C37
✓ Billable
Malignant neoplasm of thymus
ICD-10-CM · FY2026 · Neoplasms
Code
C37
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Neoplasms
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code C37?
ICD-10-CM code C37 represents Malignant neoplasm of thymus. It is a billable diagnosis code in the Neoplasms chapter, effective October 1, 2025 – September 30, 2026.
Is C37 billable?
Yes. C37 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is C37 in?
C37 belongs to the Neoplasms chapter (C00–D49) of ICD-10-CM.
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