CPT 93298 reports remote interrogation device evaluation of a subcutaneous cardiac rhythm monitor across a monitoring period of up to 30 days. The billed work covers analysis of recorded heart rhythm data, clinical review, and a report.
A physician or qualified healthcare professional performs that professional portion. An implantable loop recorder is the common device. You can bill it globally, or split it with modifier 26 or modifier TC.
Billing teams still get CPT code 93298 wrong for four reasons. Old G2066 remote interrogation workflows sit inside claim templates and vendor articles that still carry 2023 instructions. Competing pages describe 93297 and 93298 backward.
Coders also reach for pacemaker or ICD codes because the device is implanted. And the technical work often runs at a monitoring company while the interpretation happens at the cardiology group, so two organizations bill CPT 93298 for the same 30 days.
The 93298 CPT code description turns on two things: the implantable loop recorder in the patient’s chest, and the data the clinician reviewed. Miss either one and your team sends the claim under the wrong code family.
CMS groups the subcutaneous cardiac rhythm monitor service under 93298 and separates it from external services like Holter monitoring and mobile cardiac telemetry. Novitas Solutions sets that out in its CMS cardiac monitoring guidance.
Below: code selection, component billing, frequency, documentation, 2026 Medicare payment, diagnosis, denials, and a claim workflow. Every rule carries a label, whether it comes from CPT, CMS, a local coverage policy, or a payer.
CPT 93298 Quick Reference for 2026
Code at a Glance
| Quick-Reference Field | Detail |
|---|---|
| CPT code | 93298 |
| Service category | Remote interrogation device evaluation |
| Device | Subcutaneous cardiac rhythm monitor, including an implantable loop recorder |
| Data reviewed | Recorded heart rhythm data |
| Service period | Up to 30 days |
| CPT minimum period | Do not report when the monitoring period runs under 10 days |
| CPT reporting frequency | Report once per 30 days |
| Professional component work | Analysis, review, and report by a physician or qualified healthcare professional |
| Component structure | Global service, professional component with modifier 26, or technical component with modifier TC |
| Former technical code | G2066 |
| Status of that code | CMS deleted it effective January 1, 2024 |
| OPPS treatment since 2024 | Status indicator Q1, meaning STV-packaged, under APC 5741 |
| 2026 QP conversion factor | $33.57, a Physician Fee Schedule conversion factor and not the code’s payment |
| 2026 non-QP conversion factor | $33.40, a Physician Fee Schedule conversion factor and not the code’s payment |
| Payment variation | Component, locality, facility status, participation category, and payer contract |
| Main coding risk | Wrong device or wrong component |
| Main documentation risk | No evidence supporting the portion billed |
CMS finalized two conversion factors for 2026: $33.57 for qualifying alternative payment model participants, and $33.40 for clinicians who don’t qualify. Neither figure is the payment for 93298. Both feed a calculation covered further down this page.
This snapshot gets your team started on CPT 93298 billing guidelines, and the sections below turn each row into a decision. Verification still belongs to you. Your MAC publishes its own coverage rules, your commercial contract sets its own allowed amount, and locality adjusts the Medicare figures. Confirm both against the CMS 2026 PFS final rule before the 93298 CPT code goes out on a claim.
What CPT 93298 Covers and Which Monitor Qualifies
Subcutaneous Cardiac Rhythm Monitor and ILR
A subcutaneous cardiac rhythm monitor sits under the skin of the chest and records heart rhythm information for months at a time. Clinicians call the same device an implantable loop recorder or an insertable cardiac monitor. Once you’ve defined those terms, ILR and ICM work as shorthand.
The loop recorder CPT code for remote review depends on that implanted design. A wearable patch or a Holter recorder sits outside the body and belongs to another code family. A pacemaker paces the heart and an ICD delivers therapy, so both fall outside this subcutaneous cardiac rhythm monitor service.
Work Included in the Remote Service
The billed work starts when the monitoring system receives recorded rhythm data from the implantable loop recorder. From there, the CPT code for implantable loop recorder review covers analysis of that data, clinical review of the findings, and a report signed by the physician or qualified healthcare professional.
