— Lab Billing & Revenue Cycle Management

Lab Billing That Recovers Every Diagnostic Dollar

Clinical laboratories face uniquely complex billing challenges — PAMA-compliant pricing, LOINC coding, NPI-level specimen traceability, and payer-specific medical necessity requirements. Horizon Revenue Group specializes in lab billing to maximize collections and eliminate costly denials.

HIPAA Compliant

CLIA-Certified Coders

350+ Labs Served

24-Hour Claim Submission

— What Is Lab Billing

The Most Regulation-Dense Billing in Healthcare — Mastered

Lab billing differs fundamentally from standard medical billing. Your laboratory must navigate PAMA-mandated fee schedules, Local Coverage Determinations (LCDs), medical necessity ABN requirements, LOINC-to-CPT code mapping, specimen source documentation, and ordering provider NPI validation — all while maintaining CLIA compliance on every claim submitted.

Horizon Revenue Group's laboratory billing specialists bring deep expertise in CPT and HCPCS lab code assignment, Medicare CLFS fee schedule application, advance beneficiary notice workflows, and payer-specific LCD policy compliance. We don't apply general medical billing practices to your lab — we engineer a revenue cycle built specifically for diagnostic and clinical laboratory environments.

● PAMA Fee Schedule

● LCD Compliance

● Molecular & Genetic Coding

● ABN Management

— The Lab Billing Challenge

Why Lab Revenue Leaks Are Uniquely Costly

Laboratories operating without specialized billing expertise routinely lose 25–35% of collectable revenue to medical necessity denials, incorrect PAMA pricing, improper LCD compliance, and unbundled test coding.

Medical Necessity & LCD Non-Compliance

Tests ordered without supporting ICD-10 diagnosis codes that satisfy Local Coverage Determinations result in blanket Medicare denials — often representing the largest single source of preventable lab revenue loss.

PAMA Pricing & Fee Schedule Errors

Incorrectly applied PAMA-mandated Clinical Laboratory Fee Schedule rates — or failure to update rates with annual CMS revisions — silently erode lab reimbursement on every Medicare claim submitted.

CPT Unbundling & Reflexive Test Coding

Improperly bundled panel codes, missing reflex test modifiers, and incorrect molecular diagnostic tier assignments create audit exposure and leave substantial legitimate revenue on the table.

Missing ABN & Ordering Provider Gaps

Failure to issue timely Advance Beneficiary Notices for non-covered tests — combined with missing or invalid ordering provider NPIs — results in denied claims and unrecoverable patient liability for your laboratory.

— Lab Billing Services

Complete Lab Billing Coverage — Zero Gaps

A fully managed lab billing suite designed around the unique regulatory and operational demands of clinical and reference laboratories.

Medical Necessity & LCD ReviewMedical Necessity & LCD Review

Pre-submission review of every test order against active Medicare Local Coverage Determinations and private payer policies — verifying that diagnosis codes fully satisfy medical necessity requirements before the claim is filed.

CPT & HCPCS Lab Code Assignment

Certified laboratory coders assign precise CPT Category I and HCPCS Level II codes — including molecular diagnostic tier mapping, panel bundling logic, and reflex test coding — to capture full allowable reimbursement on every test.

PAMA Fee Schedule Management

Precise application of CMS Clinical Laboratory Fee Schedule rates under PAMA regulations, updated annually with each rate revision cycle — ensuring your Medicare claims never underbill or expose the lab to PAMA audit risk.

Electronic Claim Submission & Scrubbing

Lab claims scrubbed against payer-specific edits — including NPI validation, ordering provider verification, specimen source codes, and diagnosis pointer rules — before same-day 837P electronic transmission to all payers.

Lab Denial Management & Appeals

Rapid denial analysis within 48 hours for all lab claim denials. Targeted appeals with requisition documentation, ordering provider attestations, and payer-specific LCD compliance evidence — with escalation protocols that recover revenue others write off.

ABN Management & Patient Billing

Systematic Advance Beneficiary Notice issuance workflows for all non-covered and frequency-limited tests, patient liability estimation, clear itemized lab statements, and online payment portals to accelerate out-of-pocket collections.

Lab Credentialing & Enrollment

Full laboratory credentialing and re-enrollment with Medicare, Medicaid, and all commercial payers — including CLIA certificate verification, PECOS enrollment, payer-specific lab agreements, and in-network contract negotiation.

A/R Follow-Up & Collections

Proactive follow-up on all outstanding lab claims, systematic recovery of aged balances 30–120+ days, and coordination with ordering providers to obtain missing documentation for stalled claims — minimizing write-offs.

Lab Analytics & Compliance Reporting

Real-time dashboards with test mix analysis, payer reimbursement benchmarking, PAMA rate impact reporting, ordering provider performance tracking, and CLIA compliance monitoring to keep your lab audit-ready at all times.

— Key Benefits

Measurable Outcomes for Clinical Laboratories

Lab clients partnering with Horizon see meaningful improvements across test reimbursement, denial rates, and days in A/R — consistently within the first 90 days of engagement.

Average Lab Revenue Increase

0 %

Denial Rate (vs 32% avg)

0 %

Faster A/R Collection

0 %

Lab Specialty Verticals

0 +

Maximized Test Reimbursement

Lab-specialized coders ensure every CPT code, molecular diagnostic tier, and reflex test is accurately mapped and billed — recovering the legitimate revenue that generic billers routinely fail to capture.

