C80 is the ICD-10 code for Malignant neoplasm, without specification of site. It is a three-character category divided into 2 subcodes; use the subcode whenever the record supports that level of detail. It belongs to the block C76–C80 (Malignant neoplasms of ill-defined, secondary and unspecified sites) in Chapter II, Neoplasms.
- Code type
- Category (3 characters)
- Chapter
- II · C00–D48
- Classification
- WHO ICD-10, 2019 version
Subcodes of C80
C80 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
DC80Ikke nærmere specificeret kræft (ukendt primærtumor)
C80Sijainniltaan määrittämätön syöpä
C80Bösartige Neubildung ohne Angabe der Lokalisation
C80Tumeur maligne de siège non précisé
C80maligne neoplasma zonder gespecificeerde lokalisatie
Listed through more specific codes:
- C80.1Malignant (primary) neoplasm, unspecified
- C80.2Malignant neoplasm associated with transplanted organ
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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