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Every page on unlimitedsystems.com: products, specialties, solutions, integrations, and the full resource library. Pages tagged Coming Soon are planned additions that follow our existing patterns and close content gaps.

Unlimited Clearinghouse

Who We Serve

Solutions tailored to organization types and buyer roles.

Practice Management Software for Startup PracticesMedical Billing Software for Small Medical PracticesRCM Software for Medium to Large Medical GroupsEnterprise Revenue Cycle Software for Health SystemsFQHC Billing Software for Federally Qualified Health CentersSoftware for Member-centric Care OrganizationsSoftware for Healthcare Practice ManagersSoftware for Healthcare CFOsSoftware for Healthcare CTOs & IT DirectorsSoftware for Physicians & Clinical LeadersSoftware for Medical Billing & RCM TeamsBilling Software for Ambulatory Surgery CentersRCM Software for Urgent Care CentersIPA Billing Software for Independent Physician AssociationsSpecialty Billing Software for Hospital-Employed PracticesBilling Software for Telehealth ProvidersRevenue Cycle Software for HospitalsPractice Management Software for Independent PracticesPractice Management Software for Multi-Location PracticesBilling Software for Outpatient ClinicsRCM Software for Provider NetworksWhite-Label Billing Software for RCM Service ProvidersSoftware for Practice Office ManagersSoftware for Medical Coding & HIM TeamsSoftware for Revenue Cycle DirectorsSoftware for Healthcare Compliance OfficersSoftware for Healthcare IT DirectorsAR Software for Accounts Receivable ManagersSoftware for Healthcare Chief Operating OfficersCredentialing Software for Credentialing ManagersSoftware for Medical Billing ManagersSoftware for Healthcare Operations DirectorsPatient Access Software for Patient Access DirectorsSoftware for Revenue Cycle Managers

Specialty Solutions by Use Case

Integrations

Certified EHR, oncology platform, and clearinghouse connections.

EpicEpic BeaconAthenahealtheClinicalWorksCerner MillenniumNextGen HealthcareAllscripts (Veradigm)Varian ARIAElekta MOSAIQHL7 & FHIR InteroperabilityFlatiron OncoEMRComing SoonGreenway HealthComing SoonModMedComing SoonTebra (Kareo)Coming SoonWaystarComing Soon

Specialty Solution Pages

Each specialty's dedicated solution pages, from patient intake and scheduling through payment posting, analytics and value-based care.

Oncology▾
Allergy & Immunology▾
Behavioral Health▾
Cardiology▾
Dermatology▾
Diagnostic Imaging▾
Endocrinology▾
Gastroenterology▾
Infectious Disease▾
Infusion Services▾
Multi-Specialty▾
Nephrology▾
Neurology▾
Neurosurgery▾
OB/GYN▾
Ophthalmology▾
Orthopedics▾
Rheumatology▾
Urology▾

Specialty Software Pages

High-intent per-specialty software landing pages (e.g. “Oncology Software”), a dedicated SEO pattern separate from the specialty solution hubs above.

Oncology SoftwareComing SoonGastroenterology SoftwareComing SoonNeurology SoftwareComing SoonNeurosurgery SoftwareComing SoonUrology SoftwareComing SoonRheumatology SoftwareComing SoonOphthalmology SoftwareComing SoonEndocrinology SoftwareComing SoonCardiology SoftwareComing SoonDermatology SoftwareComing SoonAllergy & Immunology SoftwareComing SoonDiagnostic Imaging SoftwareComing SoonRadiology SoftwareComing SoonPulmonology SoftwareComing SoonPodiatry SoftwareComing SoonPsychiatry SoftwareComing SoonOtolaryngology SoftwareComing SoonVascular Surgery SoftwareComing SoonVascular Medicine SoftwareComing SoonHepatology SoftwareComing SoonChiropractic SoftwareComing SoonOptometry SoftwareComing SoonSleep Medicine SoftwareComing SoonBehavioral & Mental Health SoftwareComing SoonPhysical Medicine & Rehab SoftwareComing SoonAmbulatory Surgery Center SoftwareComing SoonMulti-Specialty SoftwareComing Soon

Comparison Guides

Head-to-head competitor and category comparison pages, bottom-of-funnel SEO for buyers evaluating alternatives.

