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C50.21

Non-billable

Malignant neoplasm of upper-inner quadrant of breast, female

C50.21 is the ICD-10-CM code for Malignant neoplasm of upper-inner quadrant of breast, female. It is a non-billable category code — use a more specific child code such as C50.211 for billing.

Status
Header (non-billable)
Chapter
C00-D49
Parent
C50.2
Subcodes
3
Edition
FY2026

C00-D49 Neoplasms

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code C50.21?
C50.21 is the ICD-10-CM code for "Malignant neoplasm of upper-inner quadrant of breast, female". It falls under C00-D49 Neoplasms.
Is C50.21 a billable code?
No — C50.21 is a non-billable header code. Use a more specific child code (such as C50.211) for billing.
What are the subcodes of C50.21?
C50.21 has 3 more specific child codes, including C50.211, C50.212, C50.219.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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