One point trips up new billers. Loop recorder interrogation under the CPT code implantable loop recorder rules represents a monitoring period, not a transmission count. A patient can trigger six alerts from a subcutaneous cardiac rhythm monitor in three weeks and still generate one billable service. Frequency gets its own section below.
Services Outside CPT 93298
| Service Outside This Code | Why It Sits Elsewhere |
|---|---|
| Implanting the monitor | Separate surgical procedure |
| Removing the monitor | Separate surgical procedure |
| In-person device evaluation | Face-to-face service under a different code |
| Pacemaker remote monitoring | Different device family |
| ICD remote monitoring | Different device family |
| Holter monitoring | External recording service |
| Mobile cardiac telemetry | External attended monitoring |
| Remote physiologic monitoring | Different monitoring framework |
The Heart Rhythm Society places the insertable cardiac monitor inside remote device clinic operations and asks practices to build dedicated staffing, connectivity, and communication workflows around it, per the HRS remote device guidance. Staffing is a billing question too. Whoever runs the technical workflow owns the technical component of CPT 93298.
CPT 93297 vs CPT 93298: Choose by Device and Data
CPT 93297 applies to an implantable cardiovascular physiologic monitor. CPT 93298 applies to a subcutaneous cardiac rhythm monitor. The split depends on the device implanted and the data your clinician reviewed.
The CPT 93298 vs 93297 split runs on device type. Since 2024, both codes carry global, professional, and technical indicators, so component billing is available on either one.
| Decision Point | CPT 93297 | CPT 93298 |
|---|---|---|
| Monitor category | Implantable cardiovascular physiologic monitor | Subcutaneous cardiac rhythm monitor |
| Main data | Physiologic cardiovascular data | Recorded heart rhythm data |
| Monitoring purpose | Hemodynamic or physiologic tracking | Rhythm and arrhythmia detection |
| Remote period | Up to 30 days | Up to 30 days |
| Component structure | Global, 26, or TC | Global, 26, or TC |
| Common mistake | Billed for a rhythm-only loop recorder | Billed for a physiologic monitor |
When CPT 93297 Applies
Reach for CPT 93297 when the implanted device tracks physiologic cardiovascular measurements and the report analyzes those measurements. A pulmonary artery pressure sensor sits in a different place again. Remote monitoring of a wireless pulmonary artery pressure sensor maps to 93264, and CPT bars reporting 93297 alongside it.
Plenty of ranking pages still put a CardioMEMS-style sensor on CPT 93297. Check the device record first.
When CPT 93298 Applies
Use CPT 93298 when the implanted device records heart rhythm and the signed report analyzes rhythm episodes. A loop recorder placed after unexplained syncope is the everyday example. The 93297 CPT code doesn’t fit that patient, whatever the vendor portal labels the transmission.
A Three-Step Code Selection Test
Run these three steps in order, every time. First, identify the implanted device from the operative note or the device record. Second, identify the data the clinician analyzed. Third, match the submitted code to what the signed report says.
Worked correctly: a report analyzing recorded rhythm episodes from an implanted loop recorder points to 93298. Worked incorrectly: that same report submitted under 93297 because someone read “implantable monitor” and stopped there.
CMS separates the two codes by monitor and data type, and confirms both received global, professional, and technical indicators under the Physician Fee Schedule for 2024, in its CMS 93297 and 93298 update. That shared structure is exactly why the CPT 93298 vs 93297 decision has to run on device type.
Related Loop Recorder and Remote Monitoring Codes
CPT 93298 does not report insertion, removal, in-person evaluation, pacemaker interrogation, or ICD interrogation. Those services live in separate code families with their own rules.
CPT also blocks several of these combinations outright. Do not report 93298 together with 33285, 93291, 93297, 99091, or 99454. That parenthetical instruction is a CPT rule, so it applies before any payer edit fires.
Monitor Insertion and Removal: 33285 and 33286
CPT 33285 covers insertion of a subcutaneous cardiac rhythm monitor, including programming. The 33285 CPT code description sits with the surgical family, which is why the loop recorder implantation CPT code never doubles as a monitoring charge. CPT 33286 is the loop recorder removal CPT code for the same device.
Two traps here. Implantation doesn’t entitle your practice to bill remote review for that same date, and 33285 gets confused with 93285, the in-person programming device evaluation for the same device. Same-sounding numbers, separate code families.
