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Medical Coding Expert Witnesses

Healthcare providers, billing companies, and insurers face litigation whenever medical coding practices are challenged as inaccurate, fraudulent, or inconsistent with payer requirements. These disputes commonly involve False Claims Act and healthcare fraud allegations concerning improper coding and billing practices, disputes between providers and payers over the medical necessity and accuracy of billed codes, and professional liability and compliance matters arising from coding audits and reimbursement disputes. Because medical coding requires precise application of complex and frequently updated coding systems to clinical documentation, the central issue in these cases is typically whether a coding decision was consistent with the applicable coding guidelines and the clinical documentation supporting it. Resolving that question requires an expert with detailed knowledge of coding systems and healthcare reimbursement rules.

A medical coding expert reviews clinical documentation, billing records, and applicable coding guidelines to determine whether coding and billing decisions were consistent with accepted coding standards and payer requirements. That analysis often distinguishes between a coding error and fraudulent upcoding or unbundling, which is central to liability determinations in False Claims Act and healthcare fraud matters. In provider-payer disputes, the expert’s application of coding guidelines to specific clinical documentation supports both liability and damages analysis by clarifying whether billed codes were properly supported. This same expertise strengthens litigation strategy by giving counsel a framework for evaluating an opposing expert’s coding analysis.

Because medical coding disputes require precise, guideline-specific technical knowledge, selecting an expert with direct coding, auditing, or compliance experience is essential. The experts we can provide include certified medical coders, health information management professionals, and coding compliance auditors with backgrounds spanning hospital and physician practice coding across multiple specialties. Round Table Group has completed more than 75,000 expert searches for litigators, and we apply that experience to match counsel with medical coding experts whose specific background fits the case. Let us help you find the right medical coding expert for your case by calling us at (202) 908-4500.

Kinds of Cases We Work On

Round Table Group helps our clients find a wide variety of Medical Coding expert witnesses for cases like:

01

DRG Upcoding Recoupment Across a Hospital System

A national payer sued a regional hospital system alleging a multi-year pattern of inpatient DRG upcoding, seeking recoupment after a claims audit flagged hundreds of admissions coded at higher severity levels than the medical records supported. We identified experts with experience in inpatient DRG coding methodology, ICD-10-CM/PCS coding accuracy, and clinical documentation integrity. The expert's chart-by-chart recoding of a statistically valid sample confirmed a substantial share of admissions were coded above the supportable severity level, anchoring a substantial recoupment claim.
02

Inflated E/M Levels in a Physician Practice Sale

A private equity buyer sued the sellers of a multi-site physician practice group after discovering the group's pre-acquisition revenue relied heavily on evaluation and management codes billed at levels the underlying documentation did not support. We identified experts with experience in E/M coding guidelines, clinical documentation review, and physician practice revenue analysis. The expert's audit of a representative patient sample found the majority of high-level visits should have been coded lower, supporting a meaningful purchase price adjustment claim.
03

The Billing Company's Blind Spot on Coding Errors

A healthcare investor sued the seller of a medical billing services company after post-acquisition audits revealed the company's internal coding quality assurance program had missed years of systemic errors across its client base, exposing the buyer to compliance liability it hadn't priced into the deal. We identified experts with experience in medical coding compliance program design, coding quality assurance auditing, and healthcare billing risk assessment. The expert's review of the QA sampling methodology found it had never tested for the error patterns that later surfaced, supporting a meaningful indemnification claim.
04

Denial Rate Spike From an Outsourced Vendor

A hospital system sued its outsourced revenue cycle management vendor after claim denial rates tied to coding errors climbed sharply above the contract's guaranteed accuracy threshold, disrupting cash flow for the better part of a year. We identified experts with experience in claims coding accuracy standards, revenue cycle performance benchmarking, and payer denial pattern analysis. The expert's review of denial data confirmed the vendor's error rate had breached the contract's accuracy floor for consecutive quarters, supporting a meaningful damages recovery.
05

Risk Adjustment Overstatement in Medicare Advantage Coding

A Medicare Advantage plan sued a contracted provider group after a risk adjustment data validation audit found a pattern of HCC codes submitted without adequate documentation support, inflating risk scores and the plan's capitated payments. We identified experts with experience in HCC risk adjustment coding, Medicare Advantage documentation standards, and risk adjustment data validation methodology. The expert's review of the sampled charts found a substantial share of submitted HCCs lacked supporting documentation, anchoring a substantial recoupment claim.
06

Unbundled Procedures at an Ambulatory Surgery Center

An insurer sued an ambulatory surgery center chain alleging a pattern of unbundling procedure codes that should have been billed together under a single global code, inflating reimbursement across thousands of surgical cases. We identified experts with experience in CPT coding and bundling rules, surgical coding compliance, and NCCI edit methodology. The expert's claims-level analysis confirmed the unbundling pattern across a large share of sampled cases, supporting a substantial recoupment claim.
07

The Missed Errors From a Compliance Audit Firm

A hospital system sued the coding compliance audit firm it had retained to certify its billing practices after a subsequent government audit uncovered widespread coding errors the firm's prior reviews had failed to identify, forcing a costly voluntary repayment. We identified experts with experience in coding compliance audit methodology, statistical sampling for claims review, and healthcare regulatory self-disclosure standards. The expert's review of the firm's audit workpapers found its sampling approach was too narrow to have detected the error patterns, supporting a substantial professional negligence recovery.
08

