GEMs Data Files - Single User
2018 General Equivalency Mapping Data Files created by Medicare
The Quarter 1 (Q1) Data Files (effective October 1, 2016) are available now.
NOTE: Medicare has discontinued the updating of the Reimbursement Mappings. The RMs included in this set of data files are the most recent RMs available.
SINGLE user license for use in a non-commercial or private setting. If you are selling or reselling a product or service please purchase the Commercial/Multi-User file. If you have a multi-user facility, clinic, or practice this file is ideal.
It contains 3 files in CSV format (Comma Separated Value - sometimes called ASCII files) and a fourth text (TXT) file that describes the CSV file structures and provides notes and information on the contents of each data field.
- ICD9 to ICD10 - CM & PCS (CSV)
- ICD10 to ICD9 - CM & PCS (CSV)
- Reverse Mapping (RM) - CM & PCS (CSV)
- Data structure information (TXT)
See the file structure: Download a Sample ZIP File
Given the digital nature of this product, All Data File Sales are Final. Refunds are not available.
The Data Files will be available to download from a link your emailed receipt or by logging into your InstaCode.com account (created upon purchase).
Note: the "year" for ICD codes begins October 1st. Thus 2018 Q1 (1st quarter) data will be available before October 1st, 2017 and will be effective as of October 1st, 2017.