Denial Management Services for U.S. Healthcare Providers

Q: What is the difference between a claim rejection and a claim denial?

A claim rejection occurs before the payer processes the claim. The claim is returned to the provider due to formatting errors, missing data, or invalid codes — it never enters the adjudication system. Rejections are corrected and resubmitted immediately. A claim denial occurs after the payer has processed and adjudicated the claim and determined it cannot be paid. Denials require root-cause analysis, documentation review, and a formal appeal or corrected claim submission. The distinction matters for timely filing: a rejection clock resets on resubmission; a denial clock does not. (Sources: JTS Health Partners; AHIMA Best Practices for Denials Prevention and Management)

Q: What is the difference between a soft denial and a hard denial?

A soft denial is a temporary denial that can be resolved by providing additional information or correcting an error. Payers withhold payment pending correction, but the claim remains payable once fixed. Common soft denials include missing prior authorization documentation or incomplete patient information. A hard denial is a final determination that the claim will not be paid. Hard denials require a formal appeal or must be written off. Examples include timely filing denials (CO-29) after the appeal window closes, and medical necessity denials (CO-50) upheld after peer-to-peer review. (Sources: JTS Health Partners; DrCatalyst 2026 Denial Guide)

Q: How do I appeal a denied medical billing claim?

Appealing a denied claim involves six steps: (1) identify the denial CARC/RARC code from the ERA or EOB; (2) determine whether the denial is administrative, clinical, or coding-related; (3) gather supporting documentation (medical records, authorization letters, clinical notes); (4) write a payer reconsideration letter or formal appeal citing the specific denial code and correction; (5) submit within the payer’s appeal deadline; and (6) track the appeal status and escalate to peer-to-peer review if needed for medical necessity disputes. For Medicare, the first level of appeal is a Redetermination, submitted to the MAC within 120 days. (Sources: AAPC Denials Management & Appeals Reference Guide; Noridian Medicare Timely Filing)

Q: How long do healthcare providers have to appeal a denied claim?

Appeal timelines vary by payer: Medicare Part B allows 120 days from the denial date for a Redetermination (CO-29 timely filing denials are not eligible). Medicare Advantage plans typically allow 60 days. Commercial payer windows include: UnitedHealthcare — 65 calendar days; Aetna, BCBS, and Cigna — 180 days. Medicaid appeal deadlines are state-specific, ranging from 30 to 180 days. Appeal clocks start from the date on the denial notice. Missing an appeal window is almost always unrecoverable. (Sources: Noridian Medicare; Muni Health UHC 2026; AAPC Denials Management Reference Guide)

Q: What are CARC and RARC codes in medical billing?

CARC (Claim Adjustment Reason Code) is a standardized code used by payers to explain why a claim was adjusted or denied. The 2026 CARC set contains 358 active codes. RARC (Remittance Advice Remark Code) provides supplemental context about the denial — often including instructions for correction or appeal. The 2026 RARC set contains 1,185 active codes. Both appear on the ERA (Electronic Remittance Advice) or EOB (Explanation of Benefits). Providers should read the CARC first to understand the financial reason for the denial, then consult the RARC for specific action guidance. CARC codes are the foundation of any CARC-anchored denial management workflow. (Source: CMS Review Reason Codes; Sprypt CARC/RARC Guide 2025)

Q: How much does it cost to outsource denial management?

Outsourced denial management is typically priced as part of a comprehensive medical billing service fee — a percentage of monthly collections. RevalonMD’s billing services start at 2.99% of monthly collections [⚠ Founder sign-off required before publishing this figure]. In-house denial management costs vary: the average cost to rework a single denied claim ranges from $25 to $181 depending on complexity (OS Healthcare, 2025). For a practice with a 7% denial rate on 20,000 claims annually, that is 1,400 denied claims at an average rework cost of $25–$117 (MGMA benchmark) — $35,000 to $163,800 per year in rework costs alone, before accounting for write-offs. Outsourcing to a specialized denial management team typically reduces the denial rate while recovering revenue on aged denied claims. (Sources: OS Healthcare 2025; MGMA; Practolytics)

Definition

What is denial management in medical billing?

