C50 is the ICD-10 code for Malignant neoplasm of breast. It is a three-character category divided into 9 subcodes; use the subcode whenever the record supports that level of detail. It belongs to the block C50–C50 (Malignant neoplasm of breast) in Chapter II, Neoplasms.
- Code type
- Category (3 characters)
- Chapter
- II · C00–D48
- Classification
- WHO ICD-10, 2019 version
What C50 includes
Conditions and terms that are coded here.
- connective tissue of breast
What C50 excludes
Conditions that look similar but belong under another code.
Subcodes of C50
- C50.0Malignant neoplasm: Nipple and areola
- C50.1Malignant neoplasm: Central portion of breast
- C50.2Malignant neoplasm: Upper-inner quadrant of breast
- C50.3Malignant neoplasm: Lower-inner quadrant of breast
- C50.4Malignant neoplasm: Upper-outer quadrant of breast
- C50.5Malignant neoplasm: Lower-outer quadrant of breast
- C50.6Malignant neoplasm: Axillary tail of breast
- C50.8Malignant neoplasm: Overlapping lesion of breast
- C50.9Malignant neoplasm: Breast, unspecified
C50 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
DC50Brystkræft
C50Rintasyöpä
C50Bösartige Neubildung der Brustdrüse [Mamma]
C50Tumeur maligne du sein
C50maligne neoplasmata van mamma
Listed through more specific codes:
- C50.A0Malignant inflammatory neoplasm of unspecified breast
- C50.A1Malignant inflammatory neoplasm of right breast
- C50.A2Malignant inflammatory neoplasm of left breast
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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