CurrentmediviewcurativePolicy MM-PNP-009

Cardiac Event Monitors Policy

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Clinical policy governing medical necessity and coverage criteria for external intermittent event monitors, mobile cardiovascular telemetry, implantable loop recorders, and long-term external ECG monitoring for Curative Health Plan; applies to Medical UM Department processes and providers requesting these services.

Policy Summary

Payermediviewcurative

PolicyCardiac Event Monitors Policy

Policy CodePolicy MM-PNP-009

Change TypeNo material change

Effective DateOct 1, 2023

Next Review Date

Key ActionDocument clinical indications that match the specific device criteria when submitting requests; requests not meeting criteria or repeat studies within 1 year are subject to medical necessity review.

SourceLink

POLICY UPDATE CHANGES

No material clinical or coverage changes in this revision.

4device categories

1 yearrepeat-study review interval

multipleexperimental items

1appendix referenced

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CurrentmediviewcurativePolicy MM-PNP-009

Cardiac Event Monitors Policy

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Policy Summary

Payermediviewcurative

PolicyCardiac Event Monitors Policy

Policy CodePolicy MM-PNP-009

Change TypeNo material change

Effective DateOct 1, 2023

Next Review Date

SourceLink

POLICY UPDATE CHANGES

No material clinical or coverage changes in this revision.

4device categories

1 yearrepeat-study review interval

multipleexperimental items

1appendix referenced

document control items

Coverage Criteria for Cardiac Monitoring Devices

External Intermittent Cardiac Event Monitors

Covered when ANY one of the following indications is met:

External Intermittent Monitor Indications: To document a suspected arrhythmia in persons with a non-diagnostic Holter monitor or 48-hour telemetry, or in persons whose symptoms occur infrequently (less frequently than daily) such that the arrhythmia is unlikely to be diagnosed by Holter monitoring; OR to document ST segment depression for suspected ischemia; OR to document benefit after initiating drug therapy for an arrhythmia; OR to document recurrence of an arrhythmia after discontinuation of drug therapy; OR to document results after an ablation procedure for arrhythmia; OR to evaluate syncope and lightheadedness in persons with a non-diagnostic Holter monitor or 48-hour telemetry, or in persons whose symptoms occur infrequently (less frequently than daily) such that the arrhythmia is unlikely to be diagnosed by Holter monitoring.symptoms less frequently than daily

External loop recorders are considered experimental/investigational for all other indications.

Mobile Cardiovascular Telemetry (MCT)

Covered when EITHER criterion 1 or 2 is met:

MCT Criterion 1: Evaluation of recurrent unexplained presyncope, syncope, palpitations or dizziness when BOTH: (a) a cardiac arrhythmia is suspected as the cause; AND (b) the member has a nondiagnostic Holter monitor or 48-hour telemetry, or symptoms occur infrequently (less frequently than daily) such that the arrhythmia is unlikely to be diagnosed by Holter monitoring.symptoms less frequently than daily

MCT Criterion 2: Evaluation for suspected atrial fibrillation as the cause of cryptogenic stroke in members who have had a nondiagnostic Holter monitor or 48-hour telemetry.

MCT is considered experimental/investigational for indications other than those listed.

Implantable Loop Recorder

Covered when ALL of the following are met:

Implantable ILR Basic: A cardiac arrhythmia is suspected as the cause of the symptoms; AND either (1) for persons with heart failure, prior myocardial infarction, or significant ECG abnormalities, noninvasive ambulatory monitoring consisting of 30-day pre-symptom external loop recordings or MCT fails to establish a definitive diagnosis; OR (2) for persons without those risk factors, symptoms occur so infrequently and unpredictably (less frequently than once per month) that noninvasive ambulatory monitoring (MCT or external loop recorders) are unlikely to capture a diagnostic ECG.< once per month for low-risk persons

Also covered for evaluation of recurrent unexplained pre-syncope, syncope, seizures, palpitations, or dizziness when a cardiac arrhythmia is suspected and Holter/48-hour telemetry is nondiagnostic or symptoms are infrequent; electrophysiologic study (EPS) is not required prior to insertion.

Long-term External ECG Monitoring (>48 hours)

Covered when ANY of the following are met:

Long-term ECG Indications: To evaluate syncope and lightheadedness in persons with a non-diagnostic Holter monitor or 48-hour telemetry, or in persons whose symptoms occur infrequently (less frequently than daily) such that the arrhythmia is unlikely to be diagnosed by Holter monitoring; OR to document an arrhythmia in persons with a non-diagnostic Holter monitor or 48-hour telemetry, or in persons whose symptoms occur infrequently (less frequently than daily) such that the arrhythmia is unlikely to be diagnosed by Holter monitoring.>48 hours monitoring

Devices and indications not specifically listed as covered in this policy are considered experimental and investigational. The policy provides an illustrative (not all‑inclusive) list of technologies considered experimental/investigational, including but not limited to Biotronik BioMonitor, CardioPatch, Kardia Mobile (AliveCor), mobile patient management systems (e.g., BodyGuardian, iHEART), self‑monitoring ECG technologies, ViSi Mobile Monitoring System, and use of Zio Patch for documenting response after initiation of antiarrhythmic drug therapy. These devices and indications are not covered because their clinical value has not been established.

Reference documents, regulatory authority, internal references, external references, and collaborating departments are all listed as N/A in the document control sections. There are no external or departmental reference documents or collaborators specified in the sections provided.

Use of cardiac event monitors for any indication other than those explicitly listed as covered (external intermittent monