New code ยท FY2026
Not billable: this is a header. Use one of the more specific codes below.
- New code, effective October 1, 2025 (FY2026).
Code breakdown
C50.A
- C50CategoryMalignant neoplasm of breast
- ACharacter 4Malignant inflammatory neoplasm of breast
Coding notes
Inclusion terms
- Inflammatory breast cancer (IBC)
Includes (from C50)
- connective tissue of breast
- Paget's disease of breast
- Paget's disease of nipple
Excludes1 (from C50)
- skin of breast (C44.501, C44.511, C44.521, C44.591)
Use additional code (from C50)
- code to identify estrogen, and other hormones and factors receptor status (Z17.-)
Codes under C50.A
- C50.A0 Malignant inflammatory neoplasm of unspecified breast
- C50.A1 Malignant inflammatory neoplasm of right breast
- C50.A2 Malignant inflammatory neoplasm of left breast
Check this code
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ICD-10-CM codes and descriptions are from the CMS and NCHS code files. Coverage is from the CMS Medicare Coverage Database billing and coding articles.