Working Denials
Read a denial, identify its real cause, and decide between correcting, appealing, and writing it off.
By the end of this lesson you can
- Interpret denial reason codes
- Categorize denials by root cause and by whether they are preventable
- Choose between a corrected claim, an appeal, and a write-off
- Prioritize a denial queue by recoverable value
Lesson Notes
Read through the key concepts before you try the challenge.
A denial is information about a process
You inherit the denial queue at Lakeside Medical Associates.
There are 138 denials worth $47,000. Working them oldest-first would be reasonable if they were equivalent. They are not: some are worth $40 and some $3,000, some are five days from a filing deadline, and roughly a third are eligibility denials with no realistic prospect of recovery.
Your task: Work the queue by recoverable value and deadline rather than by date order.
Every denial carries reason codes. Claim Adjustment Reason Codes state why the amount was reduced; Remittance Advice Remark Codes add detail. Reading them is the first step, and the code frequently names the fix directly.
| Category | Usually means | Action |
|---|---|---|
| Eligibility / coverage terminated | Coverage was not active on the date of service | Check for other coverage; often becomes patient responsibility. Rarely appealable |
| No prior authorization | Required approval was not obtained | Request retroactive authorization if the payer permits; appeal with clinical justification |
| Medical necessity | Documentation does not support the service | Appeal with records if the documentation does support it; otherwise the denial stands |
| Bundling / NCCI edit | Two codes should not be billed together | Review whether a modifier is genuinely warranted. Do not add one reflexively |
| Duplicate claim | Payer already has this claim | Check status before resubmitting — usually the original is still processing |
| Timely filing | Submitted past the deadline | Generally not recoverable. Investigate why it aged |
| Non-covered service | The plan excludes this benefit | Bill the patient if an ABN or equivalent notice is on file |
Prioritizing a 138-claim denial queue
Decide the order to work $47,000 of denials with limited staff time.
- 1
Sort by days remaining until the appeal or filing deadline.
Deadlines are absolute. A $3,000 claim five days from its appeal window is worth more attention today than a $3,000 claim with ninety days left, because one becomes worthless on a known date and the other does not.
- 2
Within that, sort by dollar value.
Staff time is the constraint. Ten minutes recovering $2,400 is a better use of it than ten minutes recovering $40 — and the small-dollar denials are usually the ones a practice should be preventing rather than working.
- 3
Set aside the categories with no realistic recovery.
Eligibility denials where coverage genuinely was not active, and timely filing denials caused by the practice, will not be paid. Working them feels productive and recovers nothing. Route them to patient billing or write-off and spend the time where recovery is possible.
- 4
Group the remainder by reason code and look for patterns.
Twenty-nine authorization denials are not twenty-nine problems; they are one process problem twenty-nine times. Fixing the front-end process stops the thirtieth, which is worth more than recovering any single claim.
- 5
Report the pattern, not just the recovery total.
'We recovered $18,000' is an outcome. 'We recovered $18,000, and 29 denials came from one gap in the authorization process that I have proposed fixing' is an outcome plus a prevention — and the second is what changes next month's numbers.
Result: Deadline-critical high-value claims worked first, unrecoverable categories routed appropriately, and the root cause identified.
Work by deadline and value, not by date received. Then look for the pattern — denials are a symptom of a process, and the process is where the leverage is.
You have 138 denials of varying value and deadline. What should determine the order you work them?
Challenge
Apply what you've learned in this lesson.
Practice triage, which is most of what denial work actually is.
- Research CARC and RARC code sets. Find the codes for medical necessity, no authorization, and timely filing.
- Given these denials — $2,400 medical necessity with 8 days left to appeal; $180 eligibility with 60 days; $3,100 no authorization with 45 days; $95 timely filing — rank them and justify each position.
- Write an appeal letter for the medical necessity denial. State the claim, the denial reason, why the documentation supports the service, and what you are asking for.
- For the same month's denial mix, name the single process change you would recommend and estimate what it would prevent.
Finished this lesson?
Progress is saved in this browser only. It is not a grade — official progress lives in Brightspace.