RVUs Explained: How a CPT Code Becomes a Payment
Every Medicare payment is three RVU components, adjusted for geography, times a dollar figure. Once you can see the formula, you can predict revenue, read a contract, and understand exactly why a code pays what it pays.
The formula, once and for all
That's the entire Medicare Physician Fee Schedule in one line, straight from CMS and the AMA. Three RVU components, each nudged by its own geographic index, summed into a total RVU, then multiplied by the year's dollar-per-RVU conversion factor. Everything else — modifiers, budget neutrality, the site-of-service adjustment — is a variation on this core.
The three components (and roughly what they're worth)
Work RVU (wRVU) — the physician's time, skill, and effort. It's the biggest slice (around half of a typical code's total) and the number most compensation contracts are built on, because it isolates provider productivity from overhead. Practice Expense RVU (PE) — the overhead: rent, clinical and admin staff, supplies, equipment. It's nearly as large as work and is the component that changes with the site of service. Malpractice RVU (MP) — the liability-insurance slice, usually just a few percent of the total but much higher for high-risk procedural specialties.
CMS assigns all three to every code as national averages under the Resource-Based Relative Value Scale (RBRVS), and reviews them annually. For 2026, a notable twist: an efficiency adjustment cut work RVUs and intra-service time by 2.5% for most non-time-based codes (procedures, imaging), while time-based codes like office visits were spared — so two codes with the same 2025 total RVU can diverge in 2026.
GPCI: why the same code pays more in San Francisco
The Geographic Practice Cost Index adjusts for the fact that it costs more to run a practice in some places than others. There are three GPCIs per locality — one each for work, practice expense, and malpractice — across roughly 89 Medicare localities, and each one adjusts only its matching RVU component. That separation matters: a locality can have very high practice-expense costs and low malpractice costs at the same time (Santa Clara County, for instance, pairs one of the highest PE indices in the country with one of the lowest malpractice indices). A single blended geographic multiplier would hide that; three separate GPCIs capture it.
Practical upshot: always use the GPCI for your actual locality. Estimating with national averages or a neighboring area's values is a common source of revenue-projection errors, and the urban-to-rural spread on the same code can exceed 25%.
A worked example
Take a level-3 established office visit with illustrative national values of Work 1.30, non-facility PE 1.46, and MP 0.10 — a total of 2.86 RVUs. In a locality where the GPCIs sit near 1.0, the geographic step barely moves it, so the payment is roughly 2.86 × the conversion factor. At the 2026 non-APM factor of $33.4009, that's about $95.53; at the APM factor of $33.5675, about $96.00. Move that same visit to a high-cost metro and the GPCIs push each component up before the multiply, raising the payment; move it to a rural locality and it falls.
(RVU values here are illustrative for teaching the math — always pull the current figures for a specific code and locality from the CMS Physician Fee Schedule before relying on them.)
Facility vs non-facility, and why it echoes your POS code
Only one component changes with the site of service: the practice expense RVU. When you perform a service in your own office (non-facility), you carry the overhead, so CMS uses the higher non-facility PE RVU. In a hospital or ASC (facility), the facility bills separately for its costs, so the lower facility PE RVU applies. Same code, same work and malpractice RVUs — different practice-expense RVU, different payment.
This is the exact mechanism behind the telehealth payment quirk: POS 10 (patient home) maps to the non-facility rate and POS 02 to the facility rate. If that connection is useful, the place-of-service guide works through it, and the E/M coding guide shows how visit level (via RVUs) turns into the dollars you bill.
The conversion factor: one number, big swings
The conversion factor (CF) is the dollars-per-RVU multiplier CMS sets annually. 2026 is the first year with two: $33.5675 for qualifying APM participants and $33.4009 for everyone else, both up from 2025's $32.35. The increases combine a temporary 2.5% bump from H.R.1, small permanent MACRA updates (0.75% for APM participants, 0.25% for others), and a 0.49% budget-neutrality adjustment. For context, the CF was $33.29 in 2024 and $34.61 in 2022 — it moves every year, so a projection built on last year's number is already wrong.
Budget neutrality is why: by law, changes to RVUs across the schedule can't blow up total Medicare spending, so when CMS raises some RVUs it adjusts the CF to keep the whole system balanced. That's how a code's RVUs can rise while the CF falls, or vice versa. And because most commercial contracts are written as a percentage of Medicare, this one number ripples across nearly all of your payers, not just Medicare.
Know what every code should pay — then make sure it does
Understanding RVUs is step one; catching the claims that pay below their RVU value is step two. That's what our audits and RCM work do.
Get a free billing audit See revenue cycle management