C50.521
✓ Billable
Malignant neoplasm of lower-outer quadrant of right male breast
ICD-10-CM · FY2026 · Neoplasms
Code
C50.521
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Neoplasms
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code C50.521?
ICD-10-CM code C50.521 represents Malignant neoplasm of lower-outer quadrant of right male breast. It is a billable diagnosis code in the Neoplasms chapter, effective October 1, 2025 – September 30, 2026.
Is C50.521 billable?
Yes. C50.521 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is C50.521 in?
C50.521 belongs to the Neoplasms chapter (C00–D49) of ICD-10-CM.
Related codes in the C50 category
C50
Malignant neoplasm of breast
Non-billable
C50.0
Malignant neoplasm of nipple and areola
Non-billable
C50.1
Malignant neoplasm of central portion of breast
Non-billable
C50.2
Malignant neoplasm of upper-inner quadrant of breast
Non-billable
C50.3
Malignant neoplasm of lower-inner quadrant of breast
Non-billable
C50.4
Malignant neoplasm of upper-outer quadrant of breast
Non-billable
C50.5
Malignant neoplasm of lower-outer quadrant of breast
Non-billable
C50.6
Malignant neoplasm of axillary tail of breast
Non-billable
Search all 98,186 ICD-10-CM codes instantly
Search ICDwise →