In-Person Evaluation Codes
In-person device evaluation of a subcutaneous cardiac rhythm monitor uses 93291, not the remote loop recorder CPT code. The report has to show whether the encounter happened remotely or face to face, because that single detail decides the code family. Programming and interrogation are separate concepts, so confirm the current CPT descriptor before assigning either.
Pacemaker and ICD Remote Monitoring Codes
CPT 93294 is the professional component for remote pacemaker monitoring, up to 90 days. CPT 93295 is the professional component for remote ICD monitoring, also up to 90 days. CPT 93296 is the single technical code serving both families.
Those families run on their own clock. CPT limits them to once per 90 days and blocks reporting when the monitoring period runs under 30 days. Copy that logic onto loop recorder interrogation and you generate a frequency denial, because the rhythm-monitor service runs on a 30-day cycle.
| Service | Code | Device and Core Distinction |
|---|---|---|
| Loop recorder insertion | 33285 | Subcutaneous cardiac rhythm monitor, places the device |
| Loop recorder removal | 33286 | Subcutaneous cardiac rhythm monitor, removes the device |
| In-person interrogation | 93291 | Subcutaneous cardiac rhythm monitor, face-to-face encounter |
| Remote rhythm review | 93298 | Subcutaneous cardiac rhythm monitor, remote rhythm-data analysis |
| Remote pacemaker review | 93294 professional, 93296 technical | Pacemaker system, up to 90 days |
| Remote ICD review | 93295 professional, 93296 technical | Implantable defibrillator system, up to 90 days |
One warning on that last row. The 93296 technical code serves pacemakers and defibrillators only. It is not the technical half of CPT 93298. The broader cardiology CPT code guide separates remote monitoring from ECG, echocardiography, catheterization, and the other cardiovascular families if you need the wider map.
What Changed After G2066, and What Is Current in 2026
G2066 Ended After December 31, 2023
CMS deleted G2066 effective January 1, 2024. Before that date, your technical entity billed G2066 for the data acquisition side of remote interrogation on implanted monitors. Novitas removed the code from its cardiac monitoring article in the same annual update, as the revision history on the CMS cardiac monitoring article confirms.
Anyone asking what replaced G2066 gets a short answer: no standalone code replaced it. CMS folded the technical component work into 93297 and 93298 instead. Old payer PDFs and vendor cheat sheets still show the retired model, so audit your claim templates this quarter.
Why 93297 and 93298 Became Split Billable
CMS added practice expense inputs to both codes for 2024 and assigned them global, professional, and technical indicators. That change is what replaced G2066 in practice. It’s also why a monitoring company can bill the technical component while a cardiology group bills the professional component.
Hospital outpatient departments got a different answer. CMS assigned both codes OPPS status indicator Q1 under APC 5741 effective January 1, 2024. Q1 means STV-packaged, so the payment lands separately only when the code is the sole service on the claim.
What Actually Changed in 2026
Three finalized CY2026 policies move the number on a CPT 93298 claim. CMS split the conversion factor into $33.57 for qualifying APM participants and $33.40 for everyone else. CMS also applied a 2.5% efficiency adjustment that reduces work RVUs on non-time-based services.
Third, CMS cut the facility practice expense RVUs allocated on work RVUs to half the non-facility allocation, which widens the gap between office and hospital settings. New geographic practice cost indices phase in over two years starting this year. CMS posted the July files as CMS July 2026 RVU file RVU26C.
| Date | Change |
|---|---|
| January 1, 2024 | CMS deleted the old technical code and gave 93297 and 93298 global, 26, and TC structure |
| January 1, 2024 | OPPS status indicator Q1 and APC 5741 take effect for both codes |
| January 1, 2026 | Separate QP and non-QP conversion factors apply |
| January 1, 2026 | Efficiency adjustment, facility practice expense change, and new GPCIs take effect |
| July 1, 2026 | CMS posts the RVU26C and July national payment files |
What Did Not Change in 2026
The device distinction held. So did the up to 30 days service period and the 10-day floor. Anyone asking is G2066 still valid in 2026 should treat the code as retired for Medicare. And no CMS source establishes a 91-day minimum for this code, whatever the SERP says.
