C50.411 – Malignant neoplasm of upper-outer quadrant of right female breast

The ICD-10-CM code C50.411 is used to diagnose a patient with a malignant neoplasm of the upper-outer quadrant of the right female breast. Learn more about this code using this guide.

By Karina Jimenea on Aug 8, 2025.

Fact Checked by Ericka Pingol.

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C50.411 diagnosis code: Malignant neoplasm of upper-outer quadrant of right female breast

C50.411 is a code included in the International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM), and it designates malignant neoplasm of upper-outer quadrant of right female breast.”

The designated usage of this specific ICD-10 code is exclusively intended for female patients who have been diagnosed with a malignant tumor located in the upper region of their right breast. Using the correct diagnosis codes ensures compliance with the Centers for Medicare & Medicaid Services guidelines and helps ensure accurate claim processing, avoids delays or denials, and supports proper reporting.

Is the C50.411 billable?

Yes, the C50.411 code is billable and can be used to designate a patient for reimbursement purposes.

C50.411 clinical information

A malignant neoplasm means that a tumor is cancerous. In the context of this ICD-10 code, malignant neoplasm refers to a cancerous tumor in the upper-outer quadrant of a female patient's right breast.

In short, the female patient has breast cancer or they are at risk of developing it, given the presence of a malignant tumor.

There are several ways to treat breast cancer. These include the following:

Removal of the whole breast (mastectomy) or just the part where the cancer is and some tissue (lumpectomy)
Chemotherapy
Radiation therapy
Hormone therapy
Targeted therapy
Immunotherapy

The treatment will be based on the stage of the cancer, with earlier stages often requiring less aggressive therapies and later stages needing more intensive approaches. Doctors will consider the cancer’s stage to determine the most effective combination of treatments, such as surgery, chemotherapy, radiation, or targeted therapies.

C50.411 synonyms include:

Malignant neoplasm of breast upper outer quadrant
Malignant neoplasm of upper-outer quadrant of female breast
Neoplasm of upper outer quadrant of female breast
Primary malignant neoplasm of breast upper outer quadrant
Primary malignant neoplasm of upper outer quadrant of female breast
Infiltrating ductal carcinoma of upper-outer quadrant of right female breast

Other ICD-10 codes commonly used for malignant neoplasms in the female breast:

C50.412: Malignant neoplasm of upper-outer quadrant of left female breast
C50.011: Malignant neoplasm of nipple and areola, right female breast
C50.012: Malignant neoplasm of nipple and areola, left female breast
C50.111: Malignant neoplasm of central portion of right female breast
C50.112: Malignant neoplasm of central portion of left female breast
C50.211: Malignant neoplasm of upper-inner quadrant of right female breast
C50.212: Malignant neoplasm of upper-inner quadrant of left female breast
C50.311: Malignant neoplasm of lower-inner quadrant of right female breast
C50.312: Malignant neoplasm of lower-inner quadrant of left female breast
C50.511: Malignant neoplasm of lower-outer quadrant of right female breast
C50.512: Malignant neoplasm of lower-outer quadrant of left female breast

Commonly asked questions

Diagnosis code C50.411 refers to a malignant neoplasm of the upper-outer quadrant of the right female breast. This code is part of the C50 category, which classifies malignant tumors of the breast.

Diagnosis code C50 is the primary code classification for malignant neoplasm of the breast. It identifies breast cancer but is not used for reimbursement purposes. The code C50 is further categorized into specific subcodes that indicate the exact location of the tumor within the breast.

The ICD-10 code C50.9 refers to a malignant neoplasm of the breast of an unspecified site. C50.9 is a non-billable category code that requires more specific codes, such as C50.91 for females or C50.92 for males, to be used for billing purposes.

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