C45.9 – Mesothelioma, unspecified
ICD-10-CM 2027 diagnosis code · Malignant neoplasms of mesothelial and soft tissue
ICD-10-CM code
C45.9
- Code
C45.9(claims format:C459)- Description
- Mesothelioma, unspecified
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 2. Neoplasms (C00-D49)
- Block
- C45-C49 Malignant neoplasms of mesothelial and soft tissue
- Parent codes
- C45
Index terms for C45.9
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in C45
Frequently asked questions
What is ICD-10 code C45.9?
C45.9 is the ICD-10-CM code for mesothelioma, unspecified, in the block C45-C49 (Malignant neoplasms of mesothelial and soft tissue).
Is C45.9 a billable code?
Yes. C45.9 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does C45.9 belong to?
It belongs to category C45 – Mesothelioma.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.