Beginning March 1, 2024, the CEDI Help Desk telephone support hours will change.  The CEDI Help Desk phone lines will open at 9:00 a.m. ET and close at 6:00 p.m. ET, Monday through Friday. The CEDI Help Desk will continue to be closed on Thursdays from 3:00 p.m. to 4:00 p.m. for training.

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 claim status 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  External Link