Anesthesia Billing Services

Anesthesia is the one specialty Medicare doesn't pay on RVUs — it runs on its own unit-based formula, its own separate conversion factor, and a set of care-team modifiers that decide whether you collect 100% of a case or 50%. Get the base units, the minute-accurate time, the physical-status modifiers, or the medical-direction attestation wrong, and the money either shrinks or triggers an audit. Our anesthesia billing services exist to make every one of those variables correct before the claim goes out.

247 Medical Billing Services runs the full revenue cycle for anesthesiology groups, CRNA practices, and pain physicians — personally performed, medical direction, MAC, OB, and out-of-network claims — so first-pass payment climbs, your days in A/R fall, and your clinicians stop refereeing modifier questions between cases.

20+ Years in Medical Billing	99% Clean-Claim Rate	Under 25 Days in A/R
Billing since 2005	Claims built to pass on the first submission	Cash in weeks, not quarters

 

20+ years (since 2005) · HIPAA-compliant · SOC 2 Type II · HBMA member · AAPC/AHIMA-certified anesthesia coders

The results anesthesia groups get with 247MBS

Metric	247MBS	Industry
First-pass clean-claim rate	99%	~95%
Net collection rate	99%	~95%
Average days in A/R	under 25	40–47
Denial recovery / appeal win rate	90%	~50%
Denial reduction	up to 40%	—

Our free audit runs these against your own remits — showing where units are slipping, how much of your aging A/R is still recoverable, and what a specialist anesthesia billing services company expects to bring back.

What makes anesthesia billing different

Most billing companies treat anesthesia like any other claim. It isn't. Payment is built from a formula, not a fee:

• The unit formula — (base units + time units + modifying units) × the anesthesia conversion factor. Miss a base unit on the ASA Crosswalk, round the minutes, or drop a payable physical-status unit, and you underbill every case.
• The care-team modifier decides the money — AA (personally performed, 100%), QK/QY with QX (medical direction, split 50/50), QZ (independent CRNA, 100%), or AD (medical supervision). Code the role wrong and you either leave half the case unpaid or invite a takeback.
• Medical direction is the #1 audit target — the seven TEFRA conditions and the 1:4 concurrency cap are conditions of payment, not paperwork. They have to be documented on every directed case.
• Out-of-network is a way of life — anesthesia is one of the specialties the No Surprises Act reshaped most, so QPA disputes and IDR deadlines are part of routine collections.

Handling all of this is exactly what professional anesthesia billing services are for.

Our anesthesia billing services

Everything it takes to move an anesthesia claim from the record to paid, run by one certified team:

• Anesthesia coding & the ASA Crosswalk — surgical procedures translated to the correct 00100–01999 code, one code (highest base) per session, with physical-status and qualifying-circumstance units captured where the payer pays them.
• Care-team modifier & TEFRA compliance — AA, QK, QY, QX, QZ, and AD applied to the actual staffing, with the seven medical-direction conditions and the 1:4 cap documented.
• Eligibility & benefit verification — coverage, network status, and MAC medical-necessity rules confirmed before the case.
• Charge capture & clean-claim submission — minute-accurate time reconciled to the anesthesia record/AIMS, scrubbed and filed within 24 hours.
• Denial management & appeals — worked to root cause, including QPA disputes and No Surprises Act IDR filed on deadline.
• A/R recovery — aged claims chased across Medicare, commercial, and out-of-network payers.
• Credentialing & payer enrollment — physicians, CRNAs, and AAs enrolled and re-credentialed so nothing rejects on eligibility.

Need anesthesia billing and coding services under one roof? That's the model — certified coders and billers on the same team, not handed between vendors.

How anesthesia payment actually works

We manage every variable in the formula so each case is paid to its full value:

Formula component	What it is	What we manage
Base units	Fixed value per anesthesia CPT (00100–01999), set by the ASA Crosswalk	Correct crosswalk, highest-base rule on multi-procedure sessions
Time units	The 15-minute convention; continuous-presence start/stop	Minute-accurate capture reconciled to the record/AIMS
Modifying units	Physical status (P3 +1, P4 +2, P5 +3) and qualifying circumstances (99100/99116/99135/99140)	Captured on every payer that reimburses them
Conversion factor	A separate national anesthesia CF ($20.4976 for CY2026), locality-adjusted; commercial CFs differ	Payer- and contract-correct CF on every claim
Care-team modifier	AA / QK+QX / QY / QZ / AD — sets the payment percentage	Role coded to actual staffing, TEFRA documented

Why anesthesia groups choose 247MBS

Bringing us on isn't hiring a general biller who happens to accept anesthesia claims. It's hiring a team that already knows how anesthesia gets paid.

