Billing diagnoses do not accurately identify out-of-hospital cardiac arrest patients: An analysis of a regional healthcare system.

ABSTRACT:

Background

International Classification of Diseases 9th Edition's Clinical Modification (ICD-9CM) codes are frequently used in health services research. We tested the operating characteristics of ICD-9CM codes for identifying out-of-hospital cardiac arrest (OHCA) subjects.

Methods

We used ICD-9CM codes to generate an "administrative cohort" of subjects treated after possible OHCA at one of six emergency departments (EDs) between January 2010 and April 2014. We performed a structured chart review to determine proportion of this administrative cohort with actual OHCA (true positive rate for the ICD-9CM-based search method). The largest study site maintains a prospective registry of consecutive OHCA subjects, which we used to construct a "registry cohort". We used this cohort t

SUBMITTER: Coppler PJ 

PROVIDER: S-EPMC4715911 | biostudies-literature | 2016 Jan

REPOSITORIES: biostudies-literature