Inside Angle

From 3M Health Information Systems

Tag: GEMs

General Equivalence Mappings (GEMs) were developed by CMS and CDC, with collaboration of the AHIMA and the AHA, as a tool to assist with the conversion from ICD-9-CM codes to ICD-10-CM and the conversion of ICD-10-CM codes back to ICD-9-CM. GEMs act as a translation dictionary to bridge the language gap between ICD-9-CM and ICD-10-CM/PCS. They help users understand, analyze, and manage the translation of one code set to the other. They also help users create their own applied mappings as needed.

The GEMs are more complex than a simple one-to-one crosswalk. They reflect the relative complexity of the code sets clearly so that applications that use them can be managed effectively. They are public domain, general purpose reference mappings designed to give all sectors of the healthcare industry that use coded data the tools to:
• Convert large databases and test system applications
• Link data in long-term clinical studies
• Develop application-specific mappings
• Analyze data collected before and after the transition to ICD-10-CM/PCS

The GEMs were developed to serve a specific, limited, short-term need—to allow the industry to migrate systems, applications, and data from ICD-9-CM to ICD-10-CM/PCS. They are intended to be used primarily for translations of code lists or code tables used by an application or other coded data when codes in one code set are the only source of information.

Blog post

ICD-10 and DRG shifts: Your questions answered

July 11, 2016 / By Cheryl Manchenton, RN, Donna Smith, RHIA

Cheryl:  So Donna, I have been getting a lot of questions from clients about ICD-10-CM and PCS lately. I was in elementary school when the last code switch occurred.  Can […]

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ICD-10: The end, the beginning

Jan. 27, 2016 / By Rhonda Butler

Out with the old, etc. I hope 2015 saw the end of some ICD-10 habits we need to break—and 2016 is the beginning of […]

Blog post

ICD-10: Design for change

Sept. 21, 2015 / By Rhonda Butler

In Neil Stephenson’s latest novel Seveneves, one of the main characters says, “politics” is a word nerds use when they feel impatient about the human realities of an organization. When […]