Validation of Diagnostic Codes to Identify Carbon Monoxide Poisoning in Taiwan's Claims Data.

ABSTRACT: Purpose: Previous studies identified the study cohort or outcome of carbon monoxide poisoning (COP) by using the relevant disease diagnosis codes in secondary databases, but the validity of diagnosis codes of COP is unclear in such secondary databases. This study aimed to evaluate the accuracy of case definitions for COP using the International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) and Tenth Revision, Clinical Modification (ICD-10-CM) diagnosis codes in Taiwan's health insurance claims data. Methods: We selected a 10% simple random sample from an original cohort of patients newly undergoing carboxyhemoglobin (COHb) testing under any clinical diagnosis at four Chang Gung Memorial Hospitals in Taiwan during 2011-2020. Two clinical doctors

SUBMITTER: Chiang MY 

PROVIDER: S-EPMC9240270 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature