ASC Billing
ASC Billing Built by Specialists. Not Generalists.
Ambulatory surgery center billing is fundamentally different from physician billing. Revenue codes, implant pass-through, facility-specific modifiers, and ASC payer contracts require specialized expertise that general billing companies do not have.
Know the Difference
Facility Billing vs. Professional Billing
ASC facility billing operates on entirely different rules than professional billing. Understanding these differences is the foundation of ASC revenue cycle success.
| Category | ASC Facility Billing | Professional Billing |
|---|---|---|
| Revenue Code Usage | ASCs use revenue codes (e.g., 0360, 0490, 0710) to classify facility charges. Incorrect revenue codes trigger denials and underpayments across every claim. | Professional billing uses CPT codes only. No revenue code layer exists. |
| Implant Pass-Through | High-cost implants (spine hardware, joint prosthetics) must be billed separately with proper HCPCS codes, invoice documentation, and implant-specific modifiers. Many payers have carve-out policies. | Implant costs are typically included in the surgical global fee for physician billing. |
| Modifier Requirements | ASC-specific modifiers (SG for ASC facility, 73/74 for discontinued procedures) are required. Wrong modifier combinations cause systematic denials. | Standard CPT modifiers apply. ASC-specific modifiers are not used. |
| Multiple Procedure Logic | Facility fees for multiple procedures follow different reduction logic than professional fees. Payers apply varying discount percentages to secondary and tertiary procedures. | Standard CMS multiple procedure payment reduction applies to professional fees. |
Denial Intelligence
Top ASC Denial Patterns We Prevent
Revenue Code Mismatches
Incorrect or missing revenue codes are the single largest source of ASC claim denials. Each payer maps revenue codes differently, and a code that works for one payer may trigger denials with another.
Implant Documentation Failures
Payers deny implant pass-through claims when invoices are missing, HCPCS codes are incorrect, or the implant does not meet the payer's definition of a separately billable device.
Authorization Issues
Prior authorization requirements for ASC procedures vary dramatically by payer and procedure. Missing or expired authorizations remain a top denial category.
Bundling Edits
Payers bundle ASC facility fees into the primary surgical payment when they consider certain services integral to the procedure. CCI edits and payer-specific bundling rules are a constant challenge.
Medical Necessity
Payers question whether procedures performed in the ASC setting were medically necessary or whether a lower-cost setting would have been appropriate.
Our Capabilities
AI-Powered ASC Revenue Cycle Management
Revenue Code Optimization
Our AI maps the correct revenue code configuration for each payer and procedure combination, eliminating the most common source of ASC denials before claims are submitted.
Implant Billing Intelligence
We automate implant pass-through billing with invoice matching, HCPCS validation, and payer-specific carve-out policy compliance to ensure every eligible implant is billed and paid separately.
ASC Compliance Engine
Real-time compliance checks against ASC-specific billing rules, CMS Conditions for Coverage, and payer contract terms to prevent audit exposure and ensure clean claims.
Contract Rate Validation
Every ASC payment is validated against the contracted rate for that payer, procedure, and implant combination. Underpayments are identified and pursued automatically.
Results
ASC Revenue Cycle Results
31%
Net Collection Increase
Average improvement for ASC clients in year one
96%
Clean Claim Rate
First-pass acceptance for ASC facility claims
<38 Days
Days in AR
Average days from submission to payment for ASC claims
$340K
Recovered per ASC
Average annual recovery from underpayments and denials
FAQ
Frequently Asked Questions
How is ASC facility billing different from physician professional billing?
ASC facility billing involves a completely separate layer of complexity from professional billing. Facility claims use revenue codes in addition to CPT codes, require ASC-specific modifiers like the SG modifier, follow different multiple procedure reduction rules, and must comply with implant pass-through billing requirements. Payer contracts for facility fees are structured differently from professional fee schedules. Most importantly, the personnel and expertise needed to bill ASC facility claims correctly are fundamentally different from those needed for physician professional billing.
What is implant pass-through billing and why is it so difficult?
Implant pass-through billing is the process of billing high-cost surgical implants (spine hardware, joint prosthetics, biological materials) separately from the base facility fee. It is difficult because each payer has different rules for what qualifies as a separately billable implant, what documentation is required (manufacturer invoices, HCPCS codes, lot numbers), and what the reimbursement methodology is. Some payers reimburse at invoice cost plus a markup, others at a flat fee, and others deny pass-through entirely for certain implant categories. Getting this wrong means the ASC absorbs the full implant cost.
Do you handle both in-network and out-of-network ASC billing?
Yes. For in-network claims, we ensure every claim is billed correctly against the contracted fee schedule, validate payments against contract terms, and pursue underpayments. For out-of-network claims, we maximize initial billing, negotiate with payers, and pursue IDR recovery under the No Surprises Act when appropriate. Many ASCs have a mix of in-network and out-of-network payers, and our system handles both seamlessly with payer-specific billing strategies for each.
How do you handle ASC-specific payer contracts and fee schedules?
We load every ASC payer contract into our system and validate every payment against the contracted terms. This includes base facility fees, implant carve-out rates, multiple procedure reduction percentages, and any specialty-specific rate provisions. When payments do not match contract terms, our system automatically flags the underpayment and initiates the appeal or reconsideration process. We also provide contract analysis to identify unfavorable terms before renewal.
What types of ASCs do you work with?
We work with single-specialty and multi-specialty ASCs across surgical disciplines including orthopedics, spine, pain management, general surgery, ophthalmology, and gastroenterology. Our platform handles both Medicare-certified and non-Medicare ASCs, and we have specific expertise with high-implant-cost specialties like spine and orthopedics where pass-through billing is critical to profitability.
How quickly can you onboard a new ASC client?
Typical ASC onboarding takes four to six weeks from contract signing to first claim submission. This includes loading payer contracts, mapping revenue codes, configuring implant billing rules, credentialing verification, and system integration. We handle the transition with zero disruption to your revenue cycle, running in parallel with your existing billing during the transition period to ensure no claims fall through the cracks.
Get Started
Your ASC Deserves a Billing Partner That Speaks Facility
Stop losing revenue to revenue code errors, implant billing failures, and generalist billing mistakes. Let us show you what specialist ASC billing can do.