Unlimited vs. WaystarComing SoonUnlimited vs. R1 RCMComing SoonUnlimited vs. athenahealthComing SoonUnlimited vs. FinThriveComing SoonUnlimited vs. AKASAComing SoonUnlimited vs. CareCloudComing SoonUnlimited vs. AdvancedMDComing SoonUnlimited vs. NextGenComing SoonUnlimited vs. eClinicalWorksComing SoonUnlimited vs. EpicComing SoonUnlimited vs. Tebra (Kareo)Coming SoonUnlimited vs. Change HealthcareComing SoonUnlimited vs. Experian HealthComing SoonUnlimited vs. Greenway HealthComing SoonUnlimited vs. ModMedComing SoonUnlimited vs. DrChronoComing SoonBest Epic AlternativesComing SoonBest athenahealth AlternativesComing SoonBest RCM Software AlternativesComing Soon

More Resources

Calculators, tours, e-books, and the newsletter.

RCM Glossary

Plain-language definitions for 459 revenue cycle terms, each with its own page.

Browse all 459 glossary terms▾
277CA (Claim Acknowledgement)340B Drug Pricing Program999 AcknowledgementABN (Advance Beneficiary Notice of Noncoverage)Accelerated and Advance Payments (AAP)ACO (Accountable Care Organization)AdjudicationAdjustment / Write-OffAdvance Care Planning (ACP)Aging BucketsAllowed AmountAlternative Payment Model (APM)Ambulatory Surgery Center (ASC) BillingAnesthesia Base UnitsAnesthesia Time UnitsAnnual Wellness Visit (AWV)Anti-Kickback StatuteAPC (Ambulatory Payment Classification)API (Application Programming Interface)AppealAppeal Levels (Medicare)Appeal Overturn RateAR Days (Accounts Receivable Days)ASC Payment GroupASC X12ASP Pricing FileAssignment of Benefits (AOB)Assistant Surgeon ModifierAuthorization DenialAuthorization NumberAuto-AdjudicationAuto-PostingAverage Sales Price (ASP)BAA (Business Associate Agreement)Bad DebtBad Debt PlacementBalance BillingBatch Claims SubmissionBatch Eligibility VerificationBenefit PeriodBenefits InvestigationBiosimilarBirthday RuleBrown BaggingBundled PaymentsBundling / UnbundlingBuy and BillCapitationCAQH ProViewCARC (Claim Adjustment Reason Code)Card on FileCarve-OutCase RateCash PostingCataract Surgery Co-ManagementCCM (Chronic Care Management)Champva (Civilian Health and Medical Program of the Department of Veterans Affairs)Charge CaptureCharge Description Master (CDM)Charge LagCharge PostingCharity CareClaim Adjustment Group CodeClaim Attachment (X12 275)Claim Frequency CodeClaim HoldClaim RejectionClaim Rejection RateClaim ScrubbingClaim Status Inquiry (276/277)Clean Claim RateClearinghouseCLIA (Clinical Laboratory Improvement Amendments)Clinical Documentation Improvement (CDI)Clinical Laboratory Fee Schedule (CLFS)CMS Interoperability and Prior Authorization RuleCMS-1450CMS-1500CO-109 Denial (Not Covered by This Payer)CO-11 Denial (Diagnosis Inconsistent with Procedure)CO-119 Denial (Benefit Maximum Reached)CO-140 Denial (Patient Name and ID Mismatch)CO-146 Denial (Diagnosis Invalid for Date of Service)CO-15 Denial (Authorization Number Missing or Invalid)CO-151 Denial (Frequency Not Supported)CO-16 Denial (Missing Information or Billing Error)CO-167 Denial (Diagnosis Not Covered)CO-18 Denial (Exact Duplicate Claim)CO-181 Denial (Procedure Code Invalid on Date of Service)CO-182 Denial (Modifier Invalid on Date of Service)CO-197 Denial (Authorization Absent)CO-198 Denial (Authorization Exceeded)CO-204 Denial (Not Covered Under Current Benefit Plan)CO-22 Denial (Care Covered by Another Payer)CO-236 Denial (Procedure Combination Not Compatible)CO-24 (Charges Covered Under Capitation)CO-242 Denial (Services Not Provided by