ICD-Code Q04.5: Megalencephaly
The brain is larger than in other people of the same age and sex.
The brain is located inside the head. It receives, processes and stores sensory impressions. The brain controls movements and various physical functions.
A larger brain is the result of the brain growing more than normal. This can occur during development in the womb or after birth. Brain size can be hereditary. A large brain may not cause any symptoms. In some cases, however, it is associated with symptoms or other defects.
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
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
The explanation of the ICD code was provided by the non-profit organization “Was hab’ ich?” gemeinnützige GmbH on behalf of the Federal Ministry of Health (BMG).