Q99.0: Chimera 46,XX/46,XY

In your body there are both female and male sex 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.

In part of your body cells there is one X and one Y chromosome. In another part of your body cells there are 2 X chromosomes.

The reason for this lies in fertilization. A child usually comes into being when an egg is fertilized by a sperm. However, a child may develop from two fertilized eggs. One of the two fertilized eggs contains male sex hormones. The other of the two eggs contains female sex hormones. The child therefore has cells with both male sex chromosomes and cells with female sex chromosomes from the start.

Due to the different sex chromosomes, the sex organs may then develop differently than usual. Both testes and ovaries may be present. The external sex organs may look different than for most other people. During puberty, male and female sex characteristics can develop. You may not be able to have children during your lifetime.

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).