Administrative codes inaccurately identify recurrent venous thromboembolism: The CVRN VTE study.

ABSTRACT:

Background

Studies using administrative data commonly rely on diagnosis codes to identify venous thromboembolism (VTE) events. Our objective was to assess the validity of using International Classification of Disease, 9th Revision (ICD-9) codes in identifying recurrent VTE.

Materials and methods

Among 5497 adults with confirmed incident VTE from four healthcare delivery systems in the Cardiovascular Research Network (CVRN), we identified all subsequent inpatient, emergency department (ED), and ambulatory clinical encounters associated with an ICD-9 code for VTE (combined with relevant radiology procedure codes for inpatient/ED VTE codes in the secondary discharge position or outpatient codes) during the follow-up period. Medical records were reviewed using standardized diagn

SUBMITTER: Baumgartner C 

PROVIDER: S-EPMC7335977 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature