ICD-10 codes for Breast Cancer
Breast Cancer is coded primarily under C50, C50.911, C50.912 in the ICD-10-CM (Clinical Modification) classification. Top-level categories include C50 (Malignant neoplasm of breast); D05 (Carcinoma in situ of breast). The 2025 ICD-10-CM code set includes 99 codes related to breast cancer, of which 66 are billable (specific enough to appear on a medical claim).
Malignant neoplasm of the breast is coded under C50 in ICD-10-CM, with subcodes by anatomical site within the breast (nipple, central portion, upper outer quadrant, etc.) and laterality. D05 covers carcinoma in situ of breast. Z85.3 is personal history of malignant neoplasm of breast.
Total Codes
99
Billable Codes
66
Categories
2
SNOMED CT Concepts
25+
Top 12 Relevant ICD-10 Codes
The codes most commonly assigned to breast cancer, ranked by primary-match status, billable status, and specificity. Tap a code to see its full ICD-10 detail page.
C50.911Malignant neoplasm of unsp site of right female breast
C50.912Malignant neoplasm of unspecified site of left female breast
C50Malignant neoplasm of breast
D05Carcinoma in situ of breast
D05.00Lobular carcinoma in situ of unspecified breast
D05.01Lobular carcinoma in situ of right breast
D05.02Lobular carcinoma in situ of left breast
D05.10Intraductal carcinoma in situ of unspecified breast
D05.11Intraductal carcinoma in situ of right breast
D05.12Intraductal carcinoma in situ of left breast
D05.80Oth type of carcinoma in situ of unspecified breast
D05.81Other specified type of carcinoma in situ of right breast
Primary Code Categories
These are the top-level ICD-10-CM categories for breast cancer. Click any code to see all specific subcodes within that group.
Billable / Specific Codes (66)
Specific ICD-10-CM codes that can be reported on medical claims for breast cancer.
C50.011Malignant neoplasm of nipple and areola, right female breast
C50.012Malignant neoplasm of nipple and areola, left female breast
C50.019Malignant neoplasm of nipple and areola, unsp female breast
C50.021Malignant neoplasm of nipple and areola, right male breast
C50.022Malignant neoplasm of nipple and areola, left male breast
C50.029Malignant neoplasm of nipple and areola, unsp male breast
C50.111Malignant neoplasm of central portion of right female breast
C50.112Malignant neoplasm of central portion of left female breast
C50.119Malignant neoplasm of central portion of unsp female breast
C50.121Malignant neoplasm of central portion of right male breast
C50.122Malignant neoplasm of central portion of left male breast
C50.129Malignant neoplasm of central portion of unsp male breast
C50.211Malig neoplm of upper-inner quadrant of right female breast
C50.212Malig neoplasm of upper-inner quadrant of left female breast
C50.219Malig neoplasm of upper-inner quadrant of unsp female breast
C50.221Malig neoplasm of upper-inner quadrant of right male breast
C50.222Malig neoplasm of upper-inner quadrant of left male breast
C50.229Malig neoplasm of upper-inner quadrant of unsp male breast
C50.311Malig neoplm of lower-inner quadrant of right female breast
C50.312Malig neoplasm of lower-inner quadrant of left female breast
C50.319Malig neoplasm of lower-inner quadrant of unsp female breast
C50.321Malig neoplasm of lower-inner quadrant of right male breast
C50.322Malig neoplasm of lower-inner quadrant of left male breast
C50.329Malig neoplasm of lower-inner quadrant of unsp male breast
C50.411Malig neoplm of upper-outer quadrant of right female breast
C50.412Malig neoplasm of upper-outer quadrant of left female breast
C50.419Malig neoplasm of upper-outer quadrant of unsp female breast
C50.421Malig neoplasm of upper-outer quadrant of right male breast
C50.422Malig neoplasm of upper-outer quadrant of left male breast
C50.429Malig neoplasm of upper-outer quadrant of unsp male breast
C50.511Malig neoplm of lower-outer quadrant of right female breast
C50.512Malig neoplasm of lower-outer quadrant of left female breast
C50.519Malig neoplasm of lower-outer quadrant of unsp female breast
C50.521Malig neoplasm of lower-outer quadrant of right male breast
C50.522Malig neoplasm of lower-outer quadrant of left male breast
C50.529Malig neoplasm of lower-outer quadrant of unsp male breast
C50.611Malignant neoplasm of axillary tail of right female breast
C50.612Malignant neoplasm of axillary tail of left female breast
C50.619Malignant neoplasm of axillary tail of unsp female breast
C50.621Malignant neoplasm of axillary tail of right male breast
C50.622Malignant neoplasm of axillary tail of left male breast
C50.629Malignant neoplasm of axillary tail of unsp male breast
C50.811Malignant neoplasm of ovrlp sites of right female breast
C50.812Malignant neoplasm of ovrlp sites of left female breast
C50.819Malignant neoplasm of ovrlp sites of unsp female breast
C50.821Malignant neoplasm of overlapping sites of right male breast
C50.822Malignant neoplasm of overlapping sites of left male breast
C50.829Malignant neoplasm of overlapping sites of unsp male breast
C50.911Malignant neoplasm of unsp site of right female breast
C50.912Malignant neoplasm of unspecified site of left female breast
...and 16 more specific codes. Search all codes.
