Medicare Claims Processing Manual (Pub. 100-04), Ch. 31 § 20.3
Flat Files
20.3 - Flat Files
(Rev. 2937, Issued; 04-25-14, Effective: 04-14-14, Implementation: 04-14-14)
For the current ASC X12 276/277 claim status request and response and beyond inclusive
of any adopted Errata by ASC X12, the CMS developed flat files that maintainers and
contractors may use. These files are available on the following CMS Web page:
http://www.cms.gov/ElectronicBillingEDITrans/10_ClaimStatus.asp#TopOfPage