Medicare's 2026 physician update raises the conversion factor 3.26% for non-qualifying clinicians and 3.77% for qualifying alternative-payment-model participants, but neither percentage is a countrywide workers compensation trend selection. State fee schedules borrow different pieces of Medicare, and the temporary 2.5% statutory increase does not carry the same permanence as an underlying price trend (CMS, October 2025).
NCCI concluded the combined 2026 Medicare updates create no significant upward pressure on aggregate workers compensation medical costs. That national conclusion can coexist with material effects in states and service categories whose schedules track Medicare closely.
Key Takeaways
- $33.57 is the 2026 qualifying-participant conversion factor, up 3.77% from 2025.
- $33.40 is the non-qualifying conversion factor, up 3.26%.
- 2.5% temporary increase supplies most of the 2026 upward move and separates a statutory shock from recurring trend.
- 40% of WC medical costs are physician services in NCCI's countrywide framing, giving the update reach without making it universal.
- 2.6% facility and about 2.0% DMEPOS updates show why one conversion factor cannot represent the entire medical basket.
What CMS Changed
CMS created two physician conversion factors for 2026. The qualifying-participant factor of $33.57 reflects a 0.75% statutory update, while the $33.40 non-qualifying factor reflects 0.25%. Both also incorporate the temporary 2.5% increase and a positive adjustment associated with changes elsewhere in the fee schedule.
| Component | 2026 change | WC interpretation |
|---|---|---|
| QP physician factor | $33.57, +3.77% | Applies only where the state schedule imports it |
| Non-QP physician factor | $33.40, +3.26% | Different statutory update |
| Temporary statutory boost | +2.5% | Nonrecurring unless extended |
| Facility market basket | About +2.6% | Separate service basket |
| DMEPOS | About +2.0% | Separate index and utilization mix |
The conversion factor is only one multiplier. Relative value units redistribute payment among evaluation and management, surgical and other services. CMS also finalized an efficiency adjustment that changes work RVUs for many non-time-based services (CMS final-rule files, 2025). Two workers compensation books with the same state factor can therefore experience different unit-cost changes because their procedure mixes differ.
From Medicare Update to WC Trend
The clean actuarial bridge is a weighted service model, not a single scalar. Each state-service cell needs its own Medicare linkage, conversion-factor change, RVU effect, state multiplier and utilization weight. A state with a fixed dollar schedule may receive no immediate effect. A state that rebases directly to Medicare may receive nearly the full change.
Physician services account for roughly 40% of countrywide workers compensation medical cost in NCCI's analysis (NCCI, August 2026). Even a full 3.3% pass-through on that share contributes about 1.3% before offsetting mix effects. Facility and pharmacy costs follow other mechanisms.
The temporary 2.5% component creates a basis issue. Treating the full 2026 increase as recurring trend compounds a one-year legislative step indefinitely. Removing it mechanically in 2027 creates the opposite risk if Congress extends or replaces the provision. The rate model needs a level adjustment and a trend assumption as separate entries.
Utilization can dominate the price signal. A richer evaluation-and-management payment may change provider coding or service intensity, while surgical RVU reductions can shift the mix without reducing total episode cost. The fee schedule controls allowed price; it does not control the number of visits, procedures or providers selected.
The Temporary Increase Distorts Development
Calendar-year 2026 payments will enter accident-year triangles across claims from several origin years. The statutory increase therefore appears partly as severity trend and partly as development, depending on when services occur. A reserving analysis that compares paid medical emergence with older diagonals can attribute the fee step to claim maturation.
State implementation timing adds another layer. Some schedules adopt CMS changes immediately, others after rulemaking, and some use Medicare only as a reference. A countrywide average blends those effective dates and dampens the peaks. That is useful for an industry outlook and dangerous as a state selection.
NCCI's “not significant” aggregate conclusion is mathematically compatible with local disruption. Forty percent exposure to physician services, multiplied by a temporary increase and diluted across unlike state rules, produces a modest national mean. The tails remain in the states and procedure codes where Medicare is copied most directly.