US · guidance

CMS Pub. 100-04, ch. 31, § 20.3

Flat Files

activein force · 2026-08-25 – presentas-observed

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

History

(Rev. 2937, Issued; 04-25-14, Effective: 04-14-14, Implementation: 04-14-14)

Provenance

Source: cms.gov
Retrieved: 2026-08-25
Edition: iom-2026-08-25
Content hash: 18b9a5f947dd39c4da56d919ac172372798bce0e90f25cfc3810cfee29911bf6

View the official source →

The link goes to the issuing authority’s own document — the one we read to produce this record. Where a source publishes whole titles rather than sections, your browser may need a moment to jump to the provision.

Unofficial copy of government-published law, reproduced from official sources with full provenance. Not an official publication; verify against official sources before relying on it in a filing. Records in the 'guidance' corpus, and only that corpus, are sub-regulatory (interpretive guidelines, survey procedures) and are not binding law. Validity bounds follow each jurisdiction's declared temporalBasis.

Coverage · API docs