Malignant neoplasm of body of stomach

This code identifies a primary cancerous tumor originating in the main central portion of the stomach, distinct from the cardia, fundus, pylorus, or antrum. It signifies a malignant growth that has developed from the stomach's own tissues, rather than a metastasis from another site.

Apply this code when documentation explicitly states a primary malignant neoplasm located in the "body" of the stomach. This diagnosis is typically confirmed by biopsy and pathology reports. Use for initial encounters, active treatment, or surveillance of this specific gastric cancer.

• Differentiate from other stomach subsites (e.g., C16.0 for cardia, C16.3 for pylorus) based on precise anatomical documentation.
• Do not use for secondary malignant neoplasms of the stomach; instead, use C78.89.
• Ensure the pathology report or physician's notes clearly specify "body of stomach" to support this granular code.