2026 ICD-10-CM Diagnosis Code C80Malignant neoplasm without specification of site
C80 is a non-billable ICD-10-CM category code for malignant neoplasm without specification of site, so it cannot be submitted on claims. Use a more specific code from this category instead, such as C80.0, C80.1, and C80.2.
Code Identity
Code Classification
Specific Coding for Malignant neoplasm without specification of siteOverview
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Type 1 Excludes
- malignant carcinoid tumor of unspecified site C7A.00
- malignant neoplasm of specified multiple sites- code to each site
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
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Code HistoryHistory
Questions About C80Overview
Is C80 (Malignant neoplasm without specification of site) a billable code?
No. This is a category header that groups the codes for malignant neoplasm without specification of site, and headers cannot be submitted on claims. Claims for malignant neoplasm without specification of site need a more specific code from this category, such as C80.0, C80.1, and C80.2.
