Malignant neoplasm of fundus of stomach

This code signifies a cancerous tumor originating in the fundus, the dome-shaped upper part of the stomach. This malignancy involves uncontrolled cell growth within the gastric fundus, potentially invading surrounding tissues.

Apply this code when documentation clearly states a primary malignant neoplasm located specifically in the fundus of the stomach. This diagnosis is typically confirmed through biopsy and imaging studies.

• Differentiate from other stomach regions; specificity of "fundus" is key.
• Do not use for benign neoplasms or malignancies of unspecified stomach sites.
• Consider additional codes for metastatic disease or associated complications.