By Krithika Srivats, Senior Vice President of Clinical Practice at Sagility
In today’s rapidly evolving healthcare landscape, hospitals and physician groups face mounting challenges from clinical and coding denials. While technology has improved efficiency, it has also enabled payers to adopt more complex, technology-driven denial tactics.
Post-acute care denial rates more than doubled—from roughly 11% in 2020 to 23% in 2022—likely due in part to the addition of automated review processes in those years. Coding-related denials surged by 126% in 2024, and clinical documentation audits increased by 100%, according to a recent benchmark study.
The broader denial trend shows no sign of slowing. Pharmacy claims denials jumped 16% between 2018 and 2024, and marketplace insurers denied an average of 20% of all claims in 2023, with some rejecting up to 33%. These rising denial rates leave providers facing heavier administrative burdens and increased revenue loss.
The Cost of Denials: A Multi-Billion Dollar Crisis
Clinical denials aren’t just an operational headache; they can create a financial catastrophe. U.S. hospitals lose an estimated $262 billion each year to initially denied claims, averaging nearly $5 million per provider. Denials tied to authorization issues, medical necessity, and documentation errors continue to rise. Clinical denial rates doubled from 13% in 2021 to 28% in 2023.
Some of the top reasons for denials include:
- Inadequate documentation supporting medical necessity
- Missing or incorrect prior authorizations
- Level of care disputes (e.g., inpatient vs. observation)
- Coding inconsistencies (e.g., National Correct Coding Initiative edits, including Medically Unlikely Edits, or missing modifiers)
Why Are Overturn Rates So Low?
A KFF analysis finds that consumers appealed only about 1% of denied in-network claims in 2023; of those appeals, insurers upheld 56% of the original denials, and consumers rarely pursued external appeals. Common barriers include:
- Poorly written appeal letters that lack clinical rationale
- Lack of documentation on medical necessity pertaining to the level of coding and billing
- Incomplete or missing medical records
- Delayed response timelines
With the right partner and strategy, providers can turn this gap into a valuable revenue recovery opportunity.
Sagility’s Two-Pronged Approach: Technology + Clinical Insight
Sagility changes the narrative with a proven methodology that blends deep clinical expertise with advanced automation. The results speak for themselves:
- Fast-tracked 75% of cases for appeals based on propensity models.
- Achieved over 3x improvement in overturning prior auth denials and medical necessity denials.
- Scaled our services from three hospitals to 16 hospitals
- Added all specialties, including facility denials for behavioral health, diagnosis-related group (DRG) denials, extended length of stay, and long-term acute care hospital (LTACH) denials.
- Achieved a high-complexity denials overturn rate that is 2x higher than peers.
What Makes Sagility Different?
Sagility brings together smart technology, clinical expertise, and payer-savvy processes to deliver real results. But what truly sets us apart is our deep-domain experience across the healthcare ecosystem. We don’t just apply best practices; we help to define them.
Our team has spent decades navigating the complex dynamics of payers, providers, and regulatory frameworks. That experience shapes every intervention we deploy. Instead of a one-size-fits-all approach, we customize denial management strategies based on each client’s unique needs, denial types, compliance related to lines of business, and payer mix. Our strategies are rooted in firsthand knowledge of what works and why.
We focus on precision, efficiency, and full transparency, backed by tools that drive smarter decisions and better outcomes. Some of our industry-informed tactics include:
- Custom Appeal Letters: Tailored to payer criteria and denial type; each letter includes precise clinical justifications supported in disparate medical records, that is needed to improve overturn rates.
- Analytics-Powered Prioritization: AI-driven models help identify which denials are most likely to succeed, so teams can focus their efforts on what matters most.
- End-to-End Denial Management: From DRG reviews to medical necessity validations, Sagility supports the full denial lifecycle to maximize recovery.
- LLM-Based GenAI Tools: Large language model (LLM)-powered tools boost nurse productivity and accuracy during medical record reviews.
- Real-Time Dashboards and Reporting: Clients gain full visibility into denial trends, audit trails, and financial recovery, all in one place.
Our tailored approach delivers measurable value, whether starting small or scaling systemwide. One engagement that illustrates this evolution began as a limited pilot and grew into a transformational solution.
Case in Point: Scaling Success Across a 20-Hospital System
After struggling with rising clinical denials in the wake of COVID-19, a major faith-based health system turned to Sagility for support. The engagement began as a focused pilot at two hospitals with just five nurses. As the pilot delivered strong early results, the health system expanded the partnership to 19 hospitals and more than 40 clinical experts. We helped the organization build internal confidence, optimize processes, and recover lost revenue throughout the engagement.
Key outcomes include:
- 68% of clinical denials qualified for appeal, up from 40%.
- 60–62% success rate on overturned denials, up from 20-22% with the client’s in-house teams.
- More than $12 million in annual collections, up from $1.5-$2 million.
High-Cost Drug & DRG Denials: No Case Too Complex
Sagility’s clinical team brings the expertise needed to address complex denials, from advanced biologics to nuanced DRG coding disputes. We use guidelines from MCG Health, the Centers for Medicare & Medicaid Services, and payer-specific sources to deliver clinical validations that meet payer expectations.
For example, we overturned a DRG denial for sepsis by identifying documentation gaps and applying Sequential Organ Failure Assessment criteria to support the diagnosis codes and level of care.
The Path Forward: Proactive Prevention and Continuous Learning
Sagility’s work doesn’t end with appeals. Our platform delivers actionable insights that improve documentation, reduce future denials, and help providers strengthen compliance and accuracy. Through regular audits, real-time feedback, and personalized guidance, we help clinicians and coding teams build a culture of accuracy and accountability.
The healthcare industry can’t afford to treat clinical denials as inevitable. With the right mix of expert clinical insight, automation, and payer-specific strategies, organizations can recover millions of dollars to reinvest into patient care. Our work with clients proves that overturning clinical denials isn’t just possible—it’s scalable, sustainable, and smart business.
Visit sagilityhealth.com to learn more about
Sagility’s Clinical Denials solution for providers.