Validation of algorithms to identify colorectal cancer patients from administrative claims data of a Japanese hospital.

ABSTRACT:

Background

Administrative claims data are a valuable source for clinical studies; however, the use of validated algorithms to identify patients is essential to minimize bias. We evaluated the validity of diagnostic coding algorithms for identifying patients with colorectal cancer from a hospital's administrative claims data.

Methods

This validation study used administrative claims data from a Japanese university hospital between April 2017 and March 2019. We developed diagnostic coding algorithms, basically based on the International Classification of Disease (ICD) 10th codes of C18-20 and Japanese disease codes, to identify patients with colorectal cancer. For random samples of patients identified using our algorithms, case ascertainment was performed using chart review as

SUBMITTER: Hirano T 

PROVIDER: S-EPMC10029250 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature