C50.91 Malignant neoplasm of breast of unspecified site, female
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The ICD-10-CM code for Malignant neoplasm of breast of unspecified site, female is C50.91 (FY2026). It is a non-billable category code — select a more specific code below for claims.
Classification
- Chapter
- 2: Neoplasms (C00-D49)
- Section
- C50: Malignant neoplasms of breast (C50)
- Category C50
- 86 codes (57 billable)
- FY2026 Status
- Stable since FY2024
Also Known As
ICD-10-CM Alphabetic Index entries that lead to C50.91:
- Cancer › breast
- Carcinoma (malignant) › lipid-rich (female)
- Carcinoma (malignant) › ductular, infiltrating › unspecified site (female)
- Adenocarcinoma › inflammatory › unspecified site (female)
- Adenocarcinoma › lobular › unspecified site (female)
- Adenocarcinoma › infiltrating duct › unspecified site (female)
- Carcinoma (malignant) › lobular (infiltrating) › unspecified site (female)
- Carcinoma (malignant) › inflammatory › unspecified site (female)
Official Coding Guidelines
Tx of primary site (TOC entry)a. Admission/Encounter for treatment of primary site ............................................................. 33
Tx of secondary site (TOC entry)b. Admission/Encounter for treatment of secondary site .......................................................... 33
Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026
References
Cite This Page
Reference C50.91 with the canonical source and edition:
C50.91 — Malignant neoplasm of breast of unspecified site, female. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/C50.91
Canonical URL: https://icd10codingpro.com/codes/C50.91