Appeals
Underpayment appeal evidence: a practical checklist
What to keep together when a payment difference is worth pursuing, how to separate a finding from an appeal, and which evidence the payer will ask for.
By PayerBeacon · Published · Updated
Written and edited by PayerBeacon. Sources are listed below with the date each link was checked.
What evidence should I keep for an underpayment appeal?
Keep the contract rate, the remittance line, the claim details, the calculation, and the payer reference together, and redact patient identifiers before anything leaves your workspace.
It depends. A portal reconsideration may ask for a claim number and a short explanation; a written appeal may ask for the contract page, the remittance, and a line-by-line calculation. PayerBeacon organizes the evidence, but it does not file the appeal for you unless a configured delivery capability is in place.
The evidence packet
A reviewer should be able to repeat your calculation without asking a question. Put the documents in a consistent order and label every assumption.
- The contract page or fee-schedule row with the rate, effective date, code, and unit basis.
- The remittance claim and service line, including the CARC, RARC, group code, allowed amount, paid amount, and patient responsibility.
- The claim details: claim reference, date of service, procedure code, modifiers, units, and the provider identifiers required by the payer.
- The calculation: expected amount, allowed amount, difference, and every exclusion or assumption.
- The payer reference: call notes, portal case number, or the original remittance trace number.
- The submission route: manual portal, mail, clearinghouse, or a configured integration, with the date submitted.
Finding, appeal, and recovery are different stages
A finding is a computed difference that needs review. An appeal is a request to the payer. A recovery is money actually received or an adjustment the payer has accepted. Do not label a finding as a recovery, and do not promise a recovery amount before the payer responds.
This distinction matters in a client report. A report that says "we found $X" is not the same as a report that says "the payer paid $X after review." Keep both figures separate and dated.
| Stage | What you have | What you can say |
|---|---|---|
| Finding | A calculated difference and the evidence | A review candidate; recovery is not established |
| Appeal | A submitted request and its reference | Submitted, pending, or rejected; no outcome yet |
| Recovery | A payer payment or accepted adjustment | A recovered amount, with the date and evidence |
Redaction and the BAA boundary
A real remittance and fee schedule can contain protected health information or contract terms. Keep them in the BAA-gated workspace, not in email. If you must share an example externally, use a synthetic or redacted version and label it clearly.
PayerBeacon’s public BAA covers PayerBeacon’s processing. It does not replace an agency’s own obligations or a practice’s obligation to confirm who may receive PHI. Check the parties and the permitted purpose before sending files.
Before you submit
Re-read the payer’s appeal instructions and the deadline. A strong calculation sent to the wrong address or after the deadline is not a useful appeal. Record the submission date and the reference number, and keep the original remittance unchanged.
If the payer asks for something you do not have, say so. A partial packet with a clear gap is easier to review than a packet that implies evidence it does not contain.
Sources
- Original Medicare (Fee-for-Service) Appeals — Centers for Medicare & Medicaid Services. Link checked .
- Medicare Claims Processing Manual, Chapter 22: Remittance Advice — Centers for Medicare & Medicaid Services. Link checked .
- Business Associates Frequently Asked Questions — U.S. Department of Health and Human Services, Office for Civil Rights. Link checked .