Query claim status in real time using the X12 276/277 transaction set via a clearinghouse API

Verified steps

1. Confirm that the target payer supports real-time 276/277 via your chosen clearinghouse; many payers accept batch 276 only — for those, implement a scheduled batch job rather than a synchronous call.
2. Construct the 276 inquiry with the correct loop structure: Loop 2000A (payer), Loop 2000B (billing provider), Loop 2000C (subscriber), Loop 2000D (dependent if different), Loop 2000E (claim service line) — include the patient control number and the date of service to uniquely identify the claim.
3. Submit the 276 to the clearinghouse API (e.g., Stedi's Real-Time Claim Status Raw X12 endpoint at stedi.com/docs/healthcare/api-reference); receive the synchronous 277 response.
4. Parse the 277 STC (status information) segment: STC01-1 is the health care claim status category code, STC01-2 is the claim status code, and STC01-3 is the entity code; map category code 'F1' (finalized/payment) and 'F2' (finalized/denial) to trigger downstream AR actions.
5. For pended or in-process status responses, store the claim with its current status and schedule a re-query; avoid continuous polling — implement backoff intervals appropriate to the payer's adjudication cycle.
6. Reconcile 277 status responses against your AR system daily; claims that age past the payer's expected adjudication window without a finalized status should be escalated for manual follow-up or resubmission.