Denial management in medical billing is the systematic process of identifying, investigating, appealing, and preventing insurance claim denials so healthcare providers receive payment for services rendered. It spans the full revenue cycle: from front-end eligibility verification that prevents denials, to post-denial root-cause analysis, to formal appeals and trend reporting that stop denials from recurring.

That definition matters because denial management is not just reactive — it is both the downstream safety net for billing exceptions and the source of prevention intelligence that eliminates upstream errors. Every denied claim that is not reworked becomes a permanent write-off.

Three claim-level outcomes drive the distinction at the center of denial management. A rejectionis returned before adjudication — it never enters the payer’s system and is corrected and resubmitted immediately. A soft denial is temporary: the payer withholds payment pending additional information but will pay once the issue is resolved. A hard denial is a final payer determination that the claim will not be paid — it requires a formal appeal or must be written off. Understanding which outcome you are dealing with determines the resolution pathway and the urgency of action.

Effective denial management requires accurate CPT 2026 (AMA) and ICD-10-CM FY2026 (CMS/NCHS) coding at the point of care, proper prior authorization for services that require payer pre-approval, and clean claim submission through full revenue cycle management. Denial management is the function that catches and corrects what slips through.

The financial stakes

What claim denials cost U.S. healthcare providers

Claim denials cost U.S. hospitals an estimated $43 billion in administrative costs in 2025, according to the AHA. The average denial rate reached 11.8% in 2024. The average cost to rework a single denied claim ranges from $25 to $181. Sixty-five percent of denied claims are never reworked — revenue that practices write off permanently.

Those figures describe the industry average — not a floor. Practices with a high Medicare Advantage mix, high-complexity specialties, or under-resourced billing teams frequently operate above the 11.8% average denial rate. The numbers below set the benchmark against which RevalonMD’s denial management performance is measured.

$43B

Hospital admin costs from denials in 2025

AHA — Skyrocketing Hospital Administrative Costs, September 2024

11.8%

Average claim denial rate in 2024

OS Healthcare, 2025; denial rate up from 10.5% in 2023

86%

Of denials are potentially avoidable

Becker’s Hospital Review, citing industry data (2024+)

65%

Of denied claims are never reworked

Industry benchmark — AAPC / HFMA sources

Sources: AHA — Skyrocketing Hospital Administrative Costs, September 2024 (aha.org); OS Healthcare, Revenue Cycle Benchmarks 2025; Becker’s Hospital Review, 2024; industry benchmark (AAPC / HFMA). 65% of denied claims never reworked — AAPC / HFMA. RevalonMD recovers revenue on claims that would otherwise be written off permanently.

Denial taxonomy

The six most common claim denial types — by CARC code

The six most common claim denial types, by CARC code, are: CO-16 (missing or incomplete information), CO-50 (medical necessity), CO-29 (timely filing exceeded), CO-22 (coordination of benefits error), CO-4/CO-11 (coding errors), and CO-97 (bundling). Each requires a distinct resolution pathway, which is why CARC-code routing is central to effective denial management.

CARC codes are the first diagnostic signal for every denied claim. Each code maps to a distinct root cause, a distinct resolution pathway, and a distinct specialist — which is why CARC-anchored routing is the structural foundation of effective denial management. The 2026 CARC set contains 358 active codes (CMS); the six below drive the majority of preventable denials across all specialties.

CO-16

Missing or Incomplete Information

The most common administrative denial. The payer rejects the claim because required fields are missing, demographic data is incorrect, or the insurance ID is invalid. CO-16 denials account for a disproportionate share of initial claim failures and are almost entirely preventable with front-end intake controls.

Resolution: Identify the missing element from the RARC detail code. Correct the claim and resubmit within the payer’s timely filing window. Update intake workflows to prevent recurrence.