How to Bill CPT 93298 Globally or With Modifiers 26 and TC
Submit no modifier when one qualified billing entity performs and documents both portions. Append modifier 26 when your entity performed only the physician or qualified healthcare professional analysis, review, and report.
Append modifier TC when your entity performed only the technical portion. The claim has to match who did the work and who owns it. Payer enrollment and contract terms still need checking before submission.
| Billing Arrangement | Claim Structure | Operational Requirement |
|---|---|---|
| One entity performs both portions | 93298 global, no modifier | Documentation supports both portions |
| Physician group interprets only | 93298-26 | Signed analysis and report on file |
| Facility or monitoring entity handles data only | 93298-TC | Acquisition, processing, and distribution evidence |
| Two entities split the service | One bills 93298-26, one bills 93298-TC | No duplicate global claim from either side |
| Ownership is unclear | Hold the claim | Confirm contract, enrollment, and workflow first |
Global Billing When One Entity Performs Both Components
CPT 93298 global billing requires one billing entity to stand behind both halves. Seeing both components inside your EHR isn’t the test. The test is whether your organization performed the technical workflow and the interpretation.
Ask one question at the front of every monitoring contract: who receives the transmissions and who processes them? A third party in that chain changes component ownership, and CPT 93298 global billing stops being correct.
Modifier 26 for the Professional Component
Modifier 26 identifies the professional component. The CPT 93298 modifier 26 decision comes down to who analyzed the rhythm data and signed the report. A raw transmission landing in a portal doesn’t support 93298-26 on its own.
Skip CPT 93298 modifier 26 when your entity properly bills the global service. Adding it there understates the claim and conflicts with your own technical charge.
Modifier TC for the Technical Component
Modifier TC identifies the technical component. The CPT 93298 TC modifier belongs to the billing entity that acquires the data, processes transmissions, provides technician review and support, and distributes results. Receiving a finished report doesn’t earn 93298-TC.
Confirm payer enrollment before your technical entity bills 93298-TC. Some plans reject a technical-only claim from an organization enrolled in the wrong category, and that rejection reads like a coding problem.
Split Billing Between Two Entities
Split billing example that works: a monitoring entity runs the technical workflow and submits the CPT 93298 TC modifier claim, while the cardiologist reviews the rhythm data, signs the report, and submits 93298-26. Payer and enrollment rules still apply to both claims.
Split billing example that fails: the physician group and the monitoring entity both submit the global code. The payer sees duplicate component billing, and one or both claims deny or get recouped months later.
Four modifier warnings before you submit. Modifier 59 is not a routine modifier on CPT code 93298. An X modifier is never automatic. Modifier 25 belongs on a separately identifiable evaluation and management code, not on the diagnostic procedure. Check current NCCI edits before any distinct-service modifier goes on the claim.
CMS publishes payment amounts, relative value units, and policy indicators, including modifier applicability and locality adjustment, through the CMS fee schedule lookup. Pull the indicators for 93298 before your team settles on a component strategy.
Practices running several providers, facilities, or monitoring partners need a defined cardiology revenue cycle management workflow so each claim reflects the billing entity that performed the component. Split billing breaks down at the handoff, not at the keyboard.
When component ownership is unclear across your practice and your monitoring partners, a focused workflow review shows where duplicate, missing, or misdirected billing starts.
How Often Can CPT 93298 Be Billed?
CPT instructs you to report 93298 once per 30 days, and it blocks the code when the monitoring period runs under 10 days. One unit covers one documented monitoring period of up to 30 days.
Payers layer their own edits on top of that CPT rule. Check the payer’s current frequency edit, the dates inside the report, and any previously billed period before the claim goes out.
One Unit Represents a Monitoring Period
One unit of CPT 93298 represents the documented remote interrogation service. The unit doesn’t attach to a transmission, an alert, or a symptomatic event. Several transmissions can fall inside one monitoring period, and one alert doesn’t create a second billable unit.
Your report should name the period the claim represents. A device clinic that logs start and end dates on every interpretation settles most frequency disputes without a phone call.
What Up to 30 Days Means
Four separate rules hide behind the CPT 93298 30-day rule, and billers collapse them into one. The CPT service period covers up to 30 days. The CPT reporting rule allows one report per 30 days. A payer frequency limit is a separate edit. And a payer’s date of service instruction is separate again.
