ICD-10 Diagnosis Code Z90.10

Acquired absence of unspecified breast and nipple

Diagnosis Code Z90.10

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

Valid for Submission
The code Z90.10 is 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 Medical Professionals

Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

Present on Admission (POA) Additional informationCallout TooltipPresent on Admission
The Present on Admission (POA) indicator is used for diagnosis codes included in claims involving inpatient admissions to general acute care hospitals. POA indicators must be reported to CMS on each claim to facilitate the grouping of diagnoses codes into the proper Diagnostic Related Groups (DRG). CMS publishes a listing of specific diagnosis codes that are exempt from the POA reporting requirement.

The code Z90.10 is exempt from POA reporting.

  • Absence of breast
  • Burn of breast
  • Deep full thickness burn of the breast, with loss of body part
  • Deep third degree burn of breast
  • Deformity of breast
  • History of mastectomy
  • History of prophylactic mastectomy
  • Post-mastectomy breast deformity
  • Post-mastectomy chronic pain syndrome
  • Third degree burn of breast
  • Unilateral extended simple mastectomy
  • Unilateral mastectomy
  • Unilateral modified radical mastectomy
  • Unilateral radical mastectomy
  • Unilateral simple mastectomy

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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