Adenocarcinoma of stomach

Description

An adenocarcinoma arising from the stomach glandular epithelium. Gastric adenocarcinoma is primarily a disease of older individuals. It most commonly develops after a long period of atrophic gastritis and is strongly associated with Helicobacter pylori infection. The lack of early symptoms often delays the diagnosis of gastric cancer. The majority of patients present with advanced tumours which have poor rates of curability. Microscopically, two important histologic types of gastric adenocarcinoma are recognised: the intestinal and diffuse type. The overall prognosis of gastric adenocarcinomas is poor, even in patients who receive a curative resection.

Coding note from above levels

For use of this category, reference should be made to the mortality coding rules and guidelines in the Reference Guide.

Exclusions from above levels

• 2D8Y – Malignant neoplasm metastasis in stomach
• http://id.who.int/icd/entity/1965082709 – Malignant mesenchymal neoplasms
• http://id.who.int/icd/entity/111033337 – Malignant neoplasm metastasis in digestive system