C45: Mesothelioma
Codes under C45 (Mesothelioma). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| C45.0 | Mesothelioma of pleura | ✓ |
| C45.0 | Mesothelioma of pleura | ✓ |
| C45.1 | Mesothelioma of peritoneum | ✓ |
| C45.1 | Mesothelioma of peritoneum | ✓ |
| C45.2 | Mesothelioma of pericardium | ✓ |
| C45.2 | Mesothelioma of pericardium | ✓ |
| C45.7 | Mesothelioma of other sites | ✓ |
| C45.7 | Mesothelioma of other sites | ✓ |
| C45.9 | Mesothelioma, unspecified | ✓ |
| C45.9 | Mesothelioma, unspecified | ✓ |
Frequently asked questions
What is ICD-10-CM code C45?
C45 is an ICD-10-CM category covering Mesothelioma. It contains 10 more specific diagnosis codes, 10 of which are billable.
Is C45 a billable code?
No — C45 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example C45.0 — Mesothelioma of pleura). 10 of the 10 codes under C45 are billable.
What codes fall under C45?
C45 includes C45.0, C45.0, C45.1, C45.1, C45.2, plus 5 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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