E87.8: Other disorders of electrolyte and fluid balance, not elsewhere classified

The fluid balance or salt balance in your body is changed.

A certain amount of salts and fluid must be present in the blood for the body to be able to work normally. The salts are dissolved in the blood. The salt content in the blood affects the amount of fluid that is in the body. Conversely, the amount of fluid affects how much salt is in the blood. Various places in the body measure how much fluid is present in it. There are such measuring stations for instance in the kidneys and in the right heart atrium.

The fluid balance and salt balance in the blood are influenced by many organs. The kidneys play an important role in this. The kidneys control how much fluid is excreted. The kidneys also affect the salt content in the blood. There are many messenger substances in the body that affect the fluid balance and salt balance. These messenger substances are created by the kidneys, brain and heart, for example.

In your case, the amount of fluid or salts in your blood has changed.

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.


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