Related Experiment Video
Updated: Oct 17, 2025

Point of Care Transcranial Color-Coded Duplex Ultrasound of the Middle Cerebral Artery
Published on: August 9, 2024
Validity of ICD-10 Codes for Cerebral Venous Thrombosis Depends on Clinical Context
Lily W Zhou1,2, Amy Y X Yu3, William Hall4
1Division of Neurology and Vancouver Stroke Program, University of British Columbia, Vancouver, Canada.
Abstract:
We examined the accuracy of International Classification of Disease 10th iteration (ICD-10) diagnosis codes within Canadian administrative data in identifying cerebral venous thrombosis (CVT). Of 289 confirmed cases of CVT admitted to our comprehensive stroke center between 2008 and 2018, 239/289 were new diagnoses and 204/239 were acute events with only 75/204 representing symptomatic CVTs not provoked by trauma or structural processes. Using ICD-10 codes in any position, sensitivity was 39.1% and positive predictive value was 94.2% for patients with a current or history of CVT and 84.0% and 52.5% for acute and symptomatic CVTs not provoked by trauma or structural processes.
Related Concept Videos
Venous Thrombosis II: Clinical Manifestations and Diagnostic Studies
Venous Thrombosis III: Interprofessional Care
Venous Thrombosis I: Introduction
Aneurysm II: Clinical Manifestations and Diagnostic Studies
Venous Thrombosis IV: Nursing Management
Varicose Veins II: Diagnostic Studies and Interprofessional Care

