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Anesthesia Billing

Anesthesiology Medical Billing Services

Anesthesia billing is unlike any other specialty: base units, time units, and concurrency modifiers decide payment down to the minute. Our coders specialize in anesthesia so you capture every unit you earn.

Get a Free Anesthesiology Billing Audit

We handle anesthesiology billing end to end, base and time-unit calculation, concurrency and medical-direction modifiers, submission, and denial follow-up. Because anesthesia reimbursement is a formula of base units plus time plus modifiers, precise calculation is the entire game.

Anesthesiology billing we handle

  • Base + time units. Accurate ASA base units and time-unit calculation.
  • Medical direction & supervision. QK, QY, QX, AD, QZ modifiers applied correctly.
  • Concurrency tracking. Overlapping cases billed per medical-direction rules.
  • CRNA billing. Independent and directed CRNA services.
  • MAC anesthesia. Monitored anesthesia care with QS and payer-required modifiers.
  • Obstetric anesthesia. Labor epidurals and cesarean anesthesia with correct time rules.
  • Invasive monitoring. Arterial lines, central lines, and TEE billed separately where placed.
  • Qualifying circumstances & physical status. Add-on units captured.
  • Pain procedures. When performed by the anesthesia group.
Real result. A hospital-based anesthesia group was losing revenue to inaccurate time-unit calculations and missing concurrency modifiers. With specialized anesthesia software and rigorous concurrency/base-unit audits, we captured about 15% of previously lost revenue with zero compliance issues in subsequent payer audits.

Why anesthesiology practices lose revenue

The losses are formula-specific: rounding errors in time units, missing or wrong medical-direction modifiers, unbilled qualifying circumstances and physical-status units, and concurrency mistakes when an anesthesiologist directs multiple rooms. A single modifier error changes the payment percentage on the whole case.

What you get with PRMS

Unit precision

Base and time units calculated to the minute, no rounding revenue away.

Modifier accuracy

Medical-direction and concurrency modifiers applied correctly, every case.

Audit-ready

Rigorous concurrency and base-unit audits that survive payer review.

Anesthesiology billing FAQs

How is anesthesia reimbursement calculated?

Anesthesia pay is (base units + time units + modifying units) × a conversion factor, adjusted by medical-direction modifiers. Because it is a formula, small errors in time or modifiers directly reduce payment, which is why specialized anesthesia billing matters.

Do you handle medical direction and concurrency?

Yes. We apply QK, QY, QX, AD, and QZ modifiers based on the direction ratio and track concurrency for overlapping cases so each is billed at the correct percentage.

Do you bill CRNA services?

Yes, both medically directed and independent (QZ) CRNA services, per your practice model and payer rules.

Can you capture qualifying circumstances and physical status?

Yes. Physical-status (P3-P5) and qualifying-circumstance add-on units are commonly missed; we capture them where documented.

Related services & specialties

Explore our full billing, coding & denial management services and provider credentialing, or see other specialties we bill including pain management and more.