Work the denial queue

The denial queue is where every adjudicated claim that wasn’t paid in full goes. Working it well means two things: recovering the money, and — the part most practices skip — feeding root causes back upstream so the same denial stops happening.

Prerequisites

Posting configured so denials route to the queue rather than to write-off
A fixed root-cause taxonomy
Appeal deadlines recorded per payer
Fee schedules loaded, so underpayments surface

The daily loop

Triage new denials by CARC family

Group them, because the fix is per-family rather than per-claim:

Family	CARCs	Typical fix
Eligibility	26, 27, 31, 32	Verify coverage, correct the insurance record, rebill
Authorization	197, 198	Corrected claim with the auth number, or retro-auth, or appeal
Coding / medical necessity	11, 16, 50, 167	Review documentation; correct or appeal with policy citation
Bundling	97	Verify NCCI edits; modifier if clinically justified
Timely filing	29	Appeal with proof of submission
Coordination of benefits	22, 23	Determine order; bill primary; patient may need to update COB
Credentialing / enrollment	8, 185, 206	Resolve with payer enrollment, then rebill
Duplicate	18	Usually you resubmitted instead of correcting
Non-covered	96, 204	Benefit design, patient responsibility or write-off

Prioritize by dollars, not by count

Ten

40 denials matter less than one

900 denial. Sort the queue by amount, descending, within age bands.

Decide: correct or appeal

	Corrected claim	Appeal
Use when	The claim had wrong or missing data	The claim was right; the payer was wrong
Speed	Days to weeks	Weeks to months
Deadline	Corrected-claim window, often shorter	Appeal window per contract

Tag the root cause from a fixed taxonomy

Eligibility · Authorization · Coding · Documentation · Credentialing · Timely filing · COB · Demographic error · Payer error · Benefit design.Free-text root causes are useless in aggregate, which defeats the entire point of tagging. Use a closed list.

Enforce the aging rule

No denial sits untouched longer than 14 days. Appeal windows are short, and a denial nobody has looked at is a denial you are about to lose.Make the age of the oldest untouched denial a tracked metric.

Close the prevention loop weekly

Rank root causes by dollars. Change one upstream control per week. Verify next week that the cause dropped.Prefer structural fixes, a scrubber edit, over checklist items. See Build the billing rhythm.

What not to write off

A CO-denial cannot be billed to the patient. Group code CO means contractual obligation — the patient did nothing wrong. CO-197 (missing authorization) is the common example. Billing the patient breaches your participation agreement.And do not write off a denial before assessing appeal rights. A write-off is a decision to abandon the money, and it should be a deliberate one with a root-cause tag, not a default.

Underpayments belong here too

An underpayment doesn’t announce itself — the money arrives and the claim closes. With fee schedules loaded, your posting flags allowed amounts below the contracted rate. Underpayment is usually systematic, not random: a payer that loaded your contract wrong underpays every instance of the affected codes. Aggregate before disputing — one

12 shortfall isn't worth a call; two hundred instances of the same

12 shortfall is a configuration error worth a formal dispute, and the correction is retroactive. See Underpayments and contracts.

Metrics for the queue

Metric	Target
Denial rate	Under 5–10% of adjudicated lines
Oldest untouched denial	Under 14 days
Denials resolved within 30 days	80%+
Appeal overturn rate	Track your own, by payer and reason
Denial write-off as % of net revenue	Under 1–2%
Top root cause by dollars	Should change over time as you fix them

That last one is the real signal. If the same root cause tops the list for three months, your prevention loop isn’t working.

Verify it worked

Denials route to the queue, not to auto-write-off
Triaged by CARC family, prioritized by dollars
Fixed root-cause taxonomy in use
Nothing untouched over 14 days
Corrected claims use frequency codes and reference the original
CO-denials never billed to patients
Underpayments flagged and aggregated
One upstream control changed per week, and verified

Common failure modes

Failure	Consequence
Working by date received rather than by dollars	Small denials consume the time
Free-text root causes	No aggregate signal
Denials aging past appeal windows	Unrecoverable
Resubmitting instead of correcting	CARC 18 duplicates
Writing off before assessing appeal rights	Abandoned recoverable revenue
Billing patients for CO-denials	Contract breach
Working the queue but never changing upstream	The same denials, forever

Formation & Corporate

Agreements

Credentialing & Payer Enrollment

Billing Operations

Patient Payments & Refunds

Banking & Finance

Compliance Tasks

Work the denial queue

Prerequisites

The daily loop

What not to write off

Underpayments belong here too

Metrics for the queue

Verify it worked

Common failure modes

​Prerequisites

​The daily loop

​What not to write off

​Underpayments belong here too

​Metrics for the queue

​Verify it worked

​Common failure modes

Prerequisites

The daily loop

What not to write off

Underpayments belong here too

Metrics for the queue

Verify it worked

Common failure modes