Coding Trend Analyses: Anaphylaxis

Project Title Coding Trend Analyses: Anaphylaxis
Date Posted
Wednesday, October 30, 2019
Status
Complete
Deliverables
Description

The purpose of this report was to compare the frequency of diagnoses for anaphylaxis using International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) versus International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) diagnosis codes. Anaphylaxis was defined using a complex algorithm that included combinations of ICD diagnosis codes with Healthcare Common Procedure Coding System (HCPCS) and Current Procedural Terminology, Fourth Edition (CPT-4) procedure codes. ICD-10-CM code definitions were determined by mapping from ICD-9-CM code definitions using the Centers for Medicare and Medicaid Services (CMS) General Equivalence Mappings (GEMs). Forward-backward mapping (FBM) was used to map ICD-9-CM to ICD-10-CM codes.(1)

 

(1) Fung, K. W., et al. (2016). "Preparing for the ICD-10-CM Transition: Automated Methods for Translating ICD Codes in Clinical Phenotype Definitions." EGEMS (Wash DC) 4(1): 1211.

Health Outcome
anaphylaxis
Time Period
October 1, 2010 - March 31, 2016
Data Sources
IBM® MarketScan® Research Databases