ICD-10 Diagnosis Code Z90.1

Acquired absence of breast and nipple

Diagnosis Code Z90.1

ICD-10: Z90.1
Short Description: Acquired absence of breast and nipple
Long Description: Acquired absence of breast and nipple
This is the 2018 version of the ICD-10-CM diagnosis code Z90.1

Not Valid for Submission
The code Z90.1 is a "header" and not valid for submission for HIPAA-covered transactions.

Code Classification
  • Factors influencing health status and contact with health services (Z00–Z99)
    • Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99)
      • Acquired absence of organs, not elsewhere classified (Z90)

Information for Patients


A mastectomy is surgery to remove a breast or part of a breast. It is usually done to treat breast cancer. Types of breast surgery include

  • Total (simple) mastectomy - removal of breast tissue and nipple
  • Modified radical mastectomy - removal of the breast, most of the lymph nodes under the arm, and often the lining over the chest muscles
  • Lumpectomy - surgery to remove the tumor and a small amount of normal tissue around it

Which surgery you have depends on the stage of cancer, size of the tumor, size of the breast, and whether the lymph nodes are involved. Many women have breast reconstruction to rebuild the breast after a mastectomy.

Sometimes mastectomy is done to prevent breast cancer. Only high-risk patients have this type of surgery.

NIH: National Cancer Institute

  • Breast lump removal (Medical Encyclopedia)
  • Mastectomy (Medical Encyclopedia)
  • Mastectomy - discharge (Medical Encyclopedia)

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