Novitas states the once per 30 days instruction for external mobile telemetry codes 93228 and 93229 in its CMS cardiac monitoring guidance, and doesn’t repeat that sentence for 93298. The CPT parenthetical still governs, so treat the 30-day cycle as a coding rule and the submission date as a payer question.
Check for Overlapping Billing Periods
Run this check before submission. Pull the start and end dates from the current report, open the previous CPT code 93298 claim, and compare the two service periods.
Flag any overlapping dates, confirm which entity billed which component, and review the payer’s frequency edit. When you can’t verify the period, hold the claim rather than testing it against the payer’s system.
Verify the Payer’s Frequency Rule
| Rule Type | What Your Team Verifies |
|---|---|
| CPT service definition | Period covers up to 30 days, minimum 10 days, one report per 30 days |
| Medicare national rule | Current Physician Fee Schedule indicators and applicable MAC guidance |
| Medicaid rule | State program manual and managed care organization instructions |
| Commercial rule | Medical policy language and the payer contract |
| Internal billing control | Prior service period and the component already billed |
Medicare, Medicaid, Medicare Advantage, and commercial claims don’t process under identical edits. Anyone asking how often can CPT 93298 be billed needs both answers: the CPT rule sets the cycle, and the payer sets the submission mechanics.
CPT 93298 Documentation Requirements
The medical record must identify the patient and the service dates, and it must support both the procedure and the diagnosis you submitted. The professional portion needs analysis, review, and a signed report.
The technical portion needs evidence that your entity performed the technical work. Your team should be able to name the monitoring period and the responsible billing entity from the record alone.
CMS requires records to stay available to the contractor, to carry patient identification and a legible practitioner signature, to support the selected diagnosis and procedure, and to include the monitoring interpretation with the interpreting physician’s name, per Novitas in its CMS documentation requirements. Coverage criteria sit in the related LCD L39490.
Documentation for the Professional Component
| Element | What the Record Shows |
|---|---|
| Patient identification | Name and identifying information on every page |
| Device | Type of subcutaneous cardiac rhythm monitor in place |
| Monitoring period | Start and end dates the interpretation covers |
| Rhythm findings | Relevant episodes captured during the period |
| Clinical interpretation | Physician or qualified healthcare professional analysis of those findings |
| Action taken | Assessment or plan when the findings warrant one |
| Signature and date | Legible signature of the interpreting clinician and the review date |
A raw device transmission is not a physician interpretation. The signed report should show the clinician analyzed and reviewed the data. An abnormal result is never a condition of billing, though the record still has to support why the service was medically necessary.
Documentation for the Technical Component
Read the next table as recommended technical audit evidence, not as a list of universally mandated CMS fields. These are the artifacts that hold up when a payer asks your technical entity to prove the work.
| Recommended Technical Audit Evidence | Purpose |
|---|---|
| Data receipt confirmation | Shows transmissions arrived during the billed period |
| Device and patient matching | Ties the transmission to the correct chart |
| Transmission processing record | Documents the technical work performed |
| Technician review and support log | Evidences the review and support activity |
| Results distribution record | Shows results reached the ordering clinician |
| Monitoring period tracking | Supports the dates on the claim |
| Technical entity identity | Names the organization billing 93298-TC |
Monitoring Period and Transmission Records
Start and end dates in the CPT 93298 transmission log should match the billed period. The log ties to one patient and one device. Several alerts can occur inside a single service period without changing the unit count.
Never represent missing transmissions as completed technical work. Your billing record should also name which organization performed each component, because that single field settles most component disputes at appeal.
Final Audit-Ready Checklist
Seven items close out CPT 93298 documentation requirements: correct patient and device, documented monitoring period, supporting transmission record, completed professional interpretation, responsible practitioner signature, medical necessity in the record, and the correct billing entity and component.
Run that checklist before submission and you catch the 93298 CPT code description mismatches that surface later as denials. The standard: someone outside your office should reach the same conclusion from the same chart.
CPT 93298 Reimbursement in 2026
CPT 93298 reimbursement 2026 figures shift with the component billed, the geographic locality, facility status, the clinician’s participation category, and the payer contract. Medicare doesn’t publish one universal amount for every claim.
