigo

You keep feeling dizzy.

Your dizziness is being caused by tiny crystals (‘ear rocks’) that have become dislodged in your inner ear. These crystals are normally embedded in a sort of gel. When we move our head, the crystals move too. Sensory cells in the inner ear perceive the movement of the crystals. As a result, we can sense whether we are moving up, down or sideways. This is vital for our balance. In your case, the crystals have become detached from the gel. Consequently they can float about freely. This upsets one’s balance and causes dizziness.

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).