Benign carcinoid tumor of the ileum

This code signifies a non-cancerous, slow-growing neuroendocrine tumor originating in the ileum, the final section of the small intestine. These tumors arise from enterochromaffin cells and typically produce serotonin and other vasoactive substances. While benign, they have the potential for local invasion or, rarely, metastasis.

Apply this code when documentation clearly identifies a benign carcinoid tumor specifically located in the ileum. This diagnosis is often made following biopsy or surgical resection of a mass found during endoscopy, imaging, or laparotomy. Supporting documentation should confirm the benign nature and precise anatomical site.

• Ensure the documentation specifies "benign" and "ileum" to avoid miscoding.
• Distinguish from malignant carcinoid tumors (C7A.0xx series) or carcinoid tumors of unspecified behavior (D3A.09).
• Code any associated carcinoid syndrome (E34.0) separately, if present and documented.