Malignant neoplasm of jejunum

This diagnosis code signifies the presence of a cancerous tumor originating in the jejunum, the middle section of the small intestine. These malignant growths can arise from various cell types within the jejunal wall, leading to symptoms such as abdominal pain, weight loss, and gastrointestinal bleeding. The specific type and stage of the neoplasm are typically determined through biopsy and imaging studies.

Use this code when documentation clearly indicates a primary malignant neoplasm located in the jejunum. This applies to confirmed diagnoses of adenocarcinoma, lymphoma, sarcoma, or other primary malignant tumors of this specific small bowel segment. Supporting documentation includes pathology reports, operative notes, and physician progress notes detailing the diagnosis.

• Ensure the documentation specifies "jejunum" and not a more general small intestine location (e.g., C17.8 for overlapping lesions).
• Always sequence this code as the primary diagnosis when it is the reason for the encounter, unless a complication of the neoplasm is the primary reason.
• Review the pathology report carefully to confirm malignancy and the specific anatomical site within the small intestine.