The safe approach hasn’t changed: verify the global, professional, or technical payment inside the current CMS files, then compare the allowed amount against the remittance you receive.
How Medicare Calculates Payment
Medicare builds the payment in two steps. Geographic practice cost indices adjust each relative value unit, then the applicable conversion factor turns the total into dollars.
| Step | Calculation |
|---|---|
| Step 1 | Adjusted work RVU + adjusted practice expense RVU + adjusted malpractice RVU = total adjusted RVUs |
| Step 2 | Total adjusted RVUs x applicable conversion factor = estimated Medicare payment |
Two 2026 policies push against each other inside that math. CMS finalized conversion factors of $33.57 for qualifying APM participants and $33.40 for everyone else, and separately applied a 2.5% efficiency adjustment that lowers work RVUs on non-time-based services. Conversion factors are not the code’s payment.
Global, Professional, and Technical Payment
Verify seven values before quoting a number internally: global, modifier 26, modifier TC, facility, nonfacility, QP, and non-QP. Don’t assume the global rate equals a sum copied off a third-party site.
How to Verify the Current Amount
Open the July 2026 CMS relative value file, find the 93298 CPT code, and review the PC and TC indicators. Then open the July 2026 national payment file, select QP or non-QP, and confirm the facility and nonfacility amounts.
Check your practice locality last, then compare the allowed amount on the electronic remittance advice. CMS identifies RVU26C as the July 2026 Physician Fee Schedule release in the CMS July 2026 RVU file, and publishes a matching national payment file with separate QP and non-QP amounts.
One number to avoid repeating: no verified CMS source supports a single flat CPT 93298 Medicare reimbursement figure applied to every claim. Pages quoting one specific dollar amount for all localities and components are guessing.
Commercial Payer Reimbursement
Your contract controls the commercial allowed rate. A payer can price the global service, the 26 component, and the TC component on three different lines of its fee schedule, so compare each against the contracted amount rather than the Medicare figure.
A paid claim can still be underpaid. When the remittance lands below contract, structured AR follow-up services should compare the remittance, the component billed, and the fee schedule before anyone writes the balance off.
ICD-10 and Medical Necessity for CPT 93298
The diagnosis on the claim must match the documented reason for remote cardiac rhythm monitoring. A diagnosis code doesn’t support payment by itself.
Your medical record should explain the symptoms, the known rhythm condition, the abnormal finding, or the clinical suspicion that led to continued monitoring. That explanation is the medical necessity, and the ICD-10 code only points at it.
The Diagnosis Must Match the Clinical Reason
Clinical indications that commonly support this service include syncope, dizziness, palpitations, suspected arrhythmia, atrial fibrillation, conduction disturbance, and abnormal cardiac testing. Treat those as categories, not as a coverage promise.
Novitas Solutions lists 153 ICD-10 codes that support medical necessity for a code group including 93298, per its CMS medical necessity guidance. That list is local coverage policy tied to LCD L39490, covering Jurisdictions JH and JL: Colorado, New Mexico, Oklahoma, Texas, Arkansas, Louisiana, Mississippi, Delaware, the District of Columbia, Maryland, New Jersey, and Pennsylvania.
Practices outside those twelve jurisdictions need their own MAC policy. Treating a Novitas list as a national list builds a denial pattern fast.
Avoid Diagnosis Code Shortcuts
Five shortcuts cause most medical necessity denials on this service. Picking an unspecified diagnosis because it looks payable. Using a device presence code without documenting why monitoring continued.
Copying the diagnosis from an old claim. Reusing the implant diagnosis for every later monitoring period. And borrowing the diagnosis list from the physiologic monitor code without checking which device sits in the patient’s chart.
Verify MAC and Payer Coverage
Four steps close this out. Confirm the clinical indication in the chart, select the most specific supported diagnosis, review the applicable MAC or payer policy, and confirm the note supports the code before the claim leaves your queue.
CPT 93298 Denial Reasons and How to Fix Them
CPT 93298 denial reasons cluster in five places: the device, the service period, the component billed, the supporting report, and the payer’s current edit. Work them in that order.
