What is a GEM?
GEM - General Equivalency MappingsMapping resources: CMS provided a quick tour of its ICD-10 mapping system, which is posted on its Web site. The crosswalk, known as “general equivalency mappings” or “GEMs,” will help practices convert the existing ICD-9 codes to the new ICD-10 codes, and vice-versa.
The GEMs are a tool that can be used to convert applications and data from ICD-9-CM to ICD-10-CM/PCS and vice versa. The GEMs are a comprehensive translation dictionary that can be used to accurately and effectively convert any ICD-9-CM-based application to ICD-10-CM/PCS, or translate any ICD-9-CM-based data, including data for tracking quality, recording morbidity/mortality, and calculating reimbursement.
They can be found on these sites:
- CMS ICD-10 website - www.cms.hhs.gov/ICD10
- AAPC ICD-9 to ICD-10 translator - www.aapc.com/ICD-10/codes/index.aspx
Example:
| 4 ICD-9-CM codes are replaced by 28 ICD-10-CM codes | ||
|---|---|---|
ICD-9 |
ICD-10 |
|
555.0 Regional enteritis of small intestine |
K50.00 Crohn's disease of small intestine without complications |
|
