C50.6
ICD-10Non-billable categoryMalignant neoplasm of axillary tail of breast
Official ICD-10-CM descriptor (FY2026)
Malignant neoplasm of axillary tail of breast
C50.6 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
ICD-10-CM FY2026 defines 2 codes beneath C50.6. See the ICD-10-CM index for what this site publishes.
Related codes in C50
- C50.0Malignant neoplasm of nipple and areolacategory
- C50.1Malignant neoplasm of central portion of breastcategory
- C50.2Malignant neoplasm of upper-inner quadrant of breastcategory
- C50.3Malignant neoplasm of lower-inner quadrant of breastcategory
- C50.4Malignant neoplasm of upper-outer quadrant of breastcategory
- C50.5Malignant neoplasm of lower-outer quadrant of breastcategory
- C50.8Malignant neoplasm of overlapping sites of breastcategory
- C50.9Malignant neoplasm of breast of unspecified sitecategory
- C50.AMalignant inflammatory neoplasm of breastcategory
Where this code sits
- Chapter
- 2. Neoplasms (C00-D49)
- Parent code
- C50
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.