Malignant neoplasms of retroperitoneum

Description

A primary or metastatic malignant neoplasm [primary malignant neoplasm spreading elsewhere] involving the retroperitoneum. The vast majority of cases are carcinomas, lymphomas, or sarcomas.

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.

Excludes

• 2C51 – Malignant neoplasms of peritoneum
• 2C52 – Malignant neoplasms of omentum
• 2D90 – Malignant neoplasm metastasis in retroperitoneum
• http://id.who.int/icd/entity/1965082709 – Malignant mesenchymal neoplasms

Exclusions from above levels

• http://id.who.int/icd/entity/879154182 – Neoplasms of central nervous system or related structures
• http://id.who.int/icd/entity/944754984 – Neoplasms of haematopoietic or lymphoid tissues