title: Development of structured ICD-10 and its application to computer-assisted ICD coding.
abstract: This paper presents: (1) a framework of formal representation of ICD10, which functions as a bridge between ontological information and natural language expressions; and (2) a methodology to use formally described ICD10 for computer-assisted ICD coding. First, we analyzed and structurized the meanings of categories in 15 chapters of ICD10. Then we expanded the structured ICD10 (S-ICD10) by adding subordinate concepts and labels derived from Japanese Standard Disease Names. The information model to describe formal representation was refined repeatedly. The resultant model includes 74 types of semantic links. We also developed an ICD coding module based on S-ICD10 and a 'Coding Principle,' which achieved high accuracy (>70%) for four chapters. These results not only demonstrate the basic feasibility of our coding framework but might also inform the development of the information model for formal description framework in the ICD11 revision.
authors.affiliation: Graduate School of Medicine, The University of Tokyo, Japan. ken@hcc.h.u-tokyo.ac.jp
authors.forename: Takeshi
authors.initials: T
authors.lastname: Imai
authors.forename: Masayuki
authors.initials: M
authors.lastname: Kajino
authors.forename: Megumi
authors.initials: M
authors.lastname: Sato
authors.forename: Kazuhiko
authors.initials: K
authors.lastname: Ohe
mesh_terms: D059019:Clinical Coding / Q000379:methods*; D004194:Disease; D038801:International Classification of Diseases; D007564:Japan; D012660:Semantics; D009626:Terminology as Topic; D018875:Vocabulary, Controlled