B03: Smallpox

You have smallpox.

In 1980 smallpox was declared eradicated. It is caused by viruses. The viruses can be transmitted by coughing or sneezing, for example.

Early in the illness you may have headaches and back pain. You may also have a sore throat.

Smallpox typically appears as bumps on the skin. Over time the bumps develop into pus-filled blisters. The blisters then heal and usually leave scars behind.

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).