Q98.7: Male with sex chromosome mosaicism
You have a congenital disorder, which means you were born with it. This disorder causes you to have an unusual number of sex chromosomes in some cells of your body.
When beginning its development, every single cell in the body contains a complete blueprint of the body. This blueprint consists of genetic information. The genetic information is encrypted in the chromosomes. Every human cell normally contains 23 chromosome pairs, i.e. a total of 46 chromosomes.
The X chromosome and the Y chromosome determine a person’s biological gender. Men normally have one X chromosome and one Y chromosome. Women normally have 2 X chromosomes.
There are cells in your body that have different numbers of X chromosomes and Y chromosomes. You may have body cells with 2 Y chromosomes, for example. Other body cells may, for example, only have 1 Y chromosome and 2 X chromosomes or 3 Y chromosomes at the same time. This is called Mosaic Down syndrome, or mosaicism.
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
Source
Provided by the non-profit organization “Was hab’ ich?” gemeinnützige GmbH on behalf of the Federal Ministry of Health (BMG).