2C53

ICD-11 MMS 2026-01

Malignant neoplasm involving overlapping sites of retroperitoneum, peritoneum or omentum

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

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

Child codes

2C53.0 – Adenocarcinoma involving overlapping sites of retroperitoneum, peritoneum or omentum
2C53.1 – Mesothelioma involving overlapping sites of retroperitoneum, peritoneum or omentum
2C53.Y – Other specified malignant neoplasm involving overlapping sites of retroperitoneum, peritoneum or omentum
2C53.Z – Malignant neoplasm involving overlapping sites of retroperitoneum, peritoneum or omentum, unspecified

Sibling codes

2C50 – Malignant neoplasms of retroperitoneum
2C51 – Malignant neoplasms of peritoneum
2C52 – Malignant neoplasms of omentum

Foundation entity

Malignant neoplasm involving overlapping sites of retroperitoneum, peritoneum or omentum – http://id.who.int/icd/entity/131965197

Allowed postcoordination axes

Part of: 02: Neoplasms