2022 ICD-10-CM Code C50.121

Malignant neoplasm of central portion of right male breast

Version 2021

Valid for Submission

ICD-10:C50.121
Short Description:Malignant neoplasm of central portion of right male breast
Long Description:Malignant neoplasm of central portion of right male breast

Code Classification

  • Neoplasms (C00–D48)
    • Malignant neoplasms of breast (C50)
      • Malignant neoplasm of breast (C50)

C50.121 is a billable diagnosis code used to specify a medical diagnosis of malignant neoplasm of central portion of right male breast. The code C50.121 is valid during the fiscal year 2022 from October 01, 2021 through September 30, 2022 for the submission of HIPAA-covered transactions.

The code C50.121 is applicable to male patients only. It is clinically and virtually impossible to use this code on a non-male patient.

Code Edits

The Medicare Code Editor (MCE) detects and reports errors in the coding of claims data. The following ICD-10 Code Edits are applicable to this code:

Convert C50.121 to ICD-9 Code

The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code C50.121 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.

Information for Patients


Male Breast Cancer

Although breast cancer is much more common in women, men can get it too. It happens most often to men between the ages of 60 and 70.

Breast lumps usually aren't cancer. However, most men with breast cancer have lumps. Other breast symptoms can include

Risk factors for male breast cancer include exposure to radiation, a family history of breast cancer, and having high estrogen levels, which can happen with diseases like cirrhosis or Klinefelter syndrome.

Treatment for male breast cancer is usually a mastectomy, which is surgery to remove the breast. Other treatments include radiation, chemotherapy and/or hormone therapy.

NIH: National Cancer Institute


[Learn More in MedlinePlus]

Code History

  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)