2C50.Z

ICD-11 MMS 2026-01

Malignant neoplasms of retroperitoneum, unspecified

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

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

Sibling codes

  • 2C50.0 – Cystic, mucinous or serous carcinoma of retroperitoneum
  • 2C50.Y – Other specified malignant neoplasms of retroperitoneum

Foundation entity

Malignant neoplasms of retroperitoneum – http://id.who.int/icd/entity/1731312506

Allowed postcoordination axes

Part of: 2C50: Malignant neoplasms of retroperitoneum › 02: Neoplasms