Malignant neoplasm of lesser curvature of stomach, unsp

This code signifies a cancerous growth originating in the lesser curvature of the stomach, where the specific histological type or exact location within the lesser curvature is not documented. It indicates a primary malignant tumor affecting this particular anatomical region of the stomach.

Apply this code when documentation confirms a primary gastric malignancy located on the lesser curvature, but further specificity regarding the tumor's nature (e.g., adenocarcinoma, lymphoma) is absent. This code is appropriate when the physician's notes or pathology report clearly state "malignant neoplasm of lesser curvature of stomach" without additional detail.

• Avoid using this code if a more specific anatomical subsite within the lesser curvature (e.g., cardia, fundus) or histological type is documented.
• Always review pathology reports for definitive tumor type and behavior to ensure the most specific code is selected.
• Sequence this code as the primary diagnosis when the gastric malignancy is the reason for the encounter or treatment.