ICD-10-CM Code N60.91

Unspecified benign mammary dysplasia of right breast

Version 2020 Billable Code

Valid for Submission

N60.91 is a billable code used to specify a medical diagnosis of unspecified benign mammary dysplasia of right breast. The code is valid for the year 2020 for the submission of HIPAA-covered transactions.

ICD-10:N60.91
Short Description:Unspecified benign mammary dysplasia of right breast
Long Description:Unspecified benign mammary dysplasia of right breast

Diagnostic Related Groups

The ICD-10 code N60.91 is grouped in the following groups for version MS-DRG V37.0 What are Diagnostic Related Groups?
The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC).
applicable from 10/01/2020 through 09/30/2020.

  • 597 - MALIGNANT BREAST DISORDERS WITH MCC
  • 598 - MALIGNANT BREAST DISORDERS WITH CC
  • 599 - MALIGNANT BREAST DISORDERS WITHOUT CC/MCC
  • 600 - NON-MALIGNANT BREAST DISORDERS WITH CC/MCC
  • 601 - NON-MALIGNANT BREAST DISORDERS WITHOUT CC/MCC

Convert N60.91 to ICD-9

  • 610.9 - Benign mamm dysplas NOS (Approximate Flag)

Code Classification

  • Diseases of the genitourinary system (N00–N99)
    • Disorders of breast (N60-N65)
      • Benign mammary dysplasia (N60)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients


Breast Diseases

Most women experience breast changes at some time. Your age, hormone levels, and medicines you take may cause lumps, bumps, and discharges (fluids that are not breast milk).

If you have a breast lump, pain, discharge or skin irritation, see your health care provider. Minor and serious breast problems have similar symptoms. Although many women fear cancer, most breast problems are not cancer.

Some common breast changes are

  • Fibrocystic breast changes - lumpiness, thickening and swelling, often just before a woman's period
  • Cysts - fluid-filled lumps
  • Fibroadenomas - solid, round, rubbery lumps that move easily when pushed, occurring most in younger women
  • Intraductal papillomas - growths similar to warts near the nipple
  • Blocked milk ducts
  • Milk production when a woman is not breastfeeding

NIH: National Cancer Institute


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