C7A
⚠ Non-billable
Malignant neuroendocrine tumors
ICD-10-CM · FY2026 · Neoplasms
Code
C7A
System
ICD-10-CM
Billable
No — use specific code
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.
Official coding notes
From CMS's ICD-10-CM Tabular List.
Excludes2 — not included here, but may code together
- malignant pancreatic islet cell tumors (C25.4)
- Merkel cell carcinoma (C4A.-)
Use additional code
- code to identify any associated endocrine syndrome, such as:
- carcinoid syndrome (E34.00)
Code also
- any associated multiple endocrine neoplasia [MEN] syndromes (E31.2-)
Frequently asked questions
What is ICD-10 code C7A?
ICD-10-CM code C7A represents Malignant neuroendocrine tumors. It is a non-billable header code requiring a more specific subcategory in the Neoplasms chapter, effective October 1, 2025 – September 30, 2026.
Is C7A billable?
No. C7A is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is C7A in?
C7A belongs to the Neoplasms chapter (C00–D49) of ICD-10-CM.
Related codes in the C7A category
C7A.0
Malignant carcinoid tumors
Non-billable
C7A.1
Malignant poorly differentiated neuroendocrine tumors
Billable
C7A.8
Other malignant neuroendocrine tumors
Billable
C7A.00
Malignant carcinoid tumor of unspecified site
Billable
C7A.01
Malignant carcinoid tumors of the small intestine
Non-billable
C7A.02
Malignant carcinoid tumors of the appendix, large intestine, and rectum
Non-billable
C7A.09
Malignant carcinoid tumors of other sites
Non-billable
C7A.010
Malignant carcinoid tumor of the duodenum
Billable
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