C45.2 — Mesothelioma of pericardium
Is C45.2 billable?
Yes — C45.2 is billable for FY2027. C45.2 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. C45.2 may be submitted for encounters from October 1, 2026 through September 30, 2027.
C45.2 at a glance
| Code | C45.2 |
|---|---|
| Description | Mesothelioma of pericardium |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does C45.2 group to?
C45.2 sits in MDC 05 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 314Other Circulatory System Diagnoses with MCCmedical
- 315Other Circulatory System Diagnoses with CCmedical
- 316Other Circulatory System Diagnoses without CC/MCCmedical
As a secondary diagnosis, C45.2 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is C45.2 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to C45.2. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Mesothelioma › site classification › pericardium (malignant)
Excludes1 — never code together
The conditions below can never be reported together with C45.2 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- other malignant neoplasm of pericardium (C38.0)
How long has C45.2 existed?
C45.2 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
Which codes are confused with C45.2?
ICD-10-CM declares these codes mutually exclusive with C45.2 — exactly one of each pair can be correct for a given encounter.