N25.0: Renal osteodystrophy

Your kidneys are not working properly. This has also affected your bones.

There are normally 2 kidneys in the body. They filter blood and create urine. They thus help to detoxify the body. Furthermore, the kidneys regulate the blood pressure and salt content in the blood, among other things. If the kidneys do not work properly, the levels of important messenger substances and salts in the blood may change.

The kidneys are also involved in the production of vitamin D. If the kidneys do not work properly, the body may not produce enough vitamin D. Vitamin D is a messenger substance in the body. People need vitamin D for things like bones and the immune system. Some of the required vitamin D is produced in the skin from sunlight. This vitamin D is then activated in the liver and kidneys. However, vitamin D is also present in certain foods such as fish.

Changes in blood salts and vitamin D deficiency can affect bones. Pain and bone deformations may occur at the affected areas. If the kidneys stop working properly during childhood, the child may not grow normally.

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).