Claims Submission and Clearinghouse Operations
From charge to claim
The claim is the formal request for payment. Know the CMS-1500 (professional) and UB-04/837I (institutional) formats, the 837P/837I electronic transactions, and the clearinghouse role: it validates claims against edits, scrubs for errors, translates formats, and routes to payers, returning 277CA acknowledgments and later 835 remittances.
Key concepts: claim edits (front-end edits for missing data, NCCI edits for bundling, medical necessity edits), clean claim rate, claim scrubber logic, timely filing deadlines, and claim status inquiries (276/277). Understand that a claim rejected at the clearinghouse (front-end rejection) never reached the payer, while a payer denial means it was adjudicated and refused - different workflows and appeals.
Traps in questions
- Confusing a clearinghouse rejection with a payer denial. Rejections are pre-adjudication and are corrected and resubmitted; denials require appeal or correction per payer rules.
- Missing timely filing windows - resubmission after appeal must respect the original or appeal deadline.
- Assuming a submitted claim is a clean claim; edits catch many errors before submission.
- Ignoring NCCI bundling edits and submitting unbundled codes.
Rule of thumb
Fix edits before submission; treat every front-end rejection as a free chance to correct before the payer sees it. Track acknowledgments to confirm receipt.
Worked example
A claim is rejected by the clearinghouse for a missing NPI. This is not a denial - correct the NPI, resubmit, and confirm the 277CA acceptance. No appeal is needed because the payer never adjudicated it.