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Denials Guides

Use this troubleshooting hub to separate front-end rejections, acknowledgments, payer denials, corrections, voids, and claim-status follow-up.

Troubleshooting sequence

Identify where the claim stopped before changing the data

A rejected interchange, rejected transaction, rejected claim, payer denial, and payment adjustment are different events. Start with the response that actually describes the failure, then correct the source record that produced it.

1. TA1

Was the interchange envelope accepted?

2. 999

Was the transaction structurally acceptable?

3. 277CA

Was the claim accepted into the payer workflow?

4. Remittance

How did the payer adjudicate and pay or deny?

Recommended correction order

  1. Save the original file and response together.
  2. Identify the interchange, transaction, claim, or service line cited.
  3. Correct the source data or configuration—not only the exported text.
  4. Choose corrected, void, appeal, or status follow-up based on the payer’s response.
  5. Store the resubmission reference and all later acknowledgments.
Do not resubmit blindly

A claim that was already accepted can become a duplicate when it is sent again as an original. Confirm the last accepted status before creating a replacement.

Review the electronic 837P workflow →