G31.0: Circumscribed brain atrophy

Your brain or particular parts of your brain have shrunk.

The brain is made up of several areas. For example, the cerebrum is used to think and plan actions. In the cerebellum, movements are initialized and coordinated. The brain stem is responsible for various unconscious tasks such as breathing. The brain stem passes into the spinal cord.

Various disorders can cause one’s brain, or certain parts of one’s brain, to get smaller. The brain may also no longer be able to work properly in these areas. Depending on which areas of the brain are affected, one may have a range of symptoms. For example, one’s thinking and behavior may change. You may also have trouble speaking. One may no longer be able to remember the right word for something, for example. It is also possible to have other symptoms.

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

Note

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.

Source

Provided by the non-profit organization “Was hab’ ich?” gemeinnützige GmbH on behalf of the Federal Ministry of Health (BMG).