Don’t resubmit the same claim unchanged. Decide first whether the claim needs a corrected submission, a formal appeal, a component adjustment, or a payer escalation, because those four paths have different deadlines.
| Denial Category | Verify | Corrective Action | Prevention |
|---|---|---|---|
| Wrong device | Device record against the report | Correct the code when documentation supports it | Device-to-code mapping at intake |
| Wrong component | Global, 26, or TC ownership | Correct the component and resubmit | Billing entity profile per contract |
| Duplicate period | Current and prior service dates | Correct the overlap or appeal with dates | Period tracking log |
| Missing report | Signed interpretation on file | Obtain or locate valid documentation | Provider work queue with due dates |
| Medical necessity | Diagnosis against the clinical note | Correct or appeal with the supporting record | Prebill diagnosis review |
| NCCI edit | Current code pair and modifier indicator | Apply a modifier only when the edit supports it | Quarterly edit check |
| MUE issue | Units billed against the date of service | Correct units or appeal with records | Unit validation rule |
| Payer system error | Policy language against the remittance | Request reprocessing or appeal | Payer bulletin monitoring |
Wrong Device or Code Family
Confirm the patient has a subcutaneous cardiac rhythm monitor rather than a pacemaker, an ICD, an external monitor, or a physiologic monitor. Compare the submitted code against the report, and change the code only when the documentation supports the change. Never recode a claim to make it payable.
Global and Component Billing Conflicts
Check whether another entity billed the opposite component, and look for two global claims covering the same period. Review the monitoring company agreement, confirm whether the physician group submitted 26 or global, and read the remittance before anyone resubmits.
Frequency and Period Overlap
Compare start and end dates against the prior remittance, then review the payer’s frequency logic. Decide whether the denial is valid under the CPT 30-day cycle or whether the payer applied an edit that doesn’t fit this code.
NCCI, MUE, and Payer System Errors
CMS uses NCCI procedure-to-procedure edits to prevent payment on code combinations that shouldn’t be reported together unless a clinically appropriate modifier applies. The current quarter edits took effect July 1, 2026, per the CMS NCCI PTP edits. Our CO-4 modifier denial guide walks the modifier-conflict path in detail.
CMS defines a medically unlikely edit as the maximum units reported on most for the same code, provider, beneficiary, and date of service, in the CMS Medicare MUE files. Not every code carries a published MUE, and CMS keeps some values confidential, so a units denial isn’t always traceable to a public table.
Payer configuration causes denials too. Indiana Medicaid published BT2025127 on August 28, 2025, confirming that claims for 93298 billed with modifier 26 had been denying incorrectly. The IHCP corrected its claim-processing system and reprocessed claims for dates of service on or after August 28, 2023, with adjusted remittances beginning October 15, 2025, per Indiana Medicaid bulletin BT2025127.
Keep that example in front of your AR team. A denial on the CPT code 93298 claim can come from payer configuration rather than your coder’s work, and reading the bulletin history is the only way to tell.
When the same denial keeps returning, the claim is exposing a workflow problem. A focused claim denial management services review shows whether the break sits in device mapping, component ownership, documentation, or payer follow-up.
A Clean Claim Workflow for CPT 93298
Seven Checks Before Claim Submission
Run these seven CPT 93298 checks in order, on every claim: confirm the implanted device, match the device and data to the correct code, verify the monitoring period against the report, identify global, professional, or technical ownership, confirm the interpretation and technical evidence exist, validate diagnosis, payer policy, NCCI edits, and units, then compare the claim against the payment you expect.
A claim shouldn’t leave your billing queue until the device, the period, the component, the documentation, and the payer rule all tell the same story. When one of those five disagrees with the others, the payer finds it before you do.
When Full-Service RCM Becomes Practical
Outsourcing earns its keep once a practice runs several billing entities, multiple device platforms, recurring component denials, unworked underpayments, inconsistent provider signatures, or new physicians waiting on payer enrollment.
One O Seven RCM connects coding, claim submission, denial management, payment posting, AR follow-up, billing audits, and provider credentialing under one team, so nobody points at another vendor when a device-clinic claim stalls.
