Coding Trend Analyses: Myositis

Project Title Coding Trend Analyses: Myositis
Date Posted
Friday, June 15, 2018
Status
Complete
Deliverables
Description

The purpose of this report was to compare the frequency of diagnoses for myositis using International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) and International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) codes. Two separate ICD-9-CM code definitions were used to define myositis. 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
myositis
Time Period
October 1, 2010 - September 30, 2016
Data Sources
Truven Health MarketScan® Research Databases