E53.9: Vitamin B deficiency, unspecified

You have been found to have a vitamin B deficiency.

Vitamins are substances the body needs for many tasks. The body is unable produce most vitamins by itself. These vitamins must be taken in through food. There are various B vitamins. These are distinguished with successive numbers.

You may have taken insufficient vitamin B with your food. In some situations, your body needs more vitamin B than normally. You can then take additional vitamin B by injection or as tablets.

If you have insufficient vitamin B in your body, you may have various symptoms. The skin on your hands or feet may feel numb. You may feel feeble or your skin may appear pale. The lining of your stomach may also be inflamed.

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).