One O Seven RCM Pricing for Cardiology Practices
| One O Seven RCM Service | Pricing |
|---|---|
| Full-service medical billing and RCM | 3% of total collections |
| Upfront fee | None |
| Setup charges | None |
| Provider credentialing | $107 per payer |
One O Seven RCM is one of the most affordable and experienced full-service billing companies working with cardiologists and device clinics. Our RCM services run at 3% of total collections, with no upfront fee and no setup charges. Provider credentialing is $107 per payer.
That pricing puts specialty-trained cardiology billing inside reach of independent device clinics. A medical billing audit is the usual starting point, and provider credentialing services handle enrollment when a new clinician joins the monitoring roster.
When your team tracks device periods, component ownership, payer edits, and unpaid claims in separate spreadsheets, the gaps stay invisible until the remittance arrives. We will review the complete workflow and show you where claims stop.
Request a free billing audit: Request a Free Billing Audit
Frequently Asked Questions About CPT 93298
What Is the 93298 CPT Code Description?
The 93298 CPT code description covers remote interrogation device evaluation of a subcutaneous cardiac rhythm monitor for a period of up to 30 days. It includes analysis of recorded rhythm data, clinical review, and a report by a physician or qualified healthcare professional. You can bill it globally or split it into professional and technical components.
What Is the CPT Code for Implantable Loop Recorder Remote Monitoring?
CPT 93298 is the CPT code for implantable loop recorder remote rhythm review. CPT 33285 reports insertion of the monitor, and 33286 reports removal. The 93298 CPT code never covers the procedure itself, so match the code to the service your clinician performed and documented on that date.
Can CPT 93297 and CPT 93298 Be Billed Together?
No. CPT instructs you not to report 93298 together with 93297, because the two codes describe different monitor and data categories. Don’t submit both to capture professional and technical components, since each code carries its own 26 and TC structure. Verify which device the patient has, then bill the CPT code 93297 or the rhythm-monitor code alone.
Is G2066 Still Valid in 2026?
No. CMS deleted G2066 effective January 1, 2024, and Medicare billing now uses the component structure assigned to 93297 and 93298. Old vendor articles and claim templates still show the retired workflow. Check your non-Medicare payer instructions before you change an existing claim, because some plans update their manuals on a different schedule.
Does a Device Alert Create Another Billable Service?
No. A device alert doesn’t create another unit of CPT 93298. The code represents one documented remote interrogation period, and CPT limits reporting to once per 30 days with a 10-day minimum. Check the current period, the prior claim, the report, and the payer’s frequency rule before adding a second unit.
Getting CPT 93298 Right, Claim After Claim
Correct billing on this code comes down to five things agreeing with each other: the device, the monitoring period, the component, the documentation, and the payer rule. Retired G2066 guidance shouldn’t drive a single current Medicare claim.
Match the claim to the work your team performed, and most of these denials stop happening. If yours keep returning, request a free billing audit and we’ll show you where the workflow breaks.
Policy Sources Reviewed
Policy sources reviewed: July 31, 2026. Update this date only when the source review is repeated.
Editorial Disclosure
This article is intended for provider billing education. CPT, Medicare, Medicaid, MAC, and commercial payer policies may change. Verify the current code set, applicable coverage policy, fee schedule, and payer contract before submitting a claim. CPT is a registered trademark of the American Medical Association.
Sources
| Source Group | Reference |
|---|---|
| CMS coding and payment | Novitas Solutions, Billing and Coding: Ambulatory Electrocardiograph (AECG) Monitoring, A59268; LCD L39490; CMS Physician Fee Schedule; CMS PFS Relative Value Files, RVU26C (July 2026 release) |
| CMS OPPS | MLN Matters MM13568, April 2024 Update of the Hospital Outpatient Prospective Payment System (CR 13568, Transmittal 12552) |
| CMS NCCI and MUE | Medicare NCCI Procedure-to-Procedure Edits, effective July 1, 2026; Medicare NCCI Medically Unlikely Edits, effective July 1, 2026 |
| Cardiology professional guidance | 2023 HRS/EHRA/APHRS/LAHRS Expert Consensus Statement on Practical Management of the Remote Device Clinic |
| State payer update | Indiana Health Coverage Programs bulletin BT2025127, August 28, 2025 |
| Code set | AMA CPT 2026 code set and the parenthetical instructions accompanying 93297 and 93298 |