Malignant neoplasm without specification of site (C80) ICD-10-CM
The C80 code range covers malignant neoplasm without specification of site with 4 ICD-10-CM diagnosis codes. 3 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Type 1 Excludes
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.
- malignant carcinoid tumor of unspecified site C7A.00
- malignant neoplasm of specified multiple sites- code to each site
Codes in the C80 Range 4 codes · 3 billable
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the C80 range.
Disseminated Malignant Neoplasm
Cancer that is spread throughout the body, a metastatic phenomenon.
Transplant-Related Malignant Neoplasm
A malignant neoplasm that arises in a patient with a history of organ transplantation.
About the C80 Code Range
These codes describe cancer without a specified site or cancer associated with a transplanted organ.
C80.0 describes disseminated, or widespread, cancer that is otherwise unspecified. C80.1 describes primary cancer that is unspecified. C80.2 describes cancer associated with a transplanted organ.
Questions About This Page
How many billable codes are in the C80 range?
Of the 4 codes in this range, 3 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the C80 range classify?
The range classifies malignant neoplasm without specification of site. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
