C37 ICD-10-CM Code: Malignant neoplasm of thymus
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
C37Malignant neoplasm of thymus
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where C37 sits
- 1
Chapter 2
Neoplasms (C00-D49)
- 2
Section
Malignant neoplasms of respiratory and intrathoracic organs (C30-C39)
- 3
Category C37
Malignant neoplasm of thymus
- 4
Code C37
Malignant neoplasm of thymus
Documentation details
Notes for this code
Inclusion terms
No inclusion terms are listed for C37.
Code first
No “code first” instruction is listed for C37.
Use additional code
No “use additional code” instruction is listed for C37.
Excludes1
Conditions that should not be reported together with this code.
- malignant carcinoid tumor of the thymus (C7A.091)
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for C37.
Transparency
Source and release
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Review the CDC/NCHS ICD-10-CM sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code C37 mean?
C37 is the FY 2027 U.S. ICD-10-CM code for “Malignant neoplasm of thymus.”
Is C37 a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, C37 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.
Where is C37 located in ICD-10-CM?
C37 is listed in Chapter 2, Neoplasms (C00-D49), within Malignant neoplasms of respiratory and intrathoracic organs (C30-C39) (C30–C39), under category C37, Malignant neoplasm of thymus.
What coding notes are listed for C37?
No inclusion terms are listed for C37 in this reference record. No code-first instruction is listed. Excludes1 notes: malignant carcinoid tumor of the thymus (C7A.091). No Excludes2 note is listed.
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