2B80.2

ICD-11 MMS 2026-01

Malignant neoplasms of small intestine, site 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.

Index terms

  • Malignant neoplasms of small intestine, site unspecified

Exclusions from above levels

  • http://id.who.int/icd/entity/1965082709 – Malignant mesenchymal neoplasms
  • http://id.who.int/icd/entity/111033337 – Malignant neoplasm metastasis in digestive system
  • http://id.who.int/icd/entity/794095161 – Malignant neoplasms of lip, oral cavity or pharynx
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  • 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

  • 2B80.20 – Adenocarcinoma of small intestine, site unspecified
  • 2B80.21 – Neuroendocrine neoplasms of small intestine, site unspecified
  • 2B80.2Y – Other specified malignant neoplasms of small intestine, site unspecified

Sibling codes

  • 2B80.0 – Malignant neoplasms of duodenum
  • 2B80.1 – Malignant neoplasms of jejunum or ileum
  • 2B80.Y – Other specified malignant neoplasms of small intestine
  • 2B80.Z – Malignant neoplasms of small intestine, unspecified

Foundation entity

Malignant neoplasms of small intestine, site unspecified – http://id.who.int/icd/entity/1975721108

Allowed postcoordination axes

Part of: 2B80: Malignant neoplasms of small intestine › 02: Neoplasms