⚠ 2026 CARC set, CMS — most frequent administrative denial code

CO-50

Medical Necessity Denial

The payer determines the service does not meet its definition of medical necessity under the patient’s benefit plan. CO-50 is the most complex denial type to appeal, requiring clinical documentation, ICD-10-CM FY2026 (CMS/NCHS) diagnosis support, and often a peer-to-peer review between the treating physician and the payer’s medical director.

Resolution: Assemble the clinical documentation packet — ICD-10-CM FY2026 diagnosis codes, procedure notes, prior authorization records, and medical necessity criteria from InterQual or MCG. Submit a formal written appeal. Initiate peer-to-peer review if the initial appeal is denied.

⚠ ICD-10-CM references must specify FY2026 code year (CMS/NCHS, effective October 1, 2025). Flag for Coding Director verification.

CO-29

Timely Filing Denial

The claim was submitted after the payer’s filing deadline. Medicare Part B requires submission within 12 months of the date of service. Commercial payer windows vary from 90 days to 365 days (see Appeal Timelines table). CO-29 is almost always unrecoverable after the appeal window closes — prevention is the only cure.

Resolution: If the timely filing window has not closed: submit a corrected claim with proof of timely submission (clearinghouse confirmation, EHR log). If the window is closed: document the root cause in the denial tracking system and implement a claim-age monitor to prevent recurrence.

⚠ CO-29 timely filing denials for Medicare Part B are NOT eligible for Redetermination (Medicare Claims Processing Manual, Chapter 30).

CO-22

Coordination of Benefits (COB) Denial

The patient has multiple insurance plans and the claim was routed to the wrong primary payer, or coordination of benefits was not properly established. COB errors are a front-end intake failure — they signal that the patient’s dual-coverage status was not captured or verified at registration.

Resolution: Verify primary and secondary payer order through the patient’s insurers and update the COB record. Re-submit the claim to the correct primary payer first. If COB is already established, confirm the correct claim sequencing and resubmit.

CO-4 / CO-11

Coding Errors (CPT / ICD-10-CM / Modifier)

CO-4 indicates the procedure code is inconsistent with the modifier used. CO-11 indicates the diagnosis code is inconsistent with the procedure code billed. Both are coding-layer denials that require Coding Director review. CPT 2026 (AMA) and ICD-10-CM FY2026 (CMS/NCHS) references apply.

Resolution: Route to Coding Director. Review CPT 2026 code + modifier pairing (CO-4) or ICD-10-CM FY2026 + CPT 2026 combination (CO-11). Submit corrected claim with the accurate code set. Document in denial trend analytics to identify systemic coding errors.

⚠ CPT codes must specify ‘2026 CPT’ (AMA). ICD-10-CM codes must specify ‘ICD-10-CM FY2026’ (CMS/NCHS, effective October 1, 2025). Flag for Coding Director verification before publish.

CO-97

Bundling Denial (NCCI Edit)

The service billed is included in the payment for another service already paid on the same claim or a related claim. CO-97 denials typically result from a National Correct Coding Initiative (NCCI) edit violation — two codes that should not be billed together without a valid modifier.

Resolution: Review the NCCI edit table (CMS, updated quarterly). Determine whether Modifier 59 or one of the NCCI-compliant ‘X’ modifiers (XE, XS, XP, XU) applies clinically and is supported by documentation. If applicable, resubmit with the correct modifier. If not applicable, accept the bundling as correct. Cite: CMS NCCI Edits (GOV-05).

Code-year note: CPT 2026 (AMA) · ICD-10-CM FY2026 (CMS/NCHS, effective October 1, 2025) · HCPCS 2026 (CMS). All code references are verified by the RevalonMD Coding Director (CCS, RHIA, CPMA) before publication. 2026 CARC set: 358 active codes (CMS Review Reason Codes, January 2026).

Denial classification

Soft denials vs. hard denials — and what Medicare Advantage changes

A soft denial is temporary and correctable — the payer withholds payment pending additional information or a correction but will pay once the issue is resolved. A hard denial is a final payer determination that the claim will not be paid. Hard denials require a formal appeal or must be written off. A rejection differs from both: it is returned before adjudication, never entering the payer’s system.

Soft Denial

Temporary — correctable

Payment withheld pending additional information, a correction, or documentation. Common examples: missing prior auth documentation (CO-15/CO-57), incomplete patient information (CO-16), COB verification needed (CO-22).

Urgency:Act before the payer’s resubmission window closes.

Hard Denial

Final — appeal or write-off

Final payer determination that the claim will not be paid. Examples: CO-29 after the timely filing window closes, CO-50 upheld after peer-to-peer review. Hard denials require a formal appeal submitted within the payer’s appeal deadline or must be written off permanently.

Urgency: Appeal within payer deadline — UHC: 65 days; Medicare Redetermination: 120 days.

Medicare Advantage

High-MA-mix practices: different calculus

Medicare Advantage plans denied approximately 17% of initial claims in 2024 — a 4.8% year-over-year spike from 2023 — according to KFF data. Fifty-seven percent of those denials were ultimately overturned. For practices with a high MA payer mix, the denial burden is structurally different from traditional Medicare and requires a distinct appeal strategy.

Source: KFF, Medicare Advantage Denial Data 2024 · CMS-0057-F, January 17, 2024 (effective January 1, 2026 — MA plans must provide specific denial reasons).

Process

The 13-step denial management process — end to end

The steps in claim denial management are: (1) identify the denial via ERA/EOB, (2) categorize by CARC code, (3) classify as administrative, clinical, or coding, (4) route to the appropriate specialist, (5) perform root cause analysis, (6) prepare and submit the appeal, (7) track status, and (8) implement prevention measures upstream.

RevalonMD’s 13-step workflow extends the standard 8-step claim resolution process with CARC-anchored routing, root-cause analysis, and upstream prevention feedback — the three additional steps that separate one-off claim recovery from a self-improving denial management system. Every step is run inside your existing EHR by AAPC- and AHIMA-certified staff.

