Validity of Nonspecific Stroke Location ICD-10 Subcodes: A Descriptive Study.

ABSTRACT:

Introduction

We aimed to describe imaging characteristics in stroke hospitalizations with nonspecific/unspecified vascular region subcodes and to assess for systematic bias in the use of these subcodes.

Methods

We captured first ischemic stroke hospitalizations from 2018 to 2022 at a single stroke center. We reviewed imaging studies to classify a gold standard of vascular region blinded to ICD-10 subcodes in 200 randomly selected hospitalizations: 100 with nonspecific/unspecified subcodes and 100 with specific subcodes oversampled for posterior circulation strokes. We assessed for systematic bias in the use of nonspecific/unspecified subcodes using multilevel logistic regression, with primary provider included as a random intercept. Separate models were applied to the full p

SUBMITTER: Hirsch JL 

PROVIDER: S-EPMC12818899 | biostudies-literature | 2026

REPOSITORIES: biostudies-literature