C50 is a non-billable/non-specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Malignant neoplasm of breast.
Includes
Connective tissue of breast
Paget's disease of breast
Paget's disease of nipple
Use additional code
Code to identify estrogen, and other hormones and factors receptor status (Z17.-)
Type 1 excludes
Codes
C50.0
Malignant neoplasm of nipple and areola
C50.1
Malignant neoplasm of central portion of breast
C50.2
Malignant neoplasm of upper-inner quadrant of breast
C50.3
Malignant neoplasm of lower-inner quadrant of breast
C50.4
Malignant neoplasm of upper-outer quadrant of breast
C50.5
Malignant neoplasm of lower-outer quadrant of breast
C50.6
Malignant neoplasm of axillary tail of breast
C50.8
Malignant neoplasm of overlapping sites of breast
C50.9
Malignant neoplasm of breast of unspecified site
Versions
2025
Code changed
Use additional code
code to identify estrogen receptor status (Z17.0, Z17.1)
- code to identify estrogen, and other hormones and factors receptor status (Z17.-)
2024
No changes
2023
No changes
2022
No changes
2021
No changes
2020
No changes
2019
No changes
2018
No changes
2017
No changes
2016
New code