What is the difference between CPT, HCPCS, and ICD-10?

CPT (Current Procedural Terminology) is the AMA-maintained code set for procedures and services. HCPCS Level II covers supplies, DME, drugs, and other items not in CPT — maintained by CMS. ICD-10-CM codes describe diagnoses (what the patient has); ICD-10-PCS codes describe inpatient procedures. A clean claim typically carries ICD-10-CM diagnosis codes plus CPT or HCPCS procedure codes linked via modifiers.

What is a good clean claim rate benchmark?

HFMA MAP Keys place the top-quartile clean claim rate benchmark at 95% or higher. The industry median is around 85–90%. Clean claim rate measures the percentage of claims accepted by the payer on first submission without edits or rework. Organizations with mature AI coding and scrubbing routinely exceed 97%.

Which CARC codes are the most common denials?

CARC 197 (precertification / authorization absent), CARC 11 (diagnosis inconsistent with procedure), and CARC 16 (claim lacks information) are the three highest-volume CARCs across 2026 industry data. Together they account for over half of all denied claim dollars. CARC 45, CARC 29, and CARC 96 round out the top six.

Who reviews the QuickIntell glossary entries?

Each glossary entry is reviewed by QuickIntell's RCM editorial team. Credentialed reviewers (CRCR, CPC, CCS with 5+ years of revenue cycle experience) stamp each record's last_reviewed date. Staleness SLA is 365 days — every entry is re-reviewed at least annually to track payer policy, code set updates, and benchmark shifts.

Healthcare RCM & Medical Billing Glossary

Plain-English definitions for 405 revenue cycle, medical-billing, coding, denial, payer, and compliance terms. Every entry leads with a 40–60 word answer block, followed by a formula (where one exists), an industry benchmark, and a worked example — reviewer-authored, cited inline.

Reviewed by QuickIntell Editorial Team · Last reviewed April 23, 2026

Updated Apr 23, 2026

All terms RCM Coding Denials Payer Clinical Docs Compliance

Showing 405 terms.

