2B5F.3

ICD-11 MMS 2026-01

Sarcoma, not elsewhere classified, primary site unknown

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

  • Sarcoma, not elsewhere classified, primary site unknown
  • Sarcoma NEC
  • Sarcoma NOS

Exclusions from above levels

  • 2A01.1 – Mesenchymal tumour of meninges
  • 2A02.1 – Tumours of cranial or paraspinal nerves
  • http://id.who.int/icd/entity/879154182 – Neoplasms of central nervous system or related structures
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  • http://id.who.int/icd/entity/944754984 – Neoplasms of haematopoietic or lymphoid tissues

Sibling codes

  • 2B5F.0 – Sarcoma, not elsewhere classified of uterus
  • 2B5F.1 – Sarcoma, not elsewhere classified of retroperitoneum or peritoneum
  • 2B5F.2 – Sarcoma, not elsewhere classified of other specified sites

Foundation entity

Sarcoma, not elsewhere classified, primary site unknown – http://id.who.int/icd/entity/1961520767

Allowed postcoordination axes

Part of: 2B5F: Sarcoma, not elsewhere classified, primary site › 02: Neoplasms