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Surgery

Ambulatory Surgery Center Billing Services

Facility fees, implants, and case costing under control

A surgery centre lives on the difference between what a case costs and what the facility fee returns. Implants and supplies can erase that margin entirely when they are not separately reimbursed. We bill the facility side properly, pursue implant carve-outs your contracts allow, and give you case-level costing so you know which procedures are worth the theatre time.

  • Faster reimbursements
  • Higher collections
  • Lower denials
  • HIPAA compliant
  • Certified coders
  • Dedicated billing experts
OVERVIEW

What Is Ambulatory Surgery Center Billing?

Ambulatory surgery centre billing covers the facility side of outpatient surgery. It pays for the theatre, staff, equipment, and supplies, and it is entirely separate from the surgeon's professional claim for the same case.

The facility fee is generally a packaged amount tied to the procedure performed. That package assumes a typical cost profile, which works well for routine cases and poorly for anything involving expensive implants or unusual supply use.

So the business question is not whether claims get paid. It is whether the payment covered the case. Centres that do not measure cost against reimbursement per procedure can run profitable overall while losing money on specific case types every week.

WHAT MAKES IT COMPLEX

Why Surgery Centre Billing Is a Margin Question

Your claims may pay perfectly and the centre can still lose money on the case.

  • Facility fees are packaged

    One amount covers theatre, staff, and most supplies, regardless of what a specific case actually consumed.

  • Implants may be carved out

    Some contracts reimburse high-cost implants separately, but only when billed and documented correctly.

  • Multiple procedures get reduced

    Facility payment for additional procedures in the same session is reduced by set percentages.

  • Contracts drive everything

    Two centres performing identical cases can see very different margins based purely on their agreements.

WHERE REVENUE LEAKS

Six Surgery Centre Margin Killers and Their Fixes

Each one shows up as margin loss rather than a denial.

Unrecovered Implant Cost

High-cost implants absorbed into the facility fee when the contract allowed separate payment.

The fixCheck each contract for carve-out terms and bill implants with invoice support.

No Case-Level Costing

Procedures performed at a loss because cost against reimbursement is never measured.

The fixTrack supply and implant cost per case against the facility payment received.

Excess Procedure Reductions

Additional procedures reduced beyond what the contract permits, absorbed as adjustments.

The fixPost line by line against loaded facility rates and appeal every variance.

Facility and Surgeon Mismatch

The centre and surgeon submitting inconsistent codes for the same case, prompting review.

The fixReconcile both claims against the operative report before either transmits.

Out-of-Network Surprises

Cases performed without confirming network status, leaving large unexpected balances.

The fixVerify network status per payer and per surgeon before the case is booked.

Missed Authorisation Scope

Approval obtained for one procedure while additional work was performed in theatre.

The fixCompare the operative report against the authorised scope before billing.

HOW WE WORK

How We Bill an ASC Case

Facility-side billing, coordinated with the surgeon's claim.

  1. Verify and Authorise

    Network status and authorisation are confirmed per payer and surgeon before the case is scheduled.

  2. Capture Case Costs

    Implants and high-cost supplies are recorded per case with invoice documentation retained.

  3. Code the Facility Claim

    The facility claim is built from the operative report and reconciled against the surgeon's coding.

  4. Pursue Carve-Outs

    Implants eligible for separate reimbursement under your contracts are billed with supporting invoices.

  5. Post Against Contract

    Payments post line by line against loaded facility rates so reductions beyond contract are visible.

  6. Report Case Margin

    Reporting shows reimbursement against recorded cost by procedure, so unprofitable cases are identified.

WHAT'S INCLUDED

What Your Surgery Centre Engagement Covers

Implant recovery and case costing included.

  • Network Status Verification
  • Case Authorization Review
  • Facility Claim Coding
  • Implant Carve-Out Recovery
  • Supply Cost Capture
  • Underpayment Appeals
  • Charge Entry
  • Claims Submission
  • Denial Management
  • AR Follow-Up
  • Facility Credentialing
  • Case Margin Reporting
CODING FRAMEWORK

Surgery Centre Coding Essentials

A general view of how surgery centre billing is structured.