Eliminated Medical Necessity Denials

Proactive LCD review, ICD-10 diagnosis validation, and ABN issuance workflows prevent the medical necessity denials that most labs treat as unavoidable — turning them into collected revenue.

Full PAMA & Regulatory Compliance

Annual PAMA fee schedule updates, CLIA certification tracking, and ongoing payer policy monitoring built directly into your billing program — keeping your lab compliant without added administrative burden.

Reduced Audit Exposure

Proper molecular diagnostic tier assignment, correct panel bundling, and defensible documentation practices reduce your lab's exposure to OIG and payer audit activity — protecting long-term revenue integrity.

— Our Lab Billing Process

A Structured Workflow Built for High Test Volume

Our proven 5-step lab billing workflow is engineered to handle large test volumes with speed, coding accuracy, and full regulatory compliance.

1

Order Validation & Eligibility

Insurance verification, ordering provider NPI validation, and real-time eligibility check for every requisition before claim submission.

2

LCD & Medical Necessity Review

Every test is cross-checked against applicable LCD policies and payer medical necessity criteria — with ABN issuance triggered for non-covered tests.

3

CPT Coding & Claim Build

Precise CPT assignment, PAMA fee schedule mapping, diagnosis pointer validation, and claim construction with all required attachments and modifiers.

4

Claim Submission & Tracking

Scrubbed claims submitted within 24 hours of result finalization. Rejections resolved and resubmitted within 48 hours with full audit trail documentation.

5

Payment Posting & Follow-Up

Same-day ERA posting, denial appeal management, A/R follow-up, and monthly lab performance reporting delivered by your dedicated account manager.

— Why Choose Horizon for Lab Billing

Lab Expertise That Generic Billing Companies Don't Have

Most billing companies apply standard physician billing logic to laboratory claims. That gap costs your lab tens of thousands per month. Horizon is purpose-built for the complexity of clinical and reference laboratory billing.

CLIA-Credentialed Lab Coding Specialists

Our coders hold AAPC Certified Professional Coder (CPC) and laboratory-specific credentials — with deep expertise across molecular diagnostics, toxicology, anatomic pathology, and clinical chemistry.

Up-to-Date PAMA & LCD Policy Intelligence

We maintain a continuously updated library of Medicare LCD policies, PAMA fee schedule changes, and private payer lab coverage rules — so your claims are always coded and priced correctly from day one.

LIS & EHR System Integration

Seamless integration with your Laboratory Information System and EHR — enabling automated charge capture from resulted tests, eliminating manual data entry errors, and accelerating claim submission timelines.

Proactive OIG & Audit Risk Management

We monitor OIG Work Plans, CMS Transmittals, and payer prepayment audit trends affecting laboratories — adjusting your billing program proactively to minimize audit exposure and protect long-term Medicare certification.

How is lab billing different from standard physician or facility billing?

Lab billing requires specialized CPT coding for diagnostic tests — including molecular diagnostic tier assignment, panel bundling rules, and reflex test modifiers — that differ entirely from surgical or E&M physician coding. It also demands PAMA fee schedule compliance, Local Coverage Determination adherence, CLIA certification verification, and ordering provider NPI validation on every claim. Applying the wrong billing logic to a laboratory results in chronic denials, audit exposure, and significant revenue loss.

What is PAMA and how does it affect our lab reimbursement?

The Protecting Access to Medicare Act (PAMA) reformed the Medicare Clinical Laboratory Fee Schedule by basing payments on weighted median private payer rates. Labs must bill Medicare at or below the applicable PAMA rate for each test CPT code. Rates are updated periodically by CMS — and labs billing above the allowed PAMA rate face automatic down-adjudication. Horizon ensures your PAMA rates are always current and correctly applied to every Medicare lab claim submitted.

How do you handle molecular and genetic test billing?

Molecular diagnostic and genetic test billing is among the most complex in laboratory medicine — requiring correct Tier 1, Tier 2, or unlisted code assignment, proper multi-analyte algorithm coding, and payer-specific prior authorization for genomic testing. Our molecular specialists handle MAAA coding, hereditary cancer panel billing, pharmacogenomic test coding, and the proprietary laboratory analysis (PLA) code framework — ensuring these high-value tests are billed correctly and fully reimbursed.

Do you provide support for CMS ASCQR quality reporting requirements?

Yes. Horizon manages the complete ABN workflow — identifying tests subject to frequency limitations, medical necessity requirements, or non-coverage policies, triggering timely ABN issuance to patients, and properly applying the GA, GX, GY, and GZ modifiers on claims. This protects your lab from writing off non-covered test costs that should rightfully be collected from patients or alternative payers.

How quickly can Horizon onboard our laboratory and begin billing?

Most clinical and reference laboratories are fully onboarded within 2–4 weeks. Our implementation team handles LIS integration, payer enrollment verification, CLIA credential review, and staff training — with zero disruption to your daily test reporting operations. We run parallel billing during transition to ensure no revenue gap occurs during cutover to Horizon's billing platform.

— FAQs

Lab Billing Questions — Answered

Clear, data-backed answers to the financial questions your CFO cares about most.

— Start Today

Ready to Maximize Your Laboratory's Revenue?

Get a free, no-obligation lab revenue audit and discover exactly how much your clinical laboratory could be recovering.

(207) 987-0634

contact.horizonrevenue@gmail.com

1954 PLACENTIA AVE COSTA MESA, CA 92627