title: Comparing ICD-10 external cause codes for pedal cyclists with self-reported crash details.
abstract: Accurate coding of injury event information is critical in developing targeted injury prevention strategies. However, little is known about the validity of the most universally used coding system, the International Classification of Diseases (ICD-10), in characterising crash counterparts in pedal cycling events. This study aimed to determine the agreement between hospital-coded ICD-10-AM (Australian modification) external cause codes with self-reported crash characteristics in a sample of pedal cyclists admitted to hospital following bicycle crashes. Interview responses from 141 injured cyclists were mapped to a single ICD-10-AM external cause code for comparison with ICD-10-AM external cause codes from hospital administrative data. The percentage of agreement was 77.3% with a κ value of 0.68 (95% CI 0.61 to 0.77), indicating substantial agreement. Nevertheless, studies reliant on ICD-10 codes from administrative data should consider the 23% level of disagreement when characterising crash counterparts in cycling crashes.
authors.affiliation: Department of Epidemiology and Preventive Medicine, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Victoria, Australia.
authors.forename: Ben
authors.identifier: 0000-0003-3262-5956
authors.initials: B
authors.lastname: Beck
authors.affiliation: Department of Epidemiology and Preventive Medicine, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Victoria, Australia.
authors.forename: Christina L
authors.initials: CL
authors.lastname: Ekegren
authors.affiliation: Department of Epidemiology and Preventive Medicine, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Victoria, Australia.|Emergency and Trauma Centre, The Alfred, Melbourne, Victoria, Australia.
authors.forename: Peter
authors.initials: P
authors.lastname: Cameron
authors.affiliation: Melbourne School of Design/Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Victoria, Australia.
authors.forename: Mark
authors.initials: M
authors.lastname: Stevenson
authors.affiliation: Department of General Surgery, The Royal Melbourne Hospital, Melbourne, Victoria, Australia.|Department of Surgery, The University of Melbourne, Melbourne, Victoria, Australia.
authors.forename: Rodney
authors.initials: R
authors.lastname: Judson
authors.affiliation: Department of Surgery, The University of Melbourne, Melbourne, Victoria, Australia.|Department of Orthopaedic Surgery, The Royal Melbourne Hospital, Melbourne, Victoria, Australia.
authors.forename: Andrew
authors.initials: A
authors.lastname: Bucknill
authors.affiliation: Department of Epidemiology and Preventive Medicine, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Victoria, Australia.|Department of Orthopaedic Surgery, The Alfred, Melbourne, Victoria, Australia.
authors.forename: Elton
authors.initials: E
authors.lastname: Edwards
authors.affiliation: Department of Epidemiology and Preventive Medicine, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Victoria, Australia.|Farr Institute, Swansea University Medical School, Swansea University, UK.
authors.forename: Belinda
authors.initials: B
authors.lastname: Gabbe
mesh_terms: D000063:Accidents, Traffic / Q000706:statistics & numerical data*; D001315:Australia; D001642:Bicycling / Q000293:injuries*; D059019:Clinical Coding / Q000592:standards*; D000068598:Data Accuracy; D016208:Databases, Factual; D006801:Humans; D038801:International Classification of Diseases; D011446:Prospective Studies; D057566:Self Report; D014193:Trauma Centers / Q000706:statistics & numerical data