N91.0: Primary amenorrhoea
You have not yet had a menstrual bleeding.
The uterus consists mainly of a layer of muscle and a lining of mucous membrane (mucosal lining). The mucosal lining receives a good supply of blood and steadily increases in size. Unless an egg is fertilized, a large part of the mucosal lining is shed and replaced. The menstrual bleeding starts when the mucosal lining is shed. The uterus is connected to the vagina. During your menstrual bleeding the mucosal lining is discharged through the vagina to the outside of the body along with some blood.
You have not yet had a menstrual bleeding. That can have various causes. Menstrual bleedings may not occur, for example, if the genital organs are not properly developed or are missing. Another reason they may not occur is a change in the levels of messenger substances in the body. Menstrual bleedings are controlled by various messenger substances.
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).