Last updated: July 14, 2026
The table below shows why manual tracking breaks down in 2026. Nine codes carry distinct timing rules, minimums, and documentation requirements, and each one must be monitored separately to avoid denials.
| CPT Code | Service Description | Key 2026 Requirement |
|---|---|---|
| 93294 | Remote interrogation, single- or dual-chamber pacemaker (professional) | Minimum 30-day monitoring period per calendar year; documented clinical interpretation required |
| 93295 | Remote interrogation, ICD including CRT-D (professional) | Minimum 30-day monitoring period; billed per monitoring period, not per transmission |
| 93296 | Technical component for 93294/93295 | Billed with 93294 or 93295; covers data receipt, processing, and formatting |
| 93297 | Remote interrogation, implantable loop recorder (ILR/ICM) | No 30-day minimum; billed per clinically indicated transmission period |
| 93298 | ILR/ICM transmission interpretation (2026 updated) | CMS did not reduce the monitoring window for CPT 93298 in 2026; it still covers up to 30 days |
| 99453 | RPM setup and patient education | One-time per patient; documented consent and device education required |
| 99454 / 99445 | RPM device supply — 16+ days (99454) or 2–15 days (99445, new in 2026 at ~$52/month) | Mutually exclusive; only one device supply code per patient per 30-day period |
| 99457 | RPM treatment management, first 20 minutes | Requires at least one interactive communication with patient per billing month |
| 99458 | RPM treatment management, each additional 20 minutes | Time must be documented in real time and attributable to eligible staff |
| 99470 | RPM management, 10–19 minutes (new in 2026 at ~$44/month) | Documentation must show the explicit 10–19 minute range, not just "less than 20" |
Rhythm360 automates the tracking, documentation, and reporting for every code in this table. That removes the manual reconciliation that causes missed billing and claim denials.

The core CPT codes for remote cardiac device checks are 93294 (pacemaker), 93295 (ICD/CRT-D), and 93296 (technical component). For implantable loop recorders, the relevant codes are 93297 and 93298.
The 2023 Heart Rhythm Society consensus statement covers remote monitoring for pacemakers, ICDs, CRTs, and ILRs. Accurate billing for these codes is a core operational requirement, not an optional revenue boost. As noted above, CPT 93298's 30-day window was unchanged in 2026.
Rhythm360 tracks monitoring periods, flags billable events, and generates the clinical interpretation documentation each code requires. This removes the manual burden from device technicians and billing staff.
Billing RPM for cardiology requires meeting CMS requirements across six documented domains before a claim goes out. CMS 2026 guidance names incomplete or inconsistent documentation as the top cause of RPM denials, including missing consent records, vague enrollment notes, and monitoring activity that isn't tied to clinical decisions.
A compliant RPM billing workflow for cardiology follows this sequence:
Rhythm360 automates transmission-day tracking, time logging, and consent documentation, catching compliance gaps before claims go out rather than after they're denied. That same reliability extends to how the platform handles the data itself.
Data reliability is the prerequisite for every downstream billing and clinical outcome. Rhythm360 achieves greater than 99.9% transmissibility by combining redundant OEM data feeds, HL7 and API ingestion, XML parsing, and computer vision-powered OCR for unstructured PDFs. When an OEM server goes down, the redundant feed architecture prevents any transmission window from being lost.
AI-powered data extrapolation fills gaps and cross-references data points for accuracy, giving clinicians confidence in the information driving their decisions. University of Chicago Medicine (UCM) reviewed more than 73,000 reports annually through Rhythm360 in 2025, averaging over 18,000 per quarter. That volume demands infrastructure-level reliability, not manual reconciliation.
EHR integration is not a feature. It is a compliance requirement. CMS 2026 guidance requires that RPM services be furnished as clinically integrated services, with monitoring activity tied to clinical decision-making in the patient record. A platform that can't write back to the EHR creates documentation gaps that become audit liabilities.
Rhythm360 offers deep, bi-directional integration with these EHR systems:
Data flows both ways. Inbound patient demographics, active problem lists, and ordering providers populate Rhythm360 automatically. Outbound encounter notes, alert documentation, time logs, and monthly summary reports push back to the patient chart. Full implementation, including EHR setup, typically takes a few days to a few weeks with minimal IT burden on the practice.
Alert fatigue is a documented patient safety risk. A 213-hospital cross-sectional study found that most nurses feel overwhelmed by the number of clinical alarms. A 2026 analysis of more than 65.6 million alarms across ICUs and an IMCU found that 88% were technical rather than physiologic. The overwhelming majority of notifications carry no actionable clinical signal.
Rhythm360's AI-powered alert triage system filters non-actionable noise and surfaces clinically significant events in priority order. Practices that add optional 24/7/365 CCT oversight, supervised by physicians, layer human review on top of that filtered queue. Together, these two layers compress the time between a critical event and clinician action, producing an 80% reduction in response times.
