2D90

ICD-11 MMS 2026-01

Malignant neoplasm metastasis in retroperitoneum

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.

Index terms

  • Malignant neoplasm metastasis in retroperitoneum
  • metastasis to retroperitoneum
  • retroperitoneal metastasis
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  • retroperitoneum metastasis
  • secondary malignant neoplasm of retroperitoneum

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

Sibling codes

  • 2D91 – Malignant neoplasm metastasis in peritoneum

Foundation entity

Malignant neoplasm metastasis in retroperitoneum – http://id.who.int/icd/entity/181975334

Allowed postcoordination axes

Part of: 02: Neoplasms