Understanding the RUC's Impact on Dermatology Reimbursement

A payment value assigned long before a claim reaches an insurer can quietly shape what dermatology care costs, how physicians practice, and where payer-provider friction begins.

For insurance professionals, Current Procedural Terminology codes and relative value units can look like the plumbing behind medical claims. They are technical, largely invisible to members, and easy to treat as somebody else's reimbursement problem. Yet the process used to value physician services can influence network economics, provider negotiations, claims configuration, access to specialists, employer health costs, and the financial viability of certain procedures.

One of the most important players in that process is the American Medical Association/Specialty Society Relative Value Scale Update Committee, better known as the RUC. Its recommendations help inform the relative values used by the Centers for Medicare & Medicaid Services when building the Medicare Physician Fee Schedule. CMS, not the RUC, ultimately determines Medicare payment.

What the RUC Actually Does

The RUC is a multispecialty committee made up of physicians and other health care professionals, supported by specialty society advisers. When a new or revised CPT code needs valuation, or an existing service is identified as potentially misvalued, specialty societies can survey physicians who actually perform the service.

Those physicians are asked to assess the typical resources involved. For physician work, that can include time, technical skill, mental effort, judgment, stress, and intensity. Practice expense considerations can include clinical staff, supplies, equipment, and other resources required to furnish the service.

The resulting information is evaluated by the specialty society and the RUC before recommendations are sent to CMS. The process is closely connected with the broader resource-based relative value scale, or RBRVS, framework used in Medicare physician payment.

“Provides medicine a voice in shaping Medicare relative values.”

That wording is important. The RUC recommends relative values. It does not set the final Medicare fee, determine a patient's insurance benefits, decide medical necessity, establish a carrier's prior authorization rules, or dictate commercial network contracts.

From Physician Survey to Insurance Payment

A physician service under the Medicare Physician Fee Schedule is generally built from three RVU components: physician work, practice expense, and professional liability expense. Geographic adjustments account for cost differences among payment localities. The resulting value is then translated into dollars through a conversion factor. CMS describes essentially the same framework in its current Physician Fee Schedule rate-setting process.

For carriers, the practical lesson is that a change in RVUs can matter even when the plan's contracted reimbursement does not exactly mirror Medicare. CPT and relative-value concepts form an important part of the common language used throughout fee-for-service health care. They give plans, providers, consultants, and network teams a reference point for comparing services and evaluating whether payment relationships still make sense.

Why Dermatology Is a Useful Case Study

Dermatology illustrates the process especially well because the specialty combines office visits with a high volume of procedures, including biopsies, excisions, destruction of lesions, repairs, and other services that depend heavily on coding distinctions.

A good example came in 2019, when the previous primary and add-on skin biopsy codes were replaced with six codes distinguishing biopsy techniques. For practices, this required education and documentation changes. For insurers, it meant claims systems, fee schedules, edits, reimbursement logic, and provider communications had to recognize a more granular coding structure.

That illustrates a broader point: when clinical practice changes, coding often changes with it. When coding changes, valuation may have to change. When valuation changes, insurers eventually have to decide how those new signals will be reflected in reimbursement and claims administration.

The Physician Survey Is More Important Than It Looks

A RUC survey may seem far removed from a health plan's claims department, but the quality of physician participation matters. Physicians performing the service are in the best position to describe how long it takes, how difficult it is, what resources are required, and how the service compares with other established procedures.

If the underlying estimates fail to reflect actual clinical practice, the resulting debate over valuation can persist through CMS rulemaking, specialty advocacy, provider contracting, and eventually payer-provider disputes. Better information at the front end can therefore contribute to more defensible payment relationships later.

Relative Value and the Conversion Factor Are Different Problems

This is one of the most useful distinctions for insurance professionals to understand. RVUs determine how services are valued relative to one another. The conversion factor determines how those relative values become dollars under Medicare.

A specialty can therefore succeed in demonstrating that a particular service deserves a certain relative value while still facing financial pressure because of broader changes to the conversion factor, practice expense methodology, budget neutrality, or other payment policies.

For 2026, Medicare uses two conversion factors for the first time, depending on whether a clinician qualifies as an advanced alternative payment model participant. The 2026 qualifying APM conversion factor is approximately $33.57, while the nonqualifying factor is approximately $33.40. Congress also provided a temporary 2.5 percent payment increase for 2026.

That temporary increase helps explain why provider organizations continue to argue that annual payment stability cannot be solved solely through individual CPT valuations. A perfectly calibrated set of RVUs cannot fully compensate for instability in the dollar multiplier applied to them.

The 2027 Proposal Shows How Fast the Environment Can Shift

The issue is especially timely. CMS released its proposed 2027 Physician Fee Schedule in July 2026. The proposal would reduce the qualifying APM conversion factor to about $33.17 and the nonqualifying factor to about $32.84, partly because the temporary 2.5 percent increase provided for 2026 expires under current law. These amounts are proposed, not final.

Of particular concern to dermatology is a proposed policy affecting situations in which a separately identifiable office or outpatient evaluation and management visit occurs on the same day as a procedure with a global period. CMS has proposed paying the most expensive service at 100 percent and other applicable services at 50 percent.

