What Is Denials Management?
Denials management is the end-to-end process by which a healthcare organization identifies denied or rejected insurance claims, investigates the reason for each denial, corrects or appeals where appropriate, and implements upstream changes to prevent the same denials from recurring. It is not a one-time fix — it is a continuous, structured workflow that sits at the intersection of clinical documentation, billing accuracy, payer policy, and operational follow-through.
In revenue cycle management, denials management is often described as both reactive (fixing what was denied) and proactive (preventing denials before claims leave the building). High-performing RCM teams do both.
Denial vs. Rejection — An Important Distinction
These two terms are often used interchangeably, but they are not the same:
- Rejection: The claim was not accepted into the payer's system — typically due to a formatting or data error (wrong NPI, missing field, invalid code). Rejections happen before adjudication and must be corrected and resubmitted.
- Denial: The claim was received and processed, but payment was refused. Denials require either a corrected resubmission or a formal appeal, and they are governed by payer-specific timely filing limits.
Understanding this distinction matters because denials trigger appeal rights and have regulatory deadlines, while rejections are simply administrative corrections.
Types of Denials
Denials are broadly categorized as soft or hard:
- Soft denials are temporary and correctable — missing documentation, wrong date of service, authorization not yet received. They can often be resolved by resubmitting with additional information.
- Hard denials are more definitive — lack of medical necessity, non-covered service, or untimely filing. They typically require a formal appeal or must be written off.
Within those categories, the most common denial types RCM teams encounter include:
- Authorization-related denials: Service was performed without prior authorization or the auth obtained did not match what was billed.
- Medical necessity denials: The payer determined the service was not clinically appropriate or not sufficiently documented. These are hard denials and require physician-supported appeals.
- Coding denials: Incorrect CPT, ICD-10, or modifier codes. Often correctable with a corrected claim.
- Eligibility denials: The patient was not covered on the date of service, or benefits were exhausted. These require either a corrected claim (if the error is on the provider side) or patient billing.
- Duplicate claim denials: The claim was submitted more than once. These require investigation to confirm whether a payment was already made.
- Timely filing denials: The claim was submitted past the payer's deadline. These are rarely overturnable without documented proof of prior timely submission.
The Denials Management Process
Effective denials management follows a structured cycle:
1. Identification and triage. Every denied claim should be captured in a denial worklist and categorized by payer, denial reason code (CARC/RARC), dollar value, and denial type. Prioritization should be based on value, actionability, and timely filing deadlines — not just first-in, first-out.
2. Root cause analysis. Before working a denial, identify whether it is a one-off error or part of a pattern. Payer-level denial rate trending, denial reason code frequency reports, and provider-level denial analysis are key tools here. HFMA's guidance on navigating the rising tide of denials emphasizes data-driven root cause analysis as the foundation of any effective denials program.
3. Rework and resubmission. For correctable denials, the billing team corrects the claim (updated codes, appended documentation, corrected patient data) and resubmits. A corrected claim is not the same as an appeal — they use different claim submission processes and are governed by different timelines.
4. Appeals. When the denial cannot be corrected at the claim level — typically for medical necessity or coverage disputes — a formal appeal is filed. Appeals should include a cover letter, clinical documentation, relevant payer policy language, and if appropriate, a physician attestation. Appeal success rates have declined in recent years: the median success rate for commercial plan appeals dropped from 56% to 45%, according to an Advisory Board survey cited by Becker's Hospital Review, making appeal quality more important than ever.
5. Prevention. The goal of any mature denials management program is to reduce denial volume at the source. This means feeding denial patterns back into pre-service workflows: updating prior auth checklists, refining documentation templates, correcting claim edits, and training billers and clinicians on recurring problem areas.
When Does Denials Management Matter Most in RCM?
Denials management is always relevant, but becomes especially critical in these situations:
- Payer policy changes: Medicare Advantage and commercial payers routinely update their coverage policies, prior auth requirements, and coding guidelines. Practices that do not actively monitor payer bulletins see denial spikes after policy changes take effect.
- Volume surges: High-volume periods (post-holiday catch-up, after a backlog clearance) are when denial follow-up most often falls behind. Unworked denials that age past timely filing deadlines become permanent write-offs.
- New service lines or providers: Onboarding a new specialty or provider credentialing issues are common triggers for eligibility and authorization denials that require a targeted response during the ramp-up period.
- EHR or clearinghouse migrations: System transitions are among the most common causes of sudden denial spikes. Claims that were formatted correctly in the old system often need adjustment for the new workflow.
The Financial Stakes
Denials are not a minor nuisance. According to research cited by HFMA, providers spend an estimated $19.7 billion annually processing denied claims, with the average denial costing nearly $44 per claim to rework. Twenty-two percent of healthcare organizations report losing at least $500,000 per year to denials alone.
Meanwhile, denial rates are rising. Medicare Advantage denials increased nearly 56% in recent years; commercial plan denials climbed over 20%. From 2022 to 2024, the share of providers reporting increasing denials jumped from 42% to 77%. These trends make a passive, reactive denials program increasingly costly.
Benchmarks to Track
Key metrics for a denials management program include:
- Initial denial rate: Best-in-class practices achieve below 5%. Industry average is 8–12%.
- Denial overturn rate: The percentage of appealed denials that result in payment. Target: 65%+.
- Denial write-off rate: The percentage of denials that are ultimately written off without recovery. Should be under 3% of total charges.
- Days to work a denial: Speed matters; claims worked within 7 days of denial have significantly higher recovery rates than those left for 30+ days.
Automation is transforming this space. AI-driven systems now handle denial triage, auto-populate appeal letters based on payer-specific requirements, and track appeal outcomes to continuously refine strategy — though HFMA notes that AI adoption in denials management still lags behind other RCM applications, with only about one in five providers currently applying it.
