C7A: Malignant neuroendocrine tumors
Codes under C7A (Malignant neuroendocrine tumors). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| C7A.0 | Malignant carcinoid tumors | — |
| C7A.0 | Malignant carcinoid tumors | — |
| C7A.00 | Malignant carcinoid tumor of unspecified site | ✓ |
| C7A.00 | Malignant carcinoid tumor of unspecified site | ✓ |
| C7A.01 | Malignant carcinoid tumors of the small intestine | — |
| C7A.01 | Malignant carcinoid tumors of the small intestine | — |
| C7A.1 | Malignant poorly differentiated neuroendocrine tumors | ✓ |
| C7A.1 | Malignant poorly differentiated neuroendocrine tumors | ✓ |
| C7A.02 | Malignant carcinoid tumors of the appendix, large intestine, and rectum | — |
| C7A.02 | Malignant carcinoid tumors of the appendix, large intestine, and rectum | — |
| C7A.8 | Other malignant neuroendocrine tumors | ✓ |
| C7A.8 | Other malignant neuroendocrine tumors | ✓ |
| C7A.09 | Malignant carcinoid tumors of other sites | — |
| C7A.09 | Malignant carcinoid tumors of other sites | — |
| C7A.010 | Malignant carcinoid tumor of the duodenum | ✓ |
| C7A.010 | Malignant carcinoid tumor of the duodenum | ✓ |
| C7A.011 | Malignant carcinoid tumor of the jejunum | ✓ |
| C7A.011 | Malignant carcinoid tumor of the jejunum | ✓ |
| C7A.012 | Malignant carcinoid tumor of the ileum | ✓ |
| C7A.012 | Malignant carcinoid tumor of the ileum | ✓ |
| C7A.019 | Malignant carcinoid tumor of the small intestine, unspecified portion | ✓ |
| C7A.019 | Malignant carcinoid tumor of the small intestine, unspecified portion | ✓ |
| C7A.020 | Malignant carcinoid tumor of the appendix | ✓ |
| C7A.020 | Malignant carcinoid tumor of the appendix | ✓ |
| C7A.021 | Malignant carcinoid tumor of the cecum | ✓ |
| C7A.021 | Malignant carcinoid tumor of the cecum | ✓ |
| C7A.022 | Malignant carcinoid tumor of the ascending colon | ✓ |
| C7A.022 | Malignant carcinoid tumor of the ascending colon | ✓ |
| C7A.023 | Malignant carcinoid tumor of the transverse colon | ✓ |
| C7A.023 | Malignant carcinoid tumor of the transverse colon | ✓ |
| C7A.024 | Malignant carcinoid tumor of the descending colon | ✓ |
| C7A.024 | Malignant carcinoid tumor of the descending colon | ✓ |
| C7A.025 | Malignant carcinoid tumor of the sigmoid colon | ✓ |
| C7A.025 | Malignant carcinoid tumor of the sigmoid colon | ✓ |
| C7A.026 | Malignant carcinoid tumor of the rectum | ✓ |
| C7A.026 | Malignant carcinoid tumor of the rectum | ✓ |
| C7A.029 | Malignant carcinoid tumor of the large intestine, unspecified portion | ✓ |
| C7A.029 | Malignant carcinoid tumor of the large intestine, unspecified portion | ✓ |
| C7A.090 | Malignant carcinoid tumor of the bronchus and lung | ✓ |
| C7A.090 | Malignant carcinoid tumor of the bronchus and lung | ✓ |
| C7A.091 | Malignant carcinoid tumor of the thymus | ✓ |
| C7A.091 | Malignant carcinoid tumor of the thymus | ✓ |
| C7A.092 | Malignant carcinoid tumor of the stomach | ✓ |
| C7A.092 | Malignant carcinoid tumor of the stomach | ✓ |
| C7A.093 | Malignant carcinoid tumor of the kidney | ✓ |
| C7A.093 | Malignant carcinoid tumor of the kidney | ✓ |
| C7A.094 | Malignant carcinoid tumor of the foregut, unspecified | ✓ |
| C7A.094 | Malignant carcinoid tumor of the foregut, unspecified | ✓ |
| C7A.095 | Malignant carcinoid tumor of the midgut, unspecified | ✓ |
| C7A.095 | Malignant carcinoid tumor of the midgut, unspecified | ✓ |
| C7A.096 | Malignant carcinoid tumor of the hindgut, unspecified | ✓ |
| C7A.096 | Malignant carcinoid tumor of the hindgut, unspecified | ✓ |
| C7A.098 | Malignant carcinoid tumors of other sites | ✓ |
| C7A.098 | Malignant carcinoid tumors of other sites | ✓ |
Frequently asked questions
What is ICD-10-CM code C7A?
C7A is an ICD-10-CM category covering Malignant neuroendocrine tumors. It contains 54 more specific diagnosis codes, 46 of which are billable.
Is C7A a billable code?
No — C7A is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example C7A.0 — Malignant carcinoid tumors). 46 of the 54 codes under C7A are billable.
What codes fall under C7A?
C7A includes C7A.0, C7A.0, C7A.00, C7A.00, C7A.01, plus 49 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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