ICD-11 code : 2B5B;
Preferred Label : Gastrointestinal stromal tumour, primary site;
ICD-11 definition : This is the most common mesenchymal tumour that arises in the gastrointestinal tract.
It is generally immunohistochemically positive for CD117 (KIT), phenotypically paralleling
Cajal-cell differentiation, and most examples contain KIT- or PDGFRA- activating mutations.
It is most frequent in the stomach and to a lesser degree in the small intestine.
The prognosis depends on the tumor size and the mitotic activity.;
ICD-11 synonym : gastrointestinal stromal tumour; GIST - [gastrointestinal stromal tumour];
ICD-11 acronym : GIST;
ICD-11 "other" category code : 2B5B.Y;
ICD-11 "unspecified" category code : 2B5B.Z;
Origin ID : 819644414;
Automatic exact mappings (from CISMeF team)
Validated automatic mappings to NTBT
This is the most common mesenchymal tumour that arises in the gastrointestinal tract.
It is generally immunohistochemically positive for CD117 (KIT), phenotypically paralleling
Cajal-cell differentiation, and most examples contain KIT- or PDGFRA- activating mutations.
It is most frequent in the stomach and to a lesser degree in the small intestine.
The prognosis depends on the tumor size and the mitotic activity.