B01.9: Varicella without complication

You have chickenpox.

Chickenpox are caused by specific pathogens. These pathogens are viruses. With chickenpox, small red blisters and pustules form all over the body. Blisters do not form on the palms of the hands or soles of the feet. These blisters and pustules can be very itchy. You may also get a fever. The chickenpox usually clears up on its own after a week.

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).

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Chickenpox (varicella)

Typical signs of chickenpox are an extremely itchy skin rash with red blisters and a slight fever. This viral infection most frequently affects children between the ages of 2 and 10.