title: What's in a class? Lessons learnt from the ICD - SNOMED CT harmonisation.
abstract: The upcoming ICD-11 will be harmonized with SNOMED CT via a common ontological layer (CO). We provide evidence for our hypothesis that this cannot be appropriately done by simple ontology alignment, due to diverging ontological commitment between the two terminology systems. Whereas the common ontology describes clinical situations, ICD-11 linearization codes are best to be interpreted as diagnostic statements. For the binding between ICD codes and classes from the ontological layer, a query-based approach is favoured.
authors.affiliation: WHO - IHTSDO Joint Advisory Group (JAG) http://apps.who.int/classifications/whoihtsdo.
authors.forename: Stefan
authors.initials: S
authors.lastname: Schulz
authors.affiliation: WHO - IHTSDO Joint Advisory Group (JAG) http://apps.who.int/classifications/whoihtsdo.
authors.forename: Jean-M
authors.initials: JM
authors.lastname: Rodrigues
authors.affiliation: WHO - IHTSDO Joint Advisory Group (JAG) http://apps.who.int/classifications/whoihtsdo.
authors.forename: Alan
authors.initials: A
authors.lastname: Rector
authors.affiliation: WHO - IHTSDO Joint Advisory Group (JAG) http://apps.who.int/classifications/whoihtsdo.
authors.forename: Kent
authors.initials: K
authors.lastname: Spackman
authors.affiliation: WHO - IHTSDO Joint Advisory Group (JAG) http://apps.who.int/classifications/whoihtsdo.
authors.forename: James
authors.initials: J
authors.lastname: Campbell
authors.affiliation: WHO - IHTSDO Joint Advisory Group (JAG) http://apps.who.int/classifications/whoihtsdo.
authors.forename: Bedirhan
authors.initials: B
authors.lastname: Ustün
authors.affiliation: WHO - IHTSDO Joint Advisory Group (JAG) http://apps.who.int/classifications/whoihtsdo.
authors.forename: Christopher G
authors.initials: CG
authors.lastname: Chute
authors.affiliation: WHO - IHTSDO Joint Advisory Group (JAG) http://apps.who.int/classifications/whoihtsdo.
authors.forename: Harold
authors.initials: H
authors.lastname: Solbrig
authors.affiliation: WHO - IHTSDO Joint Advisory Group (JAG) http://apps.who.int/classifications/whoihtsdo.
authors.forename: Vincenzo
authors.initials: V
authors.lastname: Della Mea
authors.affiliation: WHO - IHTSDO Joint Advisory Group (JAG) http://apps.who.int/classifications/whoihtsdo.
authors.forename: Jane
authors.initials: J
authors.lastname: Millar
authors.affiliation: WHO - IHTSDO Joint Advisory Group (JAG) http://apps.who.int/classifications/whoihtsdo.
authors.forename: Kristina
authors.initials: K
authors.lastname: Brand Persson
mesh_terms: D001185:Artificial Intelligence; D016247:Information Storage and Retrieval / Q000592:standards*; D038801:International Classification of Diseases / Q000592:standards*; D009323:Natural Language Processing; D017410:Practice Guidelines as Topic; D012660:Semantics; D039061:Systematized Nomenclature of Medicine; D014175:Translating; D018875:Vocabulary, Controlled