Malignant neoplasm of small intestine, unspecified

This code signifies the presence of a cancerous tumor originating in any part of the small intestine (duodenum, jejunum, or ileum) when the specific sub-site within the small intestine is not documented. It indicates a primary malignancy rather than a metastatic lesion from another organ.

Use this code when the medical record clearly states a diagnosis of small intestine cancer, but the physician documentation does not specify the exact anatomical location (e.g., "malignant neoplasm of small bowel" without further detail). It is appropriate when pathology confirms malignancy but the precise segment of the small intestine is unknown or unstated.

• Avoid using this code if the specific sub-site (e.g., duodenum, jejunum, ileum) is documented; instead, use the more specific code.
• Ensure documentation confirms a primary malignancy of the small intestine, not a metastatic lesion.
• Query the provider for a more specific site if possible, as unspecified codes can impact data quality and reimbursement.