C7A — Malignant neuroendocrine tumors

Not billable

Is C7A billable?

No — C7A is a non-billable header code. C7A groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 23 billable codes beneath C7A.

Billable codes under this header

C7A at a glance

Code	C7A
Description	Malignant neuroendocrine tumors
Billable	No — header code
Code set	ICD-10-CM FY2027
Valid for encounters	October 1, 2026 – September 30, 2027

Use additional code

Report an additional code alongside C7A to fully describe the condition. C7A is sequenced first.

code to identify any associated endocrine syndrome, such as:
carcinoid syndrome (E34.00)

Excludes2 — not included here

The conditions below are not part of C7A, but a patient may have both at the same time. When documentation supports it, C7A and the excluded code may both be reported.

malignant pancreatic islet cell tumors (C25.4)
Merkel cell carcinoma (C4A.-)

Code also

Two codes may be needed to describe the condition fully. Whether C7A is sequenced first depends on the reason for the encounter.

any associated multiple endocrine neoplasia [MEN] syndromes (E31.2-)

What codes fall under C7A? (3)

How long has C7A existed?

C7A has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.