C50 ICD-10-CM Code: Malignant neoplasm of breast
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Official description
C50Malignant neoplasm of breast
ICD-10-CM diagnosis code · United States clinical modification
Where C50 sits
- 1
Chapter 2
Neoplasms (C00-D49)
- 2
Section
Malignant neoplasms of breast (C50)
- 3
Category C50
Malignant neoplasm of breast
- 4
Code C50
Malignant neoplasm of breast
Codes under C50
C50 is a non-billable category. Choose the child code that best matches the documented diagnosis.
C50.0Malignant neoplasm of nipple and areolaC50.1Malignant neoplasm of central portion of breastC50.2Malignant neoplasm of upper-inner quadrant of breastC50.3Malignant neoplasm of lower-inner quadrant of breastC50.4Malignant neoplasm of upper-outer quadrant of breastC50.5Malignant neoplasm of lower-outer quadrant of breastC50.6Malignant neoplasm of axillary tail of breastC50.8Malignant neoplasm of overlapping sites of breastC50.9Malignant neoplasm of breast of unspecified siteC50.AMalignant inflammatory neoplasm of breastNotes for this code
Inclusion terms
No inclusion terms are listed for C50.
Code first
No “code first” instruction is listed for C50.
Use additional code
- code to identify estrogen, and other hormones and factors receptor status (Z17.-)
Excludes1
Conditions that should not be reported together with this code.
- skin of breast (C44.501, C44.511, C44.521, C44.591)
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for C50.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code C50 mean?
C50 is the FY 2027 U.S. ICD-10-CM code for “Malignant neoplasm of breast.”
Is C50 a billable or specific ICD-10-CM code?
No. C50 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is C50 located in ICD-10-CM?
C50 is listed in Chapter 2, Neoplasms (C00-D49), within Malignant neoplasms of breast (C50) (C50–C50), under category C50, Malignant neoplasm of breast.
What coding notes are listed for C50?
No inclusion terms are listed for C50 in this reference record. No code-first instruction is listed. Additional-code instructions: code to identify estrogen, and other hormones and factors receptor status (Z17.-). Excludes1 notes: skin of breast (C44.501, C44.511, C44.521, C44.591). No Excludes2 note is listed.