Software-Driven Coding Errors From a System Update

A health system sued its claims processing software vendor after a coding logic defect in a system update caused thousands of claims to generate incorrect procedure codes over several months, triggering widespread payer denials and recoupment demands. We identified experts with experience in claims coding software validation, automated coding logic review, and healthcare claims system testing standards. The expert's review of the defect's code path confirmed it had systematically mis-mapped a common procedure code, supporting a substantial breach of contract recovery.
09

Outsourced Coding Breach by an Offshore Vendor

A hospital sued its offshore medical coding staffing vendor after an internal quality review found the vendor's coders had exceeded the contract's allowable error rate on a significant share of reviewed charts, contributing to a wave of payer takebacks. We identified experts with experience in medical coding quality benchmarking, outsourced coding vendor oversight, and claims accuracy auditing. The expert's re-audit of the vendor's coded charts confirmed the error rate was well above the contracted threshold, supporting a meaningful damages claim.
10

Transport Level Dispute Over Ambulance Billing Codes

A payer sued an ambulance transport company alleging a pattern of billing advanced life support codes for transports that documentation showed only met basic life support criteria. We identified experts with experience in ambulance transport coding standards, EMS documentation review, and HCPCS coding compliance. The expert's review of run reports against the billed codes found a substantial share of transports were coded above the documented level of service, supporting a meaningful recoupment claim.

Here are a few of our favorite Medical Coding Expert Witnesses:

South Carolina Medical Coding Expert #14488

I have 19 years of experience, and specialize in the field of health information management with specific knowledge in the areas of medical coding for facility and physician entities, healthcre fraud and abuse and medical record audits.

 

New Jersey Medical Coding, Reimbursement Expert #24626

I have 30 years of experience and specialize in the field of healthcare management, with specific knowledge of medical coding, reimbursement and teaching medical courses.

 

Missouri Medical Coding Expert #24668

I have 10 years of experience and specialize in the field of evaluation and management (EM) coding with specific knowledge of consultation, office, preventive medicine and inpatient physician coding. I have published on such topics as EM coding, EM documentation requirements and EM compliance issues.

 

Missouri Medical Coding, Plastic Surgery Expert #26332

I have 2 years of experience and specialize in the field of medical coding, with specific knowledge of plastic and reconstructive surgery.

 

Vermont Medical Coding Expert #28128

I have 8 years of experience and specialize in the field of coding, with specific knowledge of evaluation and management.

 

Your Case Deserves The Best Medical Coding Expert Witnesses

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The right expert witnesses and consulting experts can make your case. That’s why we have spent so many hours over the past quarter century making sure our clients have just the right expert team — whether one expert or many, early-stage advice or expert reports and testimony. Across over 50,000 expert search assignments, we have honed a unique, customized approach to identifying, analyzing and connecting with expert talent so you can focus on winning your case.

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New Hampshire Medical Coding Expert #30654

I have 12 years of experience, and specialize in the field of medical coding with specific knowledge in the areas of evaluation and management (E&M) chart auditing and medical coding. I have published on such topics as anesthesia and neurology.

 

Washington Medical Coding Expert #34322

I have 25 years of experience, and specialize in the field of medical coding and billing with specific knowledge in the areas of obstetrics and gynecology, emergency medicine and documentations guidelines. I have published on such topics as proper coding for obstetrics and gynecology, emergency medicine coding details and correct documentation skills.

 

Colorado Medical Coding, Audits Expert #34486

I have 11 years of experience and specialize in the field of consumer packaged goods, with specific knowledge of sustainability, value chain relationship management and consumer marketing.

 

Oklahoma Medical Coding Expert #34989

I have 10 years of experience, and specialize in the field of health care with specific knowledge in the areas of medical coding, medical records and health information.

 

Minnesota Medical Coding Expert #36727

I have 29 years of experience and specialize in the field of medical coding, with specific knowledge of evaluation and management auditing, documentation and diagnosis, and procedural coding. I have published on such topics as documentation, evaluation and management coding and diagnosis coding.

 

North Dakota Medical Billing, Medical Coding Expert #44196

I have 20 years of experience, and specialize in the field of medicine with specific knowledge in the areas of medical billing, medical coding and medical payment. I have published on such topics as billing, payment and coding. I have testified 50 times on topics such as medical billing, coding, payment and medical necessity.

 

Oregon Medical Coding, Compliance Expert #45347

I have 27 years of experience, and specialize in the field of ophthalmology and optometry with specific knowledge in the areas of medical coding and compliance, practice valuation and leadership training. I have published on such topics as medical coding, insurance audits and practice appraisals and valuations. I have testified 15 times on topics such as practice appraisal and valuation, medical coding and medical record compliance.

 

Put Our Medical Coding Expert Network to Work for You

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Our huge network of experts – eminent university professors and practitioners who have achieved renown as thought leaders in their fields – combined with unparalleled research capabilities puts the experts you need at your disposal when and where you need them.

If you’re a litigator or general counsel, we want to put this network to work for you and your clients. Let us know how we can help by calling us at (202) 908-4500 or filling out the form on this page. We’re so confident you’ll love what we do that unless you retain an expert we present there’s no charge!

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Questions Attorneys Ask About Medical Coding Expert Witnesses:

A medical coding expert is typically needed when a False Claims Act or healthcare fraud allegation involves improper coding or billing practices, when a provider and payer dispute the medical necessity or accuracy of billed codes, or when a coding audit or compliance matter turns on whether coding decisions followed applicable guidelines. Counsel often retains the expert once clinical documentation and billing records are available so the analysis can inform liability strategy.
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