The practical impact shows up clearly in a Saturday-morning AFib flag. A clinician gets a prioritized notification of new-onset atrial fibrillation, reviews the transmission on the Rhythm360 mobile app, and starts anticoagulation protocols that same afternoon. Without that workflow, the event may not surface until Monday, a delay that carries real stroke risk. UCM's implementation of Rhythm360 let clinicians review more transmissions daily and catch more abnormalities, supporting earlier interventions. These clinical gains only matter if the billing side captures every eligible code, and that's where revenue leakage typically starts.
Revenue leakage in remote monitoring is rarely a billing department problem. It's a data and workflow problem. When transmission-day counts are tracked manually, when time logs are vague, and when billable events aren't flagged at the point of care, claims go unfiled or get denied. Rhythm360's automated CPT documentation addresses each of those failure points.
The revenue opportunity scales across practice sizes:
Practices implementing Rhythm360 have achieved up to 300% increases in revenue through optimized CPT code capture, better staff efficiency, and new RPM service lines for heart failure and hypertension management. UCM reported improved billing and accountability for patients after integrating Rhythm360. A 2024 NYU Langone cardiology division study found an average ROI of 22.2% per patient for an RPM hypertension program at 55% patient compliance, confirming positive ROI from a large health system's clinical division.
Clinical decisions in remote monitoring don't wait for Monday morning. Rhythm360's secure, HIPAA-compliant mobile app lets electrophysiologists, cardiologists, NPs, PAs, and CCTs review transmissions, sign reports, and coordinate care from any location. The mobile workflow isn't a convenience feature. It's the mechanism that turns a Saturday-morning alert into a same-day intervention.
Mobile access also fixes a structural vulnerability in practices that rely on a single "super-user" for device data access. When that person is unavailable, patient monitoring continuity breaks down. Rhythm360's mobile platform distributes access across the care team, so critical events get reviewed regardless of who's on call or where they are.
Practices managing thousands of CIED patients, like UCM, mentioned earlier, need a platform that functions at full capability outside the four walls of the clinic. Rhythm360 is built for that reality.
CPT 93298 and CPT 99454 serve different patient populations and device types. CPT 93298 is a cardiac-specific code covering physician interpretation of transmissions from an implantable loop recorder or insertable cardiac monitor, with its 30-day window unchanged for 2026. CPT 99454 is a general remote physiologic monitoring device supply code requiring at least 16 days of physiologic data transmission per 30-day period from an FDA-cleared device. For patients with fewer than 16 transmission days, the new 2026 code CPT 99445 provides a billing pathway at approximately $52 per month. CIED remote monitoring typically bills under the cardiac-specific 93294 through 93298 series rather than the general RPM codes, though practices managing heart failure and hypertension alongside CIED patients use both code sets.
The most common denial triggers in 2026 are billing CPT 99454 below the 16-day transmission threshold, missing or inadequately documented patient consent, expired physician orders, and vague time log entries for CPT 99457 and 99458. Entries like "reviewed RPM data" without date, duration, activities, and staff attribution create real audit liability. Practices that use an automated remote monitoring platform to track transmission days, enforce documentation standards, and flag compliance gaps before submission prevent denials instead of managing them after the fact. Internal compliance audits covering a random 10-20% sample of active patient records, run at least quarterly, are a recommended safeguard for any RPM program.
Rhythm360 is vendor-neutral. It ingests and normalizes data from all major CIED manufacturers, including Medtronic, Boston Scientific, Abbott, and Biotronik, into a single dashboard without requiring staff to log into separate OEM portals. Other platforms in the market, including Paceart, Murj, PaceMate, Implicity, Rhythm Management Group, and Octagos, address various pieces of cardiac remote monitoring. Rhythm360 combines the transmissibility, billing automation, EHR integration, alert triage, and mobile access capabilities covered above into a single platform that implements in days to weeks.
Yes. Rhythm360 provides distinct but integrated service lines for Rhythm-CIED (pacemakers, ICDs, CRT devices, and implantable loop recorders) and for heart failure and hypertension remote physiologic monitoring. A cardiology practice can manage rhythm disorders under the 93294 through 93298 code set and chronic disease management under the 99453 through 99458 and new 2026 codes within the same dashboard. This eliminates the data fragmentation that happens when CIED monitoring and RPM programs run on separate systems, and it helps practices spot patients who qualify for both service lines without adding administrative complexity.
Fragmented OEM portals, manual transmission tracking, and vague time documentation aren't just compliance inconveniences. They're revenue and patient safety risks. The 2026 CPT code landscape, with its new sub-threshold billing codes, tighter documentation requirements, and closer scrutiny of time-based claims, rewards practices with automated infrastructure and penalizes those without it.
Rhythm360 delivers the eight capabilities covered above: automated documentation for every relevant CPT code, industry-leading data transmissibility, fast EHR integration, AI-powered alert triage with optional CCT oversight, substantial revenue lift, and mobile access for same-day interventions. It's built for the operational and clinical realities of cardiology in 2026.
Schedule a demo to see how Rhythm360 maximizes remote monitoring CPT code billing for your cardiology practice.