Cross-Mappings to Other Standards
ICD-10-CM codes for breast cancer link to several adjacent terminologies. These mappings are precomputed from official sources (NLM RxNav, UMLS Metathesaurus, SNOMED CT International) and served via AutoICD's reference and translate APIs.
SNOMED CT
25+ concepts mapped from this code group. Concept IDs include 1268908007, 1306295006, 1306308001, 1306309009, ....
Browse SNOMED CT directoryUMLS Metathesaurus
25+ CUIs indexed. Sample: C0006142, C0030185, C1704323, C4759665, ....
Browse UMLS directoryICD-11
ICD-11 (WHO 2022) classifies many of these conditions under different chapter and stem-code structures. Use the converter to see specific ICD-10 to ICD-11 mappings.
Open ICD-10 to ICD-11 converterFrequently Asked Questions
What is the ICD-10 code for breast cancer?
The primary ICD-10-CM codes for breast cancer are C50, C50.911, C50.912. Across all sub-categories, 99 codes are grouped under breast cancer, with 66 marked as billable (specific enough for a medical claim).
How many ICD-10 codes are there for breast cancer?
There are 99 ICD-10-CM codes related to breast cancer. Of these, 66 are billable specific codes and 33 are non-billable header categories that organize the specific codes underneath them. Header codes cannot be reported on a claim by themselves.
Is there a billable ICD-10 code for breast cancer?
Yes. 66 of the 99 ICD-10-CM codes for breast cancer are billable. Common examples include C50.011 (Malignant neoplasm of nipple and areola, right female breast); C50.012 (Malignant neoplasm of nipple and areola, left female breast); C50.019 (Malignant neoplasm of nipple and areola, unsp female breast). Code to the highest level of specificity supported by the documentation.
Which breast cancer ICD-10 code should I use for billing?
The most commonly used billable codes for breast cancer include: C50.011 (Malignant neoplasm of nipple and areola, right female breast); C50.012 (Malignant neoplasm of nipple and areola, left female breast); C50.019 (Malignant neoplasm of nipple and areola, unsp female breast). The correct code depends on the documented clinical presentation, including any complications, episode (acute / chronic), and laterality where applicable. Always code to the highest level of specificity supported by the clinical documentation.
Is C50 a billable ICD-10 code?
No, C50 (Malignant neoplasm of breast) is a non-billable header code. You need to use a more specific child code for billing purposes.
What are the SNOMED CT concepts for breast cancer?
The ICD-10 codes for breast cancer map to at least 25 SNOMED CT concepts. Examples of SNOMED CT concept IDs in this group include 1268908007, 1306295006, 1306308001, 1306309009, 1306310004. SNOMED CT is a clinical terminology used in electronic health records; AutoICD's coding API returns SNOMED CT IDs alongside each ICD-10 code via the include_snomed=true flag.
What UMLS Concept Unique Identifiers (CUIs) cover breast cancer?
The ICD-10 codes for breast cancer are linked to at least 25 UMLS CUIs in the National Library of Medicine's Metathesaurus. Sample CUIs include C0006142, C0030185, C1704323, C4759665, C0496806. UMLS CUIs unify the same concept across SNOMED CT, ICD-10, ICD-11, RxNorm, MeSH, and dozens of other source vocabularies.
What are other names for breast cancer in ICD-10?
Breast Cancer may also be referred to as: breast cancer, malignant breast neoplasm, ductal carcinoma, lobular carcinoma, DCIS. The same ICD-10-CM codes apply regardless of which term appears in the clinical documentation. Synonyms are surfaced by AutoICD's NER pass and mapped to the canonical ICD-10 family above.
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