Coding and HIM are no longer only in the Back Office — They’re on the Frontline of Revenue Integrity.
Sourced from MDaudit’s webinar titled: Revenue Integrity Redefined: Why Coding and HIM are Now the Frontline of Revenue Protection and Generation.
For years, Coding and Health Information Management (HIM) teams were viewed as a back-office function — a necessary step in the billing process but rarely seen as strategic drivers of financial performance. That view is rapidly becoming obsolete.
Today, in an environment defined by surging denials, aggressive payer audits, and the rapid adoption of autonomous coding technologies, Coding and HIM have moved squarely to the frontline of revenue integrity. The question is no longer whether these teams play a critical role, but whether health systems are positioned to support and leverage that role effectively.
MDaudit’s 2025 Benchmarking Report — drawn from 5B+ claims and remits, 1.5M+ annually audited cases, $200B+ in denials analyzed, and data spanning 4,500+ facilities and 140,000+ coders — makes this case with compelling force.
Revenue Integrity Is No Longer a Single-Department Problem
Revenue integrity has traditionally been defined as the accurate and ethical capture and optimization of revenue for services rendered. But in practice, different stakeholders across the organization are asking fundamentally different questions from the same data.
Revenue cycle teams are asking whether bills are going out on time and to the right payers. Billing ops is focused on charge capture and billing accuracy. Clinical and IT teams are evaluating documentation quality and code scrubber logic. And Coding and HIM are at the intersection of all of it, asked to answer: Are we coding with both integrity and accuracy, while also increasing net revenues?
That last question captures exactly why Coding and HIM can no longer operate in a silo. They are the critical connective tissue between clinical documentation and financial outcomes. When they succeed, the entire organization benefits. When they struggle, due to staffing shortages, inadequate tooling, or unsupervised AI, the financial consequences ripple across every department.
The 2025 Numbers Don’t Lie: Coding Accuracy Is a Revenue Crisis
The 2025 benchmarking data reveals a healthcare landscape under significant financial pressure — and Coding and HIM are at the epicenter.
- Coding-related denials surged 26% in outpatient settings
- That’s on top of the 126% increase reported the year prior. Errors in diagnosis coding, modifier usage, and insufficient medical record documentation are the top drivers. This isn’t a minor quality issue. It’s a mounting financial exposure that compounds year over year.
- Medicare Advantage denials reached a new inflection point
The average denied amount across MA plans increased 20% in 2025, and RFI and medical necessity-related denials increased nearly 5X — from $161 to $789 per claim. At scale across millions of encounters, this level of payer aggression demands a more proactive, data-informed response than most organizations currently have in place.
- RFI and medical necessity denials rose 70% across all care settings
With commercial payers driving a 176% increase and Medicare Advantage adding 390% in this category alone. The inpatient setting saw a 123% year-over-year increase.
- External payer audits escalated significantly
With at-risk amounts and audit cases per customer rising 30%. The average at-risk amount per payer audit at a hospital was approximately $17,000 — with coding errors, medical necessity challenges, and billing inaccuracies as the primary drivers.
These trends are not isolated. They reflect a structural shift in how payers are approaching reimbursement, and they demand a structural response from providers and health systems.
Autonomous Coding Promise and Its Hidden Risk
One of the most important discussions in revenue integrity today involves the rapid adoption of autonomous coding technologies. AI-powered coding tools are being deployed to address a real and urgent problem: the national shortage of qualified coding professionals. These tools offer genuine productivity gains, and when governed properly, they can meaningfully improve both throughput and accuracy.
But as MDaudit’s 2025 data shows, AI without oversight introduces a different kind of risk.
When governance and human controls are not in place, autonomous coding can introduce financial exposure at scale — because erroneous reasoning by an algorithm isn’t a one-off error. It replicates across thousands of claims before anyone catches it. A March 2026 BCBS Association Issue Brief put it plainly: while hospitals can achieve clear productivity gains by automating documentation and coding processes, “careful attention must be paid to ensure the newly billed diagnoses are reflective of the true acuity and level of treatment for that patient admission.”
This is where HIM professionals become indispensable. The role of Coding and HIM isn’t diminished by AI adoption. Coders and HIM leaders must function as the human governance layer in an increasingly automated environment: validating AI outputs, monitoring for drift and bias, implementing tiered audit approaches, and closing the feedback loop between coding decisions and clinical documentation.
MDaudit has identified seven best practices for auditing autonomous coding systems — from establishing strong governance and benchmarking AI performance, to using risk-based sampling and requiring transparency in algorithmic controls. You can read more about these best practices in Seven Best Practices for Auditing Autonomous Coding Systems in Healthcare.
Auto-Downcoding: The Risk Hiding in Plain Sight
One threat that deserves particular attention is the growing practice of systematic downcoding by Medicare Advantage plans. Hospitals across the country are receiving reduced payments from MA payers. Paid at a lower level of care than what was billedand in many cases, accepting those payments without challenge.
This is a dangerous pattern. Accepting downcoded MA payments may not just represent revenue leakage but create exposure under the False Claims Act if the original coding was accurate and defensible. Coding and HIM teams that are equipped to identify, document, and challenge these systematic practices are protecting their organizations from both financial and legal risk.
What This Means for 2026 and Beyond
MDaudit’s forward-looking predictions for 2026 reinforce the strategic importance of Coding and HIM:
- Outpatient coding accuracy will define financial performance. As coding-related denials continue to rise in outpatient settings, organizations that invest in closed-loop coding integrity — where AI outputs are continuously monitored and corrected — will be the ones that win the accurate reimbursement race.
- Denials will become more complex, but also more preventable. Health systems deploying pre-bill revenue integrity solutions with predictive analytics will reduce preventable denials before they ever leave the building. Coding and HIM teams are uniquely positioned to power this kind of upstream intervention.
- Payer audits will escalate, requiring continuous monitoring. Organizations with centralized audit tracking and automated risk monitoring will reduce response times and protect at-risk revenue. For this to work, Coding and HIM must have the tools and visibility to surface risk proactively — not reactively.
- Technology adoption will determine who survives and who thrives. Providers who leverage AI-powered revenue integrity platforms will see exponential improvements in operational efficiency and denial overturn rates. But technology alone isn’t the answer — it’s the combination of smart tools and empowered HIM professionals that will create a lasting competitive advantage.
The Frontline Has Shifted
Revenue integrity is no longer a single department’s responsibility; it’s a cross-functional discipline that spans billing, clinical documentation, compliance, and coding. And at the center of it all, serving as both a quality checkpoint and a strategic lever, are Coding and HIM professionals.
The data is unambiguous: coding errors are among the leading drivers of denials, audit risk, and revenue leakage. The rise of autonomous coding has amplified both the opportunity and the risk. Payers are more aggressive than ever. And health systems that fail to invest in the people, processes, and technology that support coding integrity will find themselves increasingly vulnerable.
Conclusion
The organizations that will thrive in 2026 and beyond are the ones that recognize Coding and HIM aren’t a back-office function. They are the frontline of revenue protection — and increasingly, of revenue generation.
Want to learn more about how this important function is redefining revenue integrity? Catch the on-demand recording of this webinar or contact us.