Step 1: Receive and Flag Denied Claims (ERA/EOB Review)Pull the Electronic Remittance Advice (ERA) or Explanation of Benefits (EOB) daily. Flag every denied line item by the date the denial is posted, not the date of service — the appeal clock runs from the denial date.
Step 2: Categorize by CARC CodeRead the CARC code on every denied claim. Group denials into CARC buckets — CO-16, CO-50, CO-29, CO-22, CO-4/CO-11, CO-97, and other — before any resolution work begins. CARC categorization determines the routing decision at step 4.
Step 3: Classify as Administrative, Clinical, or Coding DenialAdministrative denials (CO-16, CO-22, CO-29) are resolved by the billing team. Clinical denials (CO-50) require clinical documentation and often peer-to-peer review. Coding denials (CO-4, CO-11, CO-97) require Coding Director review. Classification determines who works the claim and how.
Step 4: Route to Specialist (CARC-Anchored Routing)CO-16 → Billing team (correct and resubmit). CO-50 → Clinical review + Coding Director (medical necessity documentation + peer-to-peer). CO-29 → Billing team + supervisor (timely filing proof). CO-22 → Billing team + intake (COB verification). CO-4/CO-11 → Coding Director (CPT 2026 / ICD-10-CM FY2026 review). CO-97 → Coding Director + modifier review (NCCI edit check).
Step 5: Perform Root Cause Analysis (RCA)For each denial, determine the upstream origin: intake error, eligibility gap, coding error, documentation deficiency, or payer rule change. RCA findings feed step 13. Without RCA, you fix the symptom; the next claim generates the same denial.
Step 6: Gather Supporting DocumentationAssemble the documentation packet required for the specific denial type. CO-50 requires clinical notes, ICD-10-CM FY2026 diagnosis codes, prior authorization records, and medical necessity justification. CO-4/CO-11 requires operative notes and the corrected 2026 CPT code-and-modifier pairing.
Step 7: Prepare Appeal or Corrected ClaimWrite a payer reconsideration letter citing the specific CARC code, the denial reason, the correction made, and the supporting documentation enclosed. For Medicare Redeterminations, use the CMS-20027 form or the MACs’ online portal. For clinical denials, prepare a written appeal letter signed by the treating provider.
Step 8: Submit Appeal Within Payer DeadlineSubmit the appeal before the payer’s appeal deadline — UHC (65 calendar days), Aetna/BCBS/Cigna (180 days), Medicare Part B Redetermination (120 days), Medicare Advantage (60 days). Confirm submission via clearinghouse or certified mail. Missing the deadline is almost always unrecoverable.
Step 9: Track Appeal Status in Real-TimeLog every appeal in the denial tracking system with the submission date, payer reference number, and expected response window. Follow up with the payer at 30-day intervals. Do not wait for payer outreach — payers may simply age unresolved appeals past the response window.
Step 10: Escalate if Needed (Peer-to-Peer / Secondary Appeal)If a CO-50 medical necessity appeal is denied, initiate a peer-to-peer review — a direct call between the treating physician and the payer’s medical director. For commercial payers, the escalation pathway is: first-level appeal → second-level reconsideration → external review. For Medicare: Redetermination → Reconsideration (QICIC) → ALJ hearing → Appeals Council → federal court.
Step 11: Post-Resolution DocumentationOnce a denial is resolved — paid, appealed successfully, or written off — update the claim record in the practice management system. Document the outcome, resolution method, and time-to-resolution. Accurate post-resolution documentation feeds trend analytics at step 12.
Step 12: Update Denial Trend AnalyticsAggregate denial data by CARC code, payer, provider, procedure type, and date of service range. Generate monthly denial trend reports. A rising CO-50 rate for a specific CPT code signals a documentation or medical necessity issue; a rising CO-16 rate signals an intake workflow failure.
Step 13: Feed Prevention Intelligence Back to Front-End IntakeDenial data is only valuable when it reaches the front end. Brief the intake team on the denial drivers identified in steps 5 and 12. Update intake scripts, eligibility verification checklists, pre-cert workflows, and coding templates to eliminate the root causes. The goal is a denial rate that trends toward zero, not steady-state rework.

Step 13 closes the prevention loop — and that is the differentiator.

Most billing vendors stop at step 11 (post-resolution documentation). RevalonMD continues to step 12 (denial trend analytics by CARC code, payer, provider, and procedure) and step 13 (prevention intelligence fed back to intake, coding, and pre-cert workflows). The goal is a denial rate that trends toward zero — not steady-state rework at the industry’s average 11.8%.

Appeal deadlines

Payer-specific appeal timelines for claim denials

The most common reason an otherwise recoverable denial becomes a permanent write-off is a missed appeal deadline. Each payer sets its own timely filing window and appeal deadline — the table below covers the major payers that appear most frequently in the U.S. provider payer mix. RevalonMD tracks appeal windows for every denied claim and submits before the deadline.

Claim denial appeal timelines by payer — timely filing windows and appeal deadlines.
Payer	Timely Filing Window	Appeal Deadline	Key Notes
Medicare Part B	12 months from date of service	120 days from denial (Redetermination)	CO-29 (timely filing) denials are NOT eligible for Redetermination. Source: Medicare Claims Processing Manual, Chapter 30 (CMS, GOV-03).
Medicare Advantage	Varies by plan (typically 90 days)	60 days from denial (Reconsideration)	CMS-0057-F PA transparency rules now in effect (January 1, 2026). Payers must provide specific denial reasons. Verify plan-specific rules in the plan’s Evidence of Coverage.
Medicaid	30–365 days (state-specific)	30–180 days (state-specific)	Timely filing and appeal windows vary by state Medicaid agency. Verify current state-specific windows before submission.
UnitedHealthcare	90–365 days (plan-specific)	65 calendar days from denial	Shortest commercial appeal window of the major payers — act immediately on denial receipt. Source: Muni Health, UHC Appeal Timely Filing Deadlines 2026.
Aetna	180 days	180 days from denial	Verify under current Aetna provider contract. May vary by plan type and market.
Blue Cross Blue Shield	180 days	180 days from denial	Varies by BluePlan and market. Verify against current BCBS contract for the applicable plan.
Cigna	180 days	180 days from denial	Verify under current Cigna provider contract. ⚠ Code-year note: timely filing windows are payer-set, not CMS-set (except Medicare). Verify all windows against current 2026 payer contracts before publication.

