Updated Diagnosis Grouping System for Pediatric Emergency Department Visits

Area of Science:

• Medical Informatics
• Pediatric Emergency Medicine
• Health Services Research

Background:

• The original Diagnosis Grouping System (DGS) was developed in 2010 using ICD-9 codes.
• The DGS requires updates to incorporate the International Classification of Disease, Tenth Revision (ICD-10) codes.
• Accurate classification is crucial for research on pediatric emergency department (ED) patients.

Purpose of the Study:

• To update the Diagnosis Grouping System (DGS) for current use with ICD-10 codes.
• To ensure the DGS facilitates ongoing research involving pediatric emergency department data.
• To adapt the DGS classification for the latest coding standards.

Main Methods:

• Utilized 2016 Pediatric Emergency Care Applied Research Network (PECARN) database discharge data to identify ICD-10 codes.
• Mapped identified ICD-10 codes to the original DGS structure derived from ICD-9.
• Validated the updated DGS using ICD-10 codes from the PECARN database for 2017-2019.

Main Results:

• The DGS was successfully updated to incorporate ICD-10 codes.
• The updated DGS was applied to 6,853,479 (97.3%) of all codes from 2017 to 2019.
• The updated system demonstrated high applicability for recent ICD-10 data.

Conclusions:

• The Diagnosis Grouping System (DGS) has been effectively updated to include ICD-10 codes.
• This updated DGS facilitates continued research using pediatric emergency care data.
• The revised DGS ensures classification systems remain current with evolving medical coding.