Key CPT Ranges

RangeWhat It Covers
29800–29999Arthroscopic procedures commonly performed in ASCs
43235–45398Endoscopy performed in an ambulatory setting
66821–66984Cataract and ophthalmic procedures
62320–64636Pain management injections and ablation
49491–49659Hernia repair by type and approach
42820–42836Tonsillectomy and adenoidectomy

Common ICD-10 Groups

GroupClinical Focus
M17Knee osteoarthritis
H25–H26Cataract requiring surgery
K40–K46Hernias by site
M54Spinal pain treated by injection
K57Diverticular disease requiring endoscopy
J35Chronic tonsil and adenoid disease

What Documentation Has To Show

  • The implant used, with manufacturer, model, and invoice cost.
  • Every procedure performed, matched to the surgeon's operative report.
  • The authorised scope compared against what was actually done.
  • High-cost supplies consumed during the case.

Note: This is general education on how ambulatory surgery centers coding is organised. Code sets and payer policies change often. Always check the current code set and the payer's active policy for the date of service.

PLATFORM EXPERIENCE

Software We Bill Surgery Centres In

We work inside the system your centre already runs.

  • Epic logo
  • Cerner logo
  • MEDITECH logo
  • athenahealth logo
  • AdvancedMD logo
  • CollaborateMD logo
SPECIALTY FAQS

ASC Billing Answers for Administrators

Practical answers for surgery centre administrators.

Check each contract for carve-out terms, then bill with invoice documentation attached. Some agreements pay high-cost implants above the facility fee, others package everything. Centres frequently absorb implant cost because nobody checked whether the contract allowed recovery. We review your agreements and pursue every carve-out available, which can transform the margin on device-heavy cases.

Because the packaged facility fee assumes a typical cost profile and some cases are far from typical. Without per-case costing you cannot see which ones. We track implant and supply cost against the payment received by procedure, which usually identifies two or three case types that should be renegotiated or reconsidered entirely.

They should be consistent, yes. When the centre and the surgeon submit different codes or dates for the same case, payers flag both claims for review and payment slows on each. We reconcile the facility claim against the surgeon's coding before either transmits, which removes a review category that otherwise delays your highest-value cases.

Additional procedures performed in the same session are paid at reduced percentages of their normal rate. That is expected. The problem is when the reduction applied exceeds what your contract permits, and the difference vanishes into a contractual adjustment. Line-level posting against loaded rates exposes it so we can appeal the variance.

Verify network status per payer and per surgeon before booking, not after. A surgeon may be in network while your centre is not, or the reverse, and either situation leaves large unexpected balances. Patients react badly to surprise facility bills. Confirming status at scheduling lets you make an informed decision before theatre time is committed.

Compare the operative report against the authorised scope before billing. Surgeons frequently do more than planned once they are operating, and the facility claim may exceed what was approved. Some payers accept a post-service notification, others do not. Catching it before submission gives you options, whereas a denial after the fact rarely does.

By recording implants and high-cost items against the case at the time of use, rather than from a monthly stock reconciliation. Theatre staff already document what was opened, so capturing cost alongside it adds very little work. That single habit makes case-level margin reporting possible, which is the most useful management report a surgery centre can have.

Yes. The centre itself must be enrolled and contracted with each payer, separately from the surgeons who operate there. A surgeon being in network does not make your facility in network. Missing or lapsed facility enrollment produces denials on every case for that payer, which is expensive and easy to overlook.

It is a third separate claim. The anesthetist bills their own service using time and base units, independently of both your facility fee and the surgeon's professional charge. Confusion arises when centres assume anesthesia is included in their package. We keep the three tracks distinct so none of them collide at the payer.

Case margin by procedure, not just collections. You need reimbursement measured against recorded cost so unprofitable case types are visible. You should also see payer-level performance, because the same procedure can be profitable under one contract and loss-making under another. That view is what drives contract negotiations that actually change the numbers.

Find Out Which Cases Actually Make Money

We measure your facility reimbursement against recorded case cost by procedure and show you where the margin is disappearing.

Schedule an RCM Consultation

Submit your details and our AAPC-certified billing auditors will coordinate a free operational audit for your clinic.

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