Identification of Patients with Nontraumatic Intracranial Hemorrhage Using Administrative Claims Data.

ABSTRACT:

Introduction

Nontraumatic intracranial hemorrhage (ICH) is a neurological emergency of research interest; however, unlike ischemic stroke, has not been well studied in large datasets due to the lack of an established administrative claims-based definition. We aimed to evaluate both explicit diagnosis codes and machine learning methods to create a claims-based definition for this clinical phenotype.

Methods

We examined all patients admitted to our tertiary medical center with a primary or secondary International Classification of Disease version 9 (ICD-9) or 10 (ICD-10) code for ICH in claims from any portion of the hospitalization in 2014-2015. As a gold standard, we defined the nontraumatic ICH phenotype based on manual chart review. We tested explicit definitions based on

SUBMITTER: Sangal RB 

PROVIDER: S-EPMC7686163 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature