Anesthesia is one of the specialties hit hardest by out-of-network underpayment. Unit-based pricing does not translate cleanly into a qualifying payment amount, and that gap is where recoverable money sits.
Anesthesia is priced in units — base units for the procedure, time units, and modifying units — multiplied by a conversion factor. Most other specialties bill a flat fee per code. When a health plan calculates a qualifying payment amount (QPA) for an anesthesia code, it is producing a median contracted rate for a code whose real value depends on case length and patient complexity. A long, high-acuity case and a short, routine one carry the same CPT code and get the same QPA.
Most anesthesia groups do not choose to be out of network. They are hospital-based: the facility contracts with the plan, the anesthesia group does not, and the patient never selects the anesthesiologist. That is exactly the scenario the No Surprises Act was written for. The patient is protected at in-network cost sharing, and the payment fight moves to the plan and the group.
Notice-and-consent waivers do not apply to anesthesia. Ancillary services — anesthesiology, radiology, pathology, neonatology, assistant surgeons — cannot be balance-billed even with patient consent, which also means those claims stay inside the IDR track rather than being negotiated with the patient.
An anesthesia IDR offer that only argues "the QPA is too low" tends to lose. The credible submissions we build use the permitted factors: case acuity and patient complexity, the group's market share and scope of practice, the training and licensure of the provider, and prior contracted rates with that same payer. Time units and ASA physical status are the documentary backbone — they turn an abstract fairness argument into a record the certified entity can act on.
The May 2026 final rule widened batching. Same payer, same or related service codes, consecutive-day items — up to 50 line items in one dispute. For anesthesia groups running high claim volume against a small number of plans, batching is the difference between IDR being economically sensible and not. One entity fee of roughly $268 to $1,173 spread across 50 claims changes the math entirely.
Fee figures reflect the CMS final rule published June 4, 2026 (CMS-9897-F). We re-verify the fee schedule each filing cycle.
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