The American Academy of Dermatology Association estimates that the overall proposed 2027 changes could reduce Medicare payments to dermatologists by roughly 9 percent, with the same-day care proposal and changes involving practice expense methodology among the major drivers.

For insurers, that deserves attention even before the rule is finalized. Significant payment movement can affect provider sentiment, network negotiations, appointment capacity, site-of-service decisions, and willingness to accept certain patient populations. A change that begins as Medicare reimbursement policy can become a broader access and contracting issue.

Why Commercial Carriers Should Pay Attention

Medicare does not set commercial reimbursement rates, and commercial plans have their own contracts, methodologies, benefit designs, and utilization management programs. Still, Medicare's valuation system creates a powerful reference point because the industry shares CPT terminology and commonly evaluates physician services through relative resource concepts.

This can create second-order effects. If Medicare reduces the relative economics of a commonly performed service, a practice may look more closely at procedure mix, staffing, scheduling, locations, payer participation, or contract rates. If several reimbursement pressures arrive at once, access issues can emerge even when the commercial carrier itself made no immediate payment change.

That makes reimbursement policy relevant beyond claims. Network management, actuarial, product, provider relations, medical policy, sales, and benefits consulting teams can all benefit from understanding why physicians are raising concerns about payment sustainability.

Coding, Valuation and Coverage Are Not the Same Thing

One common source of confusion is treating a CPT code, an RVU, and an insurance coverage decision as though they answer the same question. They do not.

A CPT code describes a service. RVUs help describe the relative resources associated with that service. Medicare payment policy converts those values into an allowed payment methodology. A health plan still determines coverage under its benefit structure and medical policies, subject to applicable law and contract terms.

This distinction is particularly important when new technologies or procedures enter clinical practice. Obtaining a code and establishing a relative value can be major milestones, but neither automatically guarantees broad coverage, favorable utilization management, or commercial reimbursement at a particular amount.

The Budget Neutrality Debate Is Becoming an Insurance Story Too

Physician organizations have increasingly focused on Medicare's budget neutrality requirements and the gap between practice costs and physician payment updates. The American Academy of Dermatology Association made protecting Medicare access to physicians its central federal advocacy priority for 2026, including calls for a positive annual inflation adjustment and reforms to budget neutrality.

“Our goal is to stop annual payment cuts.”

The legislative discussion is also evolving. In July 2026, a bipartisan group of senators introduced the Provider Reimbursement Stability Act of 2026, S. 5180, as a companion to House legislation that had advanced unanimously from the House Ways and Means Committee. The proposal would raise the threshold that triggers certain budget neutrality adjustments, incorporate claims-based utilization information, require periodic updates to direct practice expense inputs, and limit year-to-year conversion factor swings.

Whether or not those specific provisions become law, the direction of the debate is significant. Physician groups are increasingly framing Medicare payment stability not simply as a physician income issue, but as an access, capacity, and health system sustainability issue.

What Insurance Professionals Should Watch

• CPT changes: New and revised codes can require rapid claims configuration, pricing, and provider education.

• RVU changes: Shifts in work or practice expense can alter the economics of specific procedures.

• Conversion factors: Broad Medicare payment changes can intensify provider contracting and access pressures.

• Site-of-service effects: Payment methodology can encourage practices to reconsider where services are delivered.

• Federal reform: Budget neutrality and inflation proposals could reshape future physician payment benchmarks.

A Better Conversation With Providers

For carriers, one of the most practical benefits of understanding the RUC is better provider dialogue. When a dermatology practice says a procedure has been revalued, reimbursement has become unsustainable, or a CMS proposal could alter how same-day services are paid, the discussion becomes more productive when both sides understand where those changes originated.

The same is true for agencies and benefits advisers. Employers may experience health care affordability primarily through premiums and renewals, while employees experience it through networks and access. Provider reimbursement sits in the middle of that equation. It affects the supply side of the health care market even when members never see an RVU on an explanation of benefits.

None of this means every physician reimbursement request is automatically justified, or that commercial insurers should simply mirror Medicare. It means that reimbursement should be evaluated with an understanding of the clinical, coding, regulatory, and economic forces behind it.

The Bigger Insurance Takeaway

The RUC may operate deep inside the machinery of physician reimbursement, but its influence does not stay there. Its work feeds into a Medicare payment framework that provides important signals to physicians, health systems, carriers, consultants, and other participants throughout the insurance market.

For dermatology, where office visits and procedures frequently intersect, small changes in coding or valuation can have significant operational consequences. The current debate over 2027 Medicare payments demonstrates how quickly those technical changes can become questions about practice sustainability and patient access.

Insurance organizations do not need every network manager, producer, or agency executive to become a CPT coding expert. They do benefit, however, from knowing what lies behind the numbers. Understanding the relationship among CPT codes, RUC recommendations, RVUs, conversion factors, CMS policy, and commercial reimbursement provides a clearer picture of why provider payment changes happen and why those changes can eventually reach far beyond the physician's billing office.