N83.0: Follicular cyst of ovary

You have a fluid-filled sac (cyst) in your ovary.

The ovaries are part of the female genitals. There are two ovaries, one on each side. The ovaries sit low down in the abdomen. Egg cells mature in the ovaries. The egg cells can later develop into a child. The ovaries also produce various messenger substances.

The egg cells mature inside follicles. At ovulation the follicles burst and the egg cell travels down the fallopian tube into the uterus. In your case this follicle has not burst. It has actually grown in size. The follicle has turned into a fluid-filled sac (cyst) inside the ovary.

In most cases these cysts do not cause any problems and clear up without treatment after a while. If the cysts become very large, you may have abdominal pains, for example. The cysts may also affect your periods.

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


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.


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