2024 ICD-10-CM Diagnosis Code C50.912

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Malignant neoplasm of unspecified site of left female breast

  • C50.912 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2024 edition of ICD-10-CM C50.912 became effective on October 1, 2023.
  • This is the American ICD-10-CM version of C50.912 – other international versions of ICD-10 C50.912 may differ.

ICD-10-CM Coding Rules

  • C50.912 is applicable to female patients.

The following code(s) above C50.912 contain annotation back-references

 that may be applicable to C50.912:

  • C00-D49  Neoplasms
  • C50  Malignant neoplasm of breast

Approximate Synonyms

  • Angiosarcoma of bilateral female breasts
  • Angiosarcoma of left female breast
  • Bilateral female breast sarcoma
  • Cancer, female breast, left breast
  • Female breast angiosarcoma, bilateral breasts
  • Female breast angiosarcoma, left breast
  • Female breast cancer, bilateral breasts
  • Female breast infiltrating ductal carcinoma, bilateral breasts
  • Female breast infiltrating ductal carcinoma, l breast
  • Female breast infiltrating lobular carcinoma, bilateral breasts
  • Female breast infiltrating lobular carcinoma, l breast
  • Infiltrating duct carcinoma of left female breast
  • Infiltrating ductal carcinoma of bilateral female breasts
  • Infiltrating ductal carcinoma of left female breast
  • Infiltrating lobular carcinoma of bilateral female breasts
  • Infiltrating lobular carcinoma of left female breast
  • Left female breast sarcoma
  • Malignant phyllodes tumor of bilateral female breasts
  • Malignant phyllodes tumor of left female breast
  • Phyllodes tumor, malignant, female bilat breasts
  • Phyllodes tumor, malignant, female left breast
  • Primary malignant neoplasm of bilateral female breasts
  • Primary malignant neoplasm of female left breast
  • Recurrent female breast cancer, bilateral breasts
  • Recurrent female breast cancer, l breast
  • Recurrent primary malignant neoplasm of bilateral female breasts
  • Recurrent primary malignant neoplasm of left female breast
  • Sarcoma of bilateral female breasts
  • Sarcoma of left female breast

ICD-10-CM C50.912 is grouped within Diagnostic Related Group(s) (MS-DRG v41.0):

  • 582 Mastectomy for malignancy with cc/mcc
  • 583 Mastectomy for malignancy without cc/mcc
  • 597 Malignant breast disorders with mcc
  • 598 Malignant breast disorders with cc
  • 599 Malignant breast disorders without cc/mcc

Convert C50.912 to ICD-9-CMCode History

  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change
  • 2024 (effective 10/1/2023): No change