N62: Hypertrophy of breast

You have an enlarged breast.

The breast is made up of fatty tissue, connective tissue and the mammary gland. Milk is produced in the mammary gland after pregnancy so that the child can be fed.

The breast can become enlarged for a number of different reasons, for example as a result of medication. Changes may also occur to the breast when sex hormone levels in the body increase or decrease. The level of sex hormones can fluctuate during puberty or as a result of a number of different conditions.

Enlarged breasts can sometimes cause symptoms. You may experience pain in the back or shoulder. It is also possible that you have no symptoms at all.

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.


Provided by the non-profit organization “Was hab’ ich?” gemeinnützige GmbH on behalf of the Federal Ministry of Health (BMG).