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Starting January 1, 2020, even for items and services provided before this date, suppliers MUST submit claims with the MBI.
With a few exceptions, Medicare will reject claims suppliers submit with HICNs.
For more information about the MBI and new Medicare cards, see https://www.cms.gov/Medicare/New-Medicare-Card/index.html.

Welcome to
National Government Services CEDI

The CEDI (Common Electronic Data Interchange) provides a single, electronic front end solution for all Medicare DME suppliers. CEDI works closely with software vendors, billing services, clearinghouses, and Trading Partners (submitters) for their Medicare DME electronic transactions.

All DME MAC electronic claims (X12 837P and NCPDP D.0) as well as X12 276 transactions are collected by CEDI. CEDI also returns all DME MAC electronic front end acknowledgements/reports, X12 835 electronic remittance advices and X12 277 claim status response transactions.

NOTE: CEDI does not handle Claim Status Inquiry (CSI) or Electronic Funds Transfer (EFT). DME MAC suppliers must contact the appropriate DME MAC Jurisdiction for CSI and EFT information.

This Web site is dedicated to National Government Services' CEDI information.

For information about the availability of auxiliary aids and services, please visit: https://www.medicare.gov/about-us/nondiscrimination/accessibility-nondiscrimination.html

Check the CMS New Medicare Card   External link web page for the latest information and educational resources to transition to the New Medicare Card.


What's New ★

CGS Transitioning to HIGLAS


New MLN Matters Article Medicare Fee-for-Service (FFS) Response to the 2020 Commonwealth of Puerto Rico Earthquakes


Top 10 CEDI Edits for December 2019


Update to the Medicare Remit Easy Print Codes.ini File JAN 2019


Reissued MLN Matters Article New Medicare Beneficiary Identifier (MBI) Get It, Use It