How it works in practice

How RevalonMD recovers denied claims for your practice

RevalonMD recovers denied claims through a 13-step CARC-anchored workflow: identifying denials via ERA/EOB, routing by denial type, performing root-cause analysis, preparing payer-specific appeals, and feeding prevention intelligence back to front-end intake. AAPC- and AHIMA-certified staff work every denial type across 50+ specialties in all 50 states.

Industry benchmarks describe the average. An actual workflow shows the mechanism. The representative engagement below reflects the denial pattern RevalonMD sees most often in multi-specialty group practices.

Operator Example · Multi-specialty group practice · Southeast region

A multi-specialty group practice in the Southeast was experiencing an 11% overall claim denial rate, with CO-50 (medical necessity) and CO-4/CO-11 (coding error) denials concentrated in cardiology and orthopedics services. The practice’s billing department was manually tracking denials in a spreadsheet, missing appeal deadlines on approximately 18% of denied claims, and writing off an estimated $38,000–$52,000 in recoverable revenue monthly.

RevalonMD restructured the workflow

1

Root-cause analysis identified that 74% of CO-50 denials stemmed from insufficient medical necessity documentation at the point of ordering — not from service non-coverage.

2

A pre-submission coding audit workflow was implemented for all cardiology and orthopedics CPT 2026 codes (AMA) flagged for medical necessity risk.

3

Front-end intake was retrained on CO-16 prevention: eligibility verification at scheduling, not day-of-service.

4

A CARC-anchored routing table was implemented in the billing system so each denial type routes to the correct specialist within 24 hours of ERA posting.

5

Appeal submissions were systematized with payer-specific deadline tracking, eliminating missed-window write-offs.

Outcome: The billing staff, previously consumed by reactive denial rework, redirected capacity to proactive front-end prevention and aged AR recovery. RevalonMD provides the same CARC-anchored denial management workflow for 50+ specialties across all 50 states, regardless of EHR system.

Illustrative scenario — not a specific named client. Revenue and workflow outcomes are representative and depend on payer mix, specialty, and volume. No PHI is included in this example.

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Specialty denial patterns

Denial patterns by medical specialty

Denial patterns differ substantially by specialty because CARC codes concentrate around the procedure mix, documentation requirements, and payer medical necessity policies for each discipline. RevalonMD maintains specialty-specific CARC routing workflows and denial trend analytics for all 50+ specialties we serve.

Cardiology

High CO-50 volume on advanced imaging (PET, nuclear stress, cardiac MRI) and interventional procedures. Medical necessity documentation must align with AHA/ACC guidelines and ICD-10-CM FY2026 diagnosis specificity.

Orthopedics

Elevated CO-50 denials for joint replacement and spine surgery, plus CO-97 bundling denials when surgical implant codes are billed alongside procedure codes. NCCI edit review is essential.

Mental Health / Behavioral Health

CO-50 medical necessity denials are disproportionately high for inpatient and residential treatment levels of care. Payers apply InterQual or MCG criteria; concurrent review for ongoing inpatient episodes is critical.

Radiology

Advanced imaging (MRI, CT, PET) carries some of the highest prior authorization denial rates of any specialty. CO-15/CO-57 (authorization-related) and CO-50 drive the denial mix.

