R70.1: Abnormal plasma viscosity

A blood test found that the viscosity of the liquid part of your blood has changed.

Blood is made up of a liquid part and different blood cells, among other things.

The liquid part of your blood contains proteins. The protein level largely determines the viscosity of the liquid blood part. If the viscosity has changed, the blood may be more or less viscous than usual. This may change the fluidity of the blood. Changes in viscosity can occur when certain disorders are present. For example, blood may be more viscous in the case of disorders that involve a very elevated level of protein in the blood.

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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