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C45 Mesothelioma

ICD-10-CM category C45 sits in Chapter 2 (Neoplasms, C00-D49). It contains 5 billable codes for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.

Billable codes in C45

CodeDescription
C45.0Mesothelioma of pleura
C45.1Mesothelioma of peritoneum
C45.2Mesothelioma of pericardium
C45.7Mesothelioma of other sites
C45.9Mesothelioma, unspecified

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