Transition to ICD-10 Diagnoses and Procedures in the HCSRN Virtual Data Warehouse

Abstract

Background/Aims: Federal regulations require that all U.S. health care providers transition from ICD-9 to ICD-10 for diagnosis and hospital procedure coding on Oct. 1, 2015. The changes between the two versions are dramatic; the new version expands the number of diagnosis codes from about 13,000 to 68,000 and increases the number of procedure codes from approximately 4,000 to 90,000. These changes require programmers to modify their file-building software when creating the diagnosis and procedure tables in the Health Care Systems Research Network (HCSRN) Virtual Data Warehouse (VDW). We will describe the transition to ICD-10 diagnostic and procedure data in the VDW as well as development of data quality reports to check on completeness of ICD-10 conversion at the participating HCSRN sites.