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ABN Form (CMS-R-131)Compliance
aka Advance Beneficiary Notice form, CMS-R-131, ABN notice
The ABN Form is CMS's standardized Form R-131, the physical or electronic document used to deliver an Advance Beneficiary Notice of Noncove…
ACA MarketplacePayer
aka Health Insurance Marketplace, Exchange, Healthcare.gov
The ACA Marketplace is the federal or state-operated health insurance exchange created by the Affordable Care Act where individuals and sma…
Accountable Care OrganizationPayer
aka ACO, Medicare ACO, MSSP ACO
An Accountable Care Organization (ACO) is a network of providers that accepts shared accountability for quality and total cost of care for…
Accounts Receivable Aging ReportRCM
aka AR Aging, AR Aging Report, Aging Summary
An Accounts Receivable Aging Report bucket outstanding claims and patient balances by the number of days they have been unpaid — typically…
Accounts Receivable DaysRCM
aka A/R Days, DAR, Receivable Days
Accounts Receivable Days is an accounting-level synonym for Days in AR — the average number of days between billing a service and collectin…
ACO BenchmarkRCM
aka ACO Benchmark Methodology, Shared Savings Benchmark, ACO Target
The ACO benchmark is the TCOC target an accountable care organization must underperform to generate shared savings. It is established throu…
ACO REACHCompliance
aka ACO Realizing Equity, Access, and Community Health, REACH, Global and Professional Direct Contracting successor
ACO REACH is CMS Innovation Center's full-risk accountable care model succeeding Global and Professional Direct Contracting. Participating…
Add-On CodeCoding
aka Add-On CPT, Secondary Procedure Code, CPT Add-On
An add-on code is a CPT code identified by a plus (+) symbol designating that the service is always performed in conjunction with a primary…
Additional Development Request (ADR)Compliance
aka ADR, Additional Development Request, Medical Records Request
An Additional Development Request (ADR) is a Medicare contractor's request for medical records or documentation to support a specific claim…
Advance Beneficiary NoticeCompliance
aka ABN, ABN Form, Form CMS-R-131
An Advance Beneficiary Notice of Noncoverage (ABN) is a standardized CMS form a provider gives a Medicare beneficiary before delivering a s…
Advanced Alternative Payment Model (Advanced APM)Compliance
aka Advanced APM, AAPM, Qualifying APM
An Advanced Alternative Payment Model is a CMS-approved APM that meets statutory criteria for more than nominal financial risk, certified E…
Agentic AI in Revenue Cycle ManagementRCM
aka Agentic AI, RCM AI Agents, Autonomous RCM Agents
Agentic AI in RCM refers to AI systems that autonomously execute multi-step revenue-cycle workflows — denial appeals, eligibility verificat…
AI Denial PredictionRCM
aka Denial Prediction Model, Predictive Denial Management, Pre-Claim Denial Risk
AI denial prediction applies machine learning to predict which claims are at high risk of denial before submission, enabling proactive corr…
AI Governance in HealthcareCompliance
aka Healthcare AI Governance, Clinical AI Governance, AI Oversight Framework
AI Governance in healthcare is the organizational framework ensuring safe, effective, equitable, and compliant deployment of artificial int…
AI Medical ScribeClinical Docs
aka AI Scribe, Digital Scribe, Virtual Medical Scribe
An AI medical scribe is an AI system that generates clinical documentation from patient-clinician encounters, typically via passive audio c…
ALJ Hearing (Medicare Level 3 Appeal)Denials
aka Administrative Law Judge Hearing, Medicare Level 3, OMHA Hearing
An ALJ Hearing is the third level of the Medicare claim appeals process, conducted before an Administrative Law Judge at the Office of Medi…
Allowed AmountRCM
aka Allowable Amount, Contracted Allowable, Maximum Allowable
The allowed amount is the maximum amount a payer will recognize as reimbursable for a covered service, representing the sum of payer paymen…
Alternative Payment Model (APM)Compliance
aka APM, Advanced APM, Alternative Payment Model
An Alternative Payment Model (APM) is a CMS payment approach that departs from traditional fee-for-service, tying reimbursement to quality,…
Ambient Clinical DocumentationClinical Docs
aka Ambient AI Documentation, Passive Clinical Scribe, Conversational AI Scribe
Ambient clinical documentation is AI-generated clinical notes created from passive audio capture during patient-clinician encounters. AI sy…
Ambulatory Payment Classification (APC)Coding
aka APC, OPPS APC, Outpatient APC
An Ambulatory Payment Classification (APC) is the outpatient-payment equivalent of a DRG, used by Medicare's Outpatient Prospective Payment…
Ambulatory Surgery Center (ASC)Payer
aka ASC, Outpatient Surgery Center, Surgicenter
An Ambulatory Surgery Center (ASC) is a Medicare-certified outpatient facility providing same-day surgical services — elective procedures t…
Anti-Kickback StatuteCompliance
aka AKS, Federal Anti-Kickback Statute, 42 USC 1320a-7b
The Anti-Kickback Statute (AKS) is a federal criminal law prohibiting the knowing and willful exchange of anything of value to induce or re…
Appeal Success RateDenials
aka Denial Overturn Rate, Appeal Win Rate, Recovery Rate
Appeal success rate is the percentage of appealed claims that result in overturn of the original denial with payment. It measures the effec…
AR AgingRCM
aka Accounts Receivable Aging, Aging Bucket, Aging Distribution
AR Aging is the bucketed decomposition of outstanding accounts receivable by age — how long each claim or patient balance has been unpaid.…
Attribution MethodologyRCM
aka Member Attribution, ACO Attribution, Patient Assignment
Attribution methodology is the set of rules determining which members an ACO is financially responsible for during a performance year. Comm…
Authorization DenialDenials
aka Prior Auth Denial, Auth Denial, Precertification Denial
An authorization denial is a claim denial because required prior authorization was not obtained, authorization was obtained but for the wro…
Autonomous CodingCoding
aka Automated Coding, AI Medical Coding, Zero-Touch Coding
Autonomous coding is the application of AI systems — typically large language models, NLP, and computer vision — to generate final medical…

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J-Code (HCPCS Level II Drug Code)Coding
aka J-Code, HCPCS J-Code, Medicare Drug Code
A J-code is a HCPCS Level II code beginning with the letter J that identifies a physician-administered drug or biological. J-codes are used…

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Kidney Care Choices (KCC) ModelRCM
aka KCC, Kidney Care Choices, CMMI KCC
Kidney Care Choices is a CMMI payment model that provides specialized capitated payment arrangements for Medicare beneficiaries with late-s…

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Zero Balance ReviewRCM
aka Zero Balance Audit, Post-Payment Review, Closed Account Review
A zero balance review is a retrospective audit of paid claims that closed with zero balance to identify underpayments, improperly adjudicat…

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Healthcare RCM & Medical Billing Glossary

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