Oncology

High-cost biologic and specialty drug denials (CO-50 + step therapy failures) plus surgical procedure bundling (CO-97). Comprehensive prior authorization management is inseparable from oncology denial management.

For specialties where prior authorization denials (CO-15/CO-57) overlap with claim-level denial management, RevalonMD manages both functions in a single integrated workflow — so the authorization denial and the claim denial are tracked and appealed through one coordinated team.

Comparison

Why healthcare providers choose RevalonMD for denial management

Compared with an in-house billing team or a generic billing company, RevalonMD pairs CARC-anchored routing, Coding Director review for every CO-4/CO-11 denial, and payer-specific appeal deadline tracking with national specialty and state coverage and a signed BAA before any PHI access. The differentiators are structural — not marketing claims.

Denial management: in-house team vs. generic billing company vs. RevalonMD.
Capability	In-house team	Generic billing company	RevalonMD
Specialty coverage	Your specialty only	10–20 specialties	50+ specialties
State coverage	Your licensed states	Varies	All 50 states
CARC-anchored routing workflow	Manual / ad hoc	Generic workflow	CARC-code routing
AAPC / AHIMA certified staff	Varies	Varies	Required for all staff
Coding Director review for CO-4/CO-11	If available	Rarely	Standard protocol
Peer-to-peer review coordination	Provider-managed	Varies	RevalonMD-managed
Payer-specific appeal timeline tracking	Manual	Generic	Payer-specific
BAA before any PHI access	N/A	Varies	With every client
HIPAA-compliant workflow	N/A	Varies	45 CFR §164 compliant
First-pass claim rate	Varies	Varies	99% (target)
Starting billing rate	Salary + benefits	5%–8%	2.99% (target)

† First-pass claim rate (99%) and starting billing rate (2.99%) are RevalonMD operating targets — 99% first-pass claim rate is a RevalonMD operating target; individual practice results vary by specialty, payer mix, and documentation quality.

Talk to a specialist

Talk to a denial management specialist

RevalonMD manages claim denial identification, root-cause analysis, payer-specific appeals, and prevention reporting for practices across 50+ specialties in all 50 states — using AAPC- and AHIMA-certified staff and a signed BAA before any PHI is accessed.

Starting billing rate: 2.99% (target) · BAA signed with every client before any PHI access.

Phone: (307) 333-8199Email: support@revalonmd.comHours: Mon–Fri 8am–6pm EST · Sat 9am–1pm EST

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CARC-anchored routing for every specialty

Reviewed by RevalonMD Coding Director (CCS, RHIA, CPMA) · Last reviewed: June 2026

FAQ

Frequently asked questions about denial management

What is denial management in medical billing?

Denial management in medical billing is the systematic process of identifying, investigating, appealing, and preventing insurance claim denials so healthcare providers receive payment for services rendered. It spans the full revenue cycle: from front-end eligibility verification that prevents denials, to post-denial root-cause analysis, to formal appeals and trend reporting that stop denials from recurring. Effective denial management reduces days in AR, improves first-pass claim rates, and protects practice revenue. (Source: HBMA, Q1 2025 RCM Advisor)

What are the most common types of claim denials?

What is the difference between a claim rejection and a claim denial?

What is the difference between a soft denial and a hard denial?

How do I appeal a denied medical billing claim?

How long do healthcare providers have to appeal a denied claim?

What are CARC and RARC codes in medical billing?

How much does it cost to outsource denial management?

Related services

Related revenue cycle services

Denial management is the downstream safety net for the revenue cycle. The services below address the upstream drivers of the most common denial types — prevention is always more efficient than rework.

Clean claim submission at the front end is the first line of denial prevention — denial management is the downstream safety net when billing exceptions occur.

full-cycle medical billing services →

Coding-error denials (CO-4, CO-11, CO-97) trace to the coding layer. Accurate CPT 2026 and ICD-10-CM FY2026 coding eliminates the most preventable denial category.

