E23.1: Drug-induced hypopituitarism

Your pituitary gland is not working hard enough. This is caused by drugs.

The pituitary gland is a gland in the brain. Many messenger substances are created for the body in this gland. These messenger substances influence growth, metabolism and sex hormones, for example.

If the pituitary gland does not work enough, the amount of some messenger substances in the blood may be too low. As a result, you may have a wide variety of symptoms. For example, you may not grow properly. The thyroid gland and other glands in the body may sometimes not work properly. Or you might have psychological problems.

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).