• We protect medical-direction revenue — all seven TEFRA conditions and the concurrency cap documented, so QK/QY cases hold at the 50/50 split instead of downgrading to supervision.
• We defend your time units — billed time reconciled to the anesthesia record and AIMS timestamps, never rounded or padded, so time-unit denials disappear.
• We win the MAC medical-necessity fight — MAC for GI endoscopy documented to each payer's LCD, with QS and G8/G9 applied correctly.
• We collect out-of-network — QPA reviewed, and No Surprises Act IDR opened inside the deadline rather than written off.
• You always see the work — a named account manager and a live dashboard on every account, with no long-term lock-in.

247MBS vs. a general billing company

A generalist learns anesthesia on your claims. We show up already fluent in it.

Capability	General billing company	247MBS
ASA Crosswalk & base-unit coding	❌	✅
Care-team modifiers (AA/QK/QY/QX/QZ/AD)	Limited	✅ Full
Seven TEFRA conditions & 1:4 concurrency	❌	✅
Time reconciled to the anesthesia record/AIMS	❌	✅
MAC medical necessity (GI endoscopy LCDs)	❌	✅
No Surprises Act QPA disputes & IDR	❌	✅
Dedicated account manager	Sometimes	✅ Always

The anesthesia denials and audit exposure we prevent

Issue	The denial or audit exposure it triggers	How we prevent it
Medical direction (QK/QY) without all seven TEFRA conditions documented	Downgrade to medical supervision (AD) or false-claims exposure	We attest and document all seven conditions and hold the 1:4 cap
Billed time vs. anesthesia record mismatch	Time-unit denial and time-integrity audit	We reconcile every minute to the record/AIMS; continuous presence only
MAC for GI endoscopy without documented necessity	Medical-necessity denial against the payer LCD	We document MAC necessity to the LCD and apply QS/G8/G9 correctly
Wrong ASA Crosswalk / base-unit upcoding	Downcode, recoupment, or unbundling denial	We apply the Crosswalk and report one code (highest base) per session
Out-of-network underpayment (No Surprises Act)	Below-QPA payment written off	We review the QPA and open IDR inside the deadline
Post-op block unbundled without the surgeon's request	59/XU unbundling denial	We bill blocks only with a documented request and correct modifier

Every one of these is preventable at the front end rather than argued after the fact. Get your free anesthesia billing audit and we'll show you which are hitting your remits today.

Who we serve

• Anesthesiology groups — from independent practices to large care-team models across multiple facilities
• CRNA & AA practices — independent (QZ) and medically directed staffing
• Ambulatory surgery centers & office-based anesthesia
• Pain management physicians — interventional and chronic pain overlap (see our pain management billing page)
• OB & hospital-based anesthesia — labor epidurals and the payer-variable time methods they demand

Anesthesia billing FAQ

How do you keep our medical-direction cases from being downgraded?

We document all seven TEFRA conditions — including presence at induction and emergence — on every QK/QY case and enforce the 1:4 concurrency cap, so the 50/50 split holds and there's no supervision downgrade or audit exposure.

Do you handle CRNA and AA billing?

Yes. We code independent CRNA work as QZ (100%) where state scope and Medicare opt-out status allow, and medically directed CRNA/AA work as QX under the physician's QK/QY — matched to your actual staffing model.

Can you manage our out-of-network and No Surprises Act claims?

Yes. We review the qualifying payment amount, dispute underpayments, and file the federal IDR inside the deadline rather than writing off the balance — a core part of anesthesia collections today.

Do you offer anesthesia billing and coding together?

We do. Certified anesthesia coders and billers work on one team, so the ASA Crosswalk, modifiers, and claim submission stay aligned instead of being split between vendors.

How fast can our group go live?

Usually a few weeks. We bill from your existing practice-management and AIMS setup, run credentialing and enrollment review in parallel, and assign a dedicated account manager from day one.

Ready to get more of your anesthesia claims paid the first time?

Whether you're an independent anesthesiologist, a large care-team group, or a CRNA practice, our anesthesia billing services protect every unit of every case. Outsource anesthesia billing services to a team that treats the formula, the modifiers, and the No Surprises Act as routine.

Get Your Free Anesthesia Billing Audit  ·  +1 888-502-0537  · 

Compare the best anesthesia billing companies or explore our related pain management billing services.