Network Providers)CO-252 Denial (Attachment or Documentation Required)CO-253 (Sequestration Reduction)CO-26 Denial (Expenses Incurred Before Coverage)CO-27 Denial (Expenses Incurred After Coverage Terminated)CO-29 Denial (Timely Filing Limit Expired)CO-31 Denial (Patient Cannot Be Identified as Insured)CO-4 Denial (Modifier Inconsistent or Missing)CO-45 (Charge Exceeds Fee Schedule)CO-49 Denial (Routine or Preventive Service Not Covered)CO-5 Denial (Procedure Inconsistent with Place of Service)CO-50 Denial (Not Medically Necessary)CO-55 Denial (Experimental or Investigational)CO-59 (Multiple or Concurrent Procedure Rules)CO-96 Denial (Non-Covered Charge)CO-97 Denial (Included in Another Service's Payment)Co-Surgeon ModifierCOBRA (Consolidated Omnibus Budget Reconciliation Act)Coding Compliance AuditCoinsuranceCoinsurance CapCollaborative Care Model (CoCM) CodesCompanion GuideComprehensive Error Rate Testing (CERT)Comprehensive Primary Care Plus (CPC+)Computer-Assisted Coding (CAC)Contract ModelingContractual AdjustmentConversion FactorCoordination of Benefits (COB)Coordination of Benefits Agreement (COBA)Copay (Copayment)Copay AccumulatorCopay Assistance ProgramCopay MaximizerCorrected ClaimCost ReportCost to CollectCPT (Current Procedural Terminology)CPT 77301 (IMRT Treatment Planning)CPT 77427 (Radiation Treatment Management)CPT 90785 (Interactive Complexity)CPT 96360 (Initial IV Hydration)CPT 96361 (Each Additional Hour of Hydration)CPT 96365 (Initial Therapeutic IV Infusion)CPT 96366 (Each Additional Hour of Therapeutic Infusion)CPT 96367 (Sequential Infusion of a New Drug)CPT 96368 (Concurrent Infusion)CPT 96372 (Therapeutic Injection, SC or IM)CPT 96374 (IV Push, Single or Initial Drug)CPT 96375 (Sequential IV Push of a New Drug)CPT 96401 (Chemotherapy Injection, Non-Hormonal)CPT 96402 (Chemotherapy Injection, Hormonal)CPT 96409 (Chemotherapy IV Push, Single or Initial)CPT 96411 (Each Additional Chemotherapy IV Push)CPT 96413 (Chemotherapy IV Infusion, First Hour)CPT 96415 (Each Additional Hour of Chemotherapy Infusion)CPT 96416 (Initiation of Prolonged Chemotherapy Infusion with Pump)CPT 96417 (Sequential Chemotherapy Infusion of a New Drug)CPT 96521 (Refilling and Maintenance of a Portable Pump)CPT 96523 (Irrigation of an Implanted Venous Access Device)CQ and CO Modifiers (Therapy Assistant Services)CredentialingCredit BalanceCrossover ClaimCrosswalkDashboard (RCM)Days Cash on HandDays in Accounts Receivable (Days in AR)Days in ARDeductibleDenial CodeDenial ManagementDenial PredictionDenial RateDiagnosis PointerDirect Payer ConnectionDischarge Status CodeDischarged Not Final Billed (DNFB)DRG (Diagnosis-Related Group)Drug CompendiaDrug Replacement ProgramDrug Waste (JW/JZ Modifiers)Drug Waste BillingDual EligibleDunning MessagesDuplicate Claim DenialE/M Codes (Evaluation and Management)E&M Time-Based CodingEDI (Electronic Data Interchange)EHR / EMR (Electronic Health Record / Electronic Medical Record)Electronic Funds Transfer (EFT)Electronic Prior Authorization (ePA)Eligibility Inquiry (X12 270)Eligibility Response (271)Eligibility VerificationEncounter FormEnhancing Oncology Model (EOM)EOB (Explanation of Benefits)Episode of CareERA (Electronic Remittance Advice)ERA/EFT ReassociationERISA (Employee Retirement Income Security Act)ESRD Monthly Capitation Payment (MCP)Estimate of Patient ResponsibilityException-Based Work ManagementExpected ReimbursementExplanation of Payment (EOP)Facility vs. Non-Facility