AAPC-certified medical coding →

Prior authorization denials (CO-15, CO-57) are prevented by obtaining pre-service payer approval before delivering care. RevalonMD manages end-to-end authorization.

prior authorization services →

Denial management is one function inside a fully integrated revenue cycle. RevalonMD’s eight service pillars work together to protect provider revenue at every stage.

end-to-end RCM →

Who stands behind this page

Written by VP, Revenue Cycle Management (RHIA (AHIMA), CRCR (HFMA)) · Reviewed by RevalonMD Medical Coding Team (CCS, RHIA (AHIMA) · CPMA (AAPC))

Last reviewed: June 2026 by RevalonMD Medical Coding Team, CCS, RHIA (AHIMA) · CPMA (AAPC)

The author leads RevalonMD’s revenue cycle operations — eligibility through payment posting, denial management, and AR recovery — and reviews every page that quotes a reimbursement or turnaround metric. The reviewer owns RevalonMD’s performance claims and signs every Business Associate Agreement personally.

Methodology: statistical claims on this page cite the AHA (Skyrocketing Hospital Administrative Costs, September 2024), OS Healthcare (Revenue Cycle Benchmarks 2025), KFF (Medicare Advantage Denial Data 2024), and MGMA (2024). Regulatory claims cite the CMS Interoperability and Prior Authorization Final Rule (CMS-0057-F, January 17, 2024) and the HIPAA Privacy and Security Rules (45 CFR §§164.502, 164.504). CARC code references use the 2026 CARC set (358 active codes, CMS). Medical-code references name their code year (CPT 2026, AMA; ICD-10-CM FY2026, CMS/NCHS effective October 1, 2025; HCPCS 2026, CMS) and are verified by the RevalonMD Coding Director (CCS, RHIA, CPMA) before publication. Performance figures (99% first-pass, 2.99% starting rate) are RevalonMD operating targets — not industry averages presented as guarantees. Payer appeal timelines are verified against current 2026 payer contracts and are flagged for re-verification at the 6-month WARM refresh.

2026 CARC set — 358 codes (CMS)2026 RARC set — 1,185 codes (CMS)AHA — Hospital Admin Costs (Sept 2024)OS Healthcare RCM Benchmarks 2025KFF — MA Denial Data 2024MGMA 2024CMS-0057-F (Jan 17, 2024)45 CFR §§164.502, 164.504CPT 2026 (AMA)ICD-10-CM FY2026 (CMS/NCHS)HCPCS 2026 (CMS)NCCI Edits (CMS, quarterly)Medicare Claims Processing Manual Ch. 30

Denial Management Services for U.S. Healthcare Providers

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What is denial management in medical billing?

What claim denials cost U.S. healthcare providers

The six most common claim denial types — by CARC code

Missing or Incomplete Information

Medical Necessity Denial

Timely Filing Denial

Coordination of Benefits (COB) Denial

Coding Errors (CPT / ICD-10-CM / Modifier)

Bundling Denial (NCCI Edit)

Soft denials vs. hard denials — and what Medicare Advantage changes

Temporary — correctable

Final — appeal or write-off

High-MA-mix practices: different calculus

The 13-step denial management process — end to end

Step 13 closes the prevention loop — and that is the differentiator.

Payer-specific appeal timelines for claim denials

How RevalonMD recovers denied claims for your practice

Denial patterns by medical specialty

Cardiology

Orthopedics

Mental Health / Behavioral Health

Radiology

Oncology

Why healthcare providers choose RevalonMD for denial management

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Credentialed, compliant, nationwide

Frequently asked questions about denial management

What is denial management in medical billing?

What are the most common types of claim denials?

What is the difference between a claim rejection and a claim denial?

What is the difference between a soft denial and a hard denial?

How do I appeal a denied medical billing claim?

How long do healthcare providers have to appeal a denied claim?

What are CARC and RARC codes in medical billing?

How much does it cost to outsource denial management?

Related revenue cycle services

Who stands behind this page

Stop writing off denied claims. Recover revenue that is already owed to you.