ICD-10-CM 2027 diagnosis code
C50.61Malignant neoplasm of axillary tail of breast, female
C50.61 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About C50.61
C50.61 is the ICD-10-CM diagnosis code for malignant neoplasm of axillary tail of breast, female. It belongs to category C50 (malignant neoplasm of breast), block C50 (malignant neoplasms of breast) and chapter 2 (neoplasms). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.
Within C50.6 (malignant neoplasm of axillary tail of breast), C50.61 is specifically for malignant neoplasm of axillary tail of breast, female. Related codes cover male (C50.62).
To report this condition, pick the subcode that matches the documentation: C50.611 (breast), C50.612 (breast) and C50.619 (breast).
Use an additional code to identify estrogen, and other hormones and factors receptor status (Z17.-).
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Specific codes under C50.61
Notes that apply from higher levels
Instructions written at a parent level also apply to C50.61.
Broader instructions also apply from Chapter 2: Neoplasms.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about C50.61
Is C50.61 billable?
- No. C50.61 is a header code. Report one of its more specific subcodes instead.