C7A
C7A: Malignant neuroendocrine tumors
Non-billable headerICD-10-CM
C7A is a non-billable header ICD-10-CM code for malignant neuroendocrine tumors. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes2: not included here, but may coexist
The excluded condition is not part of this code, but a patient can have both. You may code both.
- malignant pancreatic islet cell tumors (C25.4)
- Merkel cell carcinoma (C4A.-)
Use additional code
Add a secondary code to capture the detail described below.
- code to identify any associated endocrine syndrome, such as:
- carcinoid syndrome (E34.00)
Code also
Both codes may be needed to describe the encounter fully. Sequencing depends on the reason for the visit.
- any associated multiple endocrine neoplasia [MEN] syndromes (E31.2-)
Other codes that can never be billed with C7A
Their own Excludes1 notes name this code, so the conflict is not listed above.
- C17Malignant neoplasm of small intestine
- C18Malignant neoplasm of colon
- C19Malignant neoplasm of rectosigmoid junction
- C20Malignant neoplasm of rectum
- C34Malignant neoplasm of bronchus and lung
- C37Malignant neoplasm of thymus
- C64Malignant neoplasm of kidney, except renal pelvis
- C75Malignant neoplasm of other endocrine glands and related structures
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Code history
Unchanged in every release from FY2024 to FY2027.
Code to one of these instead C7A
3 child codes. Green means billable.