R73.0: Abnormal glucose tolerance test

Your blood sugar (glucose) levels are elevated.

The pancreas is located in the upper abdomen. You are producing messenger substances that regulate the level of sugar (glucose) in the blood.

The level of sugar (glucose) in your blood has been measured several times. You are not allowed to eat anything several hours before the 1st blood sugar measurement. You are then given a certain amount of sugar. Most of the time this should be a sugar solution that you drink. But it is also possible for you to get the sugar solution straight into a blood vessel. Then the blood sugar (glucose) level is measured again after a certain amount of time.

One or both of your blood sugar (glucose) level readings was higher than normal. This can be an indication of diabetes, for example. With diabetes, the pancreas is often damaged.

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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