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ICD-10 diagnosis code

C45.9 Mesothelioma, unspecified

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C45.9 is the ICD-10 code for Mesothelioma, unspecified. It is a four-character subcategory of C45 (Mesothelioma), the most specific level in the WHO edition. It belongs to the block C45–C49 (Malignant neoplasms of mesothelial and soft tissue) in Chapter II, Neoplasms.

Code type
Subcategory (4 characters)
Chapter
II · C00–D48
Classification
WHO ICD-10, 2019 version

C45.9 in national editions

Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.

SwedenICD-10-SE

C45.9Ospecificerad lokalisation av mesoteliom

NorwayICD-10-NO

C45.9Mesoteliom med uspesifisert lokalisasjon

DenmarkICD-10-DK

DC459Malignt mesoteliom UNS

GermanyICD-10-GM

C45.9Mesotheliom, nicht näher bezeichnet

FranceICD-10-FR

C45.9Mésothéliome, sans précision

NetherlandsICD-10-NL

C45.9mesothelioom, niet-gespecificeerd

United StatesICD-10-CM

C45.9Mesothelioma, unspecified

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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