The ASC X12N Health Care Claim Status Request and Response (276/277) is a paired transaction set consisting of a Request (276) and a Response (277).
The Request is used by the submitter of the claim to determine the status of a claim or claims previously submitted. The Response is returned by the payer and the information provided indicates where the claim is in the adjudication process (for example, pending, finalized) and if finalized, the disposition of the claim (for example, paid, denied). For denied or rejected, the reason for the denial or rejection is included.
Depending on how the payer or other entity adjudicates claims, the Response can report the status of individual services submitted in the claim.