RateFalse Claims ActFee ScheduleFee-for-ServiceFHIR (Fast Healthcare Interoperability Resources)Financial ClearanceFinancial CounselingFinancial ResponsibilityFirst-Pass Resolution RateFront-End EditsGA ModifierGeographic Practice Cost Index (GPCI)Global PeriodGlobal Surgical PackageGold CardingGood Faith Estimate (GFE)GP, GO, and GN Modifiers (Therapy Plan of Care)Gross Collection RateGX ModifierGY ModifierGZ ModifierHard CollectionsHCC Coding (Hierarchical Condition Category)HCPCS (Healthcare Common Procedure Coding System)HCPCS Billing UnitsHCPCS G2211 (Visit Complexity Add-On)HEDIS (Healthcare Effectiveness Data and Information Set)HIPAA (Health Insurance Portability and Accountability Act)HL7 (Health Level Seven)HMO / PPO / EPO / POS PlansHospital Price Transparency RuleHospital-Acquired Condition (HAC)ICD-10ICD-10-CM vs ICD-10-PCSIn-Network / Out-of-NetworkIncident-to BillingIndependent Dispute Resolution (IDR)Information BlockingInfusion Chair UtilizationInfusion Hierarchy (Initial Service Rule)Initial Denial RateInpatient-Only ListInsurance DiscoveryInteroperabilityJ-CodeJG and TB Modifiers (340B Drugs)JW ModifierJZ ModifierKey Performance Indicator (KPI) for RCMLocal Coverage Article (LCA)Local Coverage Determination (LCD)LockboxLocum Tenens BillingM51 Remark Code (Procedure Code Missing or Invalid)MA130 Remark Code (Incomplete Claim, No Appeal Rights)MACRA (Medicare Access and CHIP Reauthorization Act)Managed Care Organization (MCO)Meaningful Use / Promoting InteroperabilityMedicaid Managed CareMedical Benefit vs. Pharmacy BenefitMedical NecessityMedical Records RequestMedically Unlikely Edit (MUE)Medicare Administrative Contractor (MAC)Medicare AdvantageMedicare Part AMedicare Part BMedicare Part DMedicare Physician Fee Schedule (MPFS)Medicare RevalidationMedicare Secondary Payer (MSP)Medicare Shared Savings Program (MSSP)MIPS (Merit-Based Incentive Payment System)MIPS Value Pathways (MVPs)ModifierModifier -22 (Increased Procedural Services)Modifier -24 (Unrelated E/M During a Postoperative Period)Modifier -25 (Significant, Separately Identifiable E/M)Modifier -26 (Professional Component)Modifier -33 (Preventive Services)Modifier -50 (Bilateral Procedure)Modifier -51 (Multiple Procedures)Modifier -52 (Reduced Services)Modifier -53 (Discontinued Procedure)Modifier -54 (Surgical Care Only)Modifier -55 (Postoperative Management Only)Modifier -56 (Preoperative Management Only)Modifier -57 (Decision for Surgery)Modifier -58 (Staged or Related Procedure)Modifier -59 (Distinct Procedural Service)Modifier -73 (Discontinued Outpatient Procedure Prior to Anesthesia)Modifier -74 (Discontinued Outpatient Procedure After Anesthesia)Modifier -76 (Repeat Procedure by Same Physician)Modifier -77 (Repeat Procedure by Another Physician)Modifier -78 (Unplanned Return to OR)Modifier -79 (Unrelated Procedure During Postop Period)Modifier -91 (Repeat Clinical Diagnostic Lab Test)Modifier -92 (Alternative Laboratory Platform Testing)Modifier -93 (Audio-Only Telehealth)Modifier -95 (Synchronous Telemedicine)Modifier -99 (Multiple Modifiers)Modifier (CPT/HCPCS Modifier)Modifier FS (Split or Shared Visit)Modifier GC (Teaching Physician Service)Modifier KX (Requirements Met)Modifier PT (Screening Converted to Diagnostic)Mohs Micrographic Surgery BillingN115 Remark Code (Decision Based on an LCD)N130 Remark Code (Consult Plan Benefit Documents)N290 Remark Code (Rendering Provider Identifier Missing or Invalid)N386 Remark Code (Decision Based on an NCD)National Correct Coding Initiative Edits (PTP)National Coverage Determination (NCD)NCCI Edits (National Correct Coding Initiative)NDC (National Drug Code)NDC Unit of MeasureNet Collection RateNet RevenueNo Surprises ActNo-Fault InsuranceNotice of Privacy Practices (NPP)NPI (National Provider Identifier)OA-23 (Impact of Prior Payer Adjudication)Off-Label Drug UseOIG Exclusion ListOncology Care Model (OCM)Online Bill PayOPPS (Outpatient Prospective Payment System)Out-of-Pocket MaximumOverpayment Refund (60-Day Rule)Patient Assistance Program (PAP)Patient Cost EstimatePatient DemographicsPatient FinancingPatient PortalPatient StatementPatient Statement CyclePatient-Driven Groupings Model (PDGM)Payer ContractingPayer EditPayer IDPayer MixPayer OffsetPayer PortalPayment PlanPECOS (Provider Enrollment, Chain, and Ownership System)Peer-to-Peer ReviewPer Diem PaymentPercent of Medicare ContractingPlace of Service (POS) CodePoint-of-Service CollectionsPQRS (Physician Quality Reporting System)PR-1 (Deductible Amount)PR-2 (Coinsurance Amount)PR-3 (Co-payment Amount)Practice Management System (PMS)Pre-CertificationPre-CollectionsPreferred Provider Organization (PPO) NetworkPrepayment ReviewPresumptive Charity CarePrimary Care Provider (PCP) AssignmentPrincipal Care Management (PCM)Prior AuthorizationPrior Authorization Transaction (X12 278)Prolonged Services (99417 / G2212)Prompt Pay DiscountPrompt Pay LawsPropensity to PayProvider EnrollmentProvider-Based BillingPsychotherapy Add-On Codes (90833, 90836, 90838)Q-Code (Biosimilar and Temporary Drug Codes)QPP Performance CategoriesQualifying Payment Amount (QPA)Quality Payment ProgramQW ModifierRadiation Oncology Course of TreatmentReal-Time Adjudication (RTA)Reassignment of BenefitsReciprocal BillingReconsiderationRecoupmentRecovery Audit Contractor (RAC)ReferralRemark Code (RARC)Remittance AdviceRemittance Advice Remark Code (RARC)Remote Therapeutic Monitoring (RTM)Retro AuthorizationRevenue Cycle Management (RCM)Revenue per EncounterRisk AdjustmentRobotic Process Automation (RPA)RPM (Remote Patient Monitoring)RT and LT Modifiers (Right and Left Side)RVU (Relative Value Unit)Screening vs. Diagnostic ColonoscopySecondary ClaimSelf-PaySelf-Pay DiscountShared SavingsSite of Service DifferentialSliding Fee ScaleSmall Balance Write-OffSMART on FHIRSoft CollectionsSoft Denial vs Hard DenialSpecialty PharmacySplit/Shared VisitStar RatingsStark LawStatement SuppressionStep TherapyStop-Loss ProvisionSubrogationSuperbillTargeted Probe and Educate (TPE)Tax Identification Number (TIN/EIN)Taxonomy CodeTechnical Component (TC) vs Professional Component (PC)TEFCA (Trusted Exchange Framework and Common Agreement)Telehealth / POS-02 / POS-10Telehealth Originating SiteTertiary PayerText-to-PayThird-Party Liability (TPL)Timely Filing DenialTimely Filing LimitTrading Partner AgreementTransitional Care Management (TCM)Transparency in Coverage RuleTRICARETwo-Midnight RuleTwo-Sided RiskType 1 vs. Type 2 NPIUB-04Unapplied CashUnbilled Accounts ReceivableUnderpayment RecoveryUnified Program Integrity Contractor (UPIC)Unlisted Drug Code (J3490 / J9999)Upcoding / DowncodingUSCDI (United States Core Data for Interoperability)Usual, Customary, and Reasonable (UCR)Value-Based CareVerification of Benefits (VOB)Virtual Credit Card Payment (VCC)White BaggingWork RVU (wRVU)Workers' Compensation BillingWorklistWrite-off Adjustment CodeX{EPSU} Modifiers (XE, XS, XP, XU)X12 837 / 835