2024 ICD-10-CM Diagnosis Code C50.312

by

Malignant neoplasm of lower-inner quadrant of left female breast

  • C50.312 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • Short description: Malig neoplasm of lower-inner quadrant of left female breast
  • The 2024 edition of ICD-10-CM C50.312 became effective on October 1, 2023.
  • This is the American ICD-10-CM version of C50.312 – other international versions of ICD-10 C50.312 may differ.

ICD-10-CM Coding Rules

  • C50.312 is applicable to female patients.

The following code(s) above C50.312 contain annotation back-references

 that may be applicable to C50.312:

  • C00-D49  Neoplasms
  • C50  Malignant neoplasm of breast

Approximate Synonyms

  • Cancer female breast, left lower-inner quadrant
  • Female breast infiltrating ductal carcinoma, l lower-i
  • Female breast infiltrating lobular carcinoma, l lower-
  • Infiltrating ductal carcinoma of lower-inner quadrant of left female breast
  • Infiltrating lobular carcinoma of lower-inner quadrant of left female breast
  • Primary malignant neoplasm of left lower inner quadrant of female breast

ICD-10-CM C50.312 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 C50.312 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