2D4Y

ICD-11 MMS 2026-01

Other specified malignant neoplasms of unspecified primary sites

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

  • 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

  • 2D40 – Adenocarcinoma of unspecified site
  • 2D41 – Unspecified carcinoma of unspecified site
  • 2D42 – Malignant neoplasms of ill-defined sites
  • 2D43 – Malignant neoplasms of independent, multiple primary sites
  • 2D44 – Malignant neoplasm, primary site unknown, so stated
  • 2D4Z – Unspecified malignant neoplasms of unspecified sites

Foundation entity

Malignant neoplasms of ill-defined or unspecified primary sites – http://id.who.int/icd/entity/1594217552

Allowed postcoordination axes

Part of: 02: Neoplasms