How to Reduce Medical Claim Denials: A Step-by-Step Guide for Healthcare Practices
Most practices get very good at fixing denials. Someone spots the rejection, corrects the claim, resubmits it, and moves on. That feels productive. It’s also why the same denials keep coming back month after month.
Fixing a denial gets you paid once. Preventing it gets you paid every time after that.
The numbers make the case. In a Premier survey of more than 500 hospitals, nearly 15% of claims submitted to private payers were initially denied, and more than half of those denials were eventually overturned and paid, often after several rounds of appeals. In other words, a lot of that money was owed all along. It just cost staff time and weeks of delay to collect.
This is the plan we use to bring denials down and keep them down.
The Short Answer
To reduce claim denials, measure your denial rate by payer and reason, group denials by root cause, and fix the causes at the source. In practice, that means verifying eligibility before every visit, tracking prior authorizations, coding to the documentation with the right modifiers, scrubbing claims against payer rules before submission, working denials within days, and reviewing denial trends every month so each fix sticks.
Step 1: Measure Your Denial Rate The Right Way
You can’t reduce what you don’t measure. Start with three numbers:
- Initial denial rate: claims denied on first submission, divided by total claims submitted, over the same period
- Denials by payer: the same rate broken down for each major payer
- Denials by reason: grouped by the claim adjustment reason codes (CARCs) on your remittances
Use dollar amounts as well as claim counts. Ten denied office visits matter less than one denied surgery.
Many practices aim for an initial denial rate under 5%, though the right target depends on your specialty and payer mix. The first month’s numbers are your baseline. Everything after that is about the trend.
Step 2: Group Denials By Root Cause
Denial reason codes tell you what the payer objected to. They don’t always tell you why it happened. Group each denial into one of five buckets:
| Root cause | Typical examples | Where the fix lives |
|---|---|---|
| Front-end | Inactive coverage, wrong member ID, missing authorization | Scheduling and front desk |
| Coding | Wrong specificity, missing modifier, bundled services | Coding team and providers |
| Clinical documentation | Medical necessity not supported | Providers and coding feedback |
| Billing and timing | Duplicate claims, missed filing limits, wrong payer | Billing team |
| Payer issues | Processing errors, policy changes | Billing team and payer relations |
Once denials are sorted this way, the pattern usually jumps out. In many practices, front-end and documentation problems account for most of the volume.
Step 3: Fix The Front End First
Front-end errors are the cheapest to prevent and the most frustrating to fix later. Three habits make the biggest difference:
Verify eligibility before every visit. Not just at the first appointment. Coverage changes, especially at the start of the year and when patients change jobs. Real-time eligibility checks through your practice management system or clearinghouse take seconds.
Track prior authorizations. Keep a list of which services need authorization for each major payer, check it at scheduling, and record the authorization number on the claim. Expired or mismatched authorizations are a common and avoidable denial.
Get registration right. Patient name spelling, date of birth, subscriber details and coordination of benefits all need to match the payer’s records exactly. A short checklist at check-in prevents a surprising number of rejections.
Step 4: Tighten Coding And Documentation
Coding denials often start with documentation. If the notes don’t clearly support the diagnosis or the level of service, the coder can’t code it correctly, and the payer won’t pay it.
- Code to the highest specificity the documentation supports
- Use modifiers correctly, and train staff on the ones that cause the most denials in your specialty
- Check procedure pairs against Medicare’s NCCI edits, which define services that shouldn’t be billed together, and watch for similar rules from commercial payers
- Give providers regular, specific feedback on documentation gaps, with examples from their own claims
If you’re not sure whether a problem sits with coding or billing, our explainer on medical billing vs medical coding walks through how the two roles hand off and where errors creep in.
Step 5: Scrub Every Claim Before It Goes Out
A claim scrubber checks each claim against payer rules before submission and flags problems while they’re still cheap to fix. Most clearinghouses and practice management systems include one.
The value comes from tuning it. Add payer-specific rules for your biggest denial reasons. Review what the scrubber flags each week, and turn repeat findings into new rules. A scrubber that only catches missing fields is doing a fraction of what it could.
Step 6: Work Denials Fast And Appeal Smart
Some denials will still get through. Speed matters here for two reasons. Every payer has deadlines for corrections and appeals, and the longer a denial sits, the harder it is to get the supporting information.
- Work new denials within a few days, not weeks
- Track appeal and timely filing deadlines for each payer
- Keep appeal templates for your most common denial types, with the documentation each one needs
- Don’t write off small denials automatically. They add up, and they often point to a bigger pattern
We cover the most frequent denial reasons, and what to do about each one, in our guide to common medical billing denial codes.
Step 7: Close The Loop Every Month
This is the step most practices skip, and it’s the one that makes the rest stick.
Hold a short monthly denial review with the people who can fix things: someone from the front desk, coding, billing and, ideally, a provider. Look at the top five denial reasons by dollar amount, agree on one fix for each, and check next month whether it worked.
Over time, this meeting turns denial management from a cleanup job into a prevention habit. It also gives you evidence when a payer’s behaviour changes, which is useful in contract discussions.
Step 8: Use Automation Where It Actually Helps
Automation is genuinely useful for eligibility checks, claim scrubbing, payment posting and flagging claims likely to be denied based on past patterns. It frees your team to spend time on appeals and complex accounts.
It isn’t a replacement for judgement. Software can flag a missing authorization. It can’t write a persuasive medical necessity appeal or notice that one provider’s notes changed after a template update. The same principle applies in software teams, as we found when we looked at the research on AI-enabled software development: tools help most when a person checks the output.
Benchmarks Worth Watching
Alongside denial rate, track:
- Clean claim rate: claims accepted on first pass, ideally 95% or higher
- Days in A/R: how long it takes to get paid, often targeted under 40 days
- A/R over 90 days: money at real risk of never being collected
- Denial overturn rate: how many appealed denials you win
Our guide to medical revenue cycle management services includes a benchmark table for each of these.
When To Bring In Outside Help
If denials keep rising despite your best efforts, the team may simply not have the time or specialist knowledge to get ahead of them. That’s common in growing practices and in specialties with complex payer rules.
Maple Software’s denial management team works with US practices to find the root causes behind their denials, fix them at the source, and work the existing backlog before filing deadlines run out. We report on denial rate, clean claim rate and recovered revenue every month, so you can see exactly what changed. Learn more about our denial management and revenue cycle services.
Frequently Asked Questions
What Is A Good Claim Denial Rate?
Many practices aim for an initial denial rate under 5%. Rates between 5% and 10% suggest room for improvement, and anything above that usually points to systemic front-end or coding problems. Your target depends on specialty and payer mix.
What Causes Most Claim Denials?
Front-end issues like inactive coverage, registration errors and missing prior authorizations cause a large share of denials. Coding errors and documentation that doesn’t support medical necessity are the next most common causes.
How Quickly Should Denials Be Worked?
Ideally within a few days of receiving the remittance. Payers set deadlines for corrections and appeals, and older denials are harder to overturn.
What’s The Difference Between A Rejection And A Denial?
A rejection happens before the payer processes the claim, usually because of missing or invalid information, and the claim can be corrected and resubmitted. A denial happens after processing, when the payer decides not to pay, and usually needs a correction or a formal appeal.
Can Denials Be Prevented Completely?
Not completely, because payer errors and policy changes still happen. But most practices can bring denials down significantly by fixing front-end processes, coding accuracy and claim scrubbing.
Start this week with one thing: pull last quarter’s denials, sort them into the five root-cause buckets, and pick the largest bucket to fix first. That single exercise usually pays for itself within a month.