C50.A0
✓ BillableMalignant inflammatory neoplasm of unspecified breast
Neoplasms (C00-D49)
❌ Excludes1
inheritedRules inherited from parent codes in the hierarchy.
- • skin of breast (C44.501, C44.511, C44.521, C44.591)
📋 Code Instructions
inherited- • code to identify estrogen, and other hormones and factors receptor status (Z17.-)
Clinical Description
ICD-10-CM code C50.A0 represents malignant inflammatory neoplasm of unspecified breast. This code falls under the Neoplasms (C00-D49) classification. It is a billable/specific code valid for HIPAA-covered transactions as of October 1, 2025 (FY2026). This code can be used to indicate a diagnosis for reimbursement purposes on insurance claims.
This is a 6-character code at the 5th level of specificity. This is the most specific code available in this subcategory. Coders should note that C50.A0 has 1 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.
Frequently Asked Questions
What is ICD-10 code C50.A0?
ICD-10-CM code C50.A0 is "Malignant inflammatory neoplasm of unspecified breast". It belongs to the category: Neoplasms (C00-D49).
Is C50.A0 a billable ICD-10 code?
Yes, C50.A0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
What codes are excluded with C50.A0?
C50.A0 has 1 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.
Related Codes in C50.A
Other codes in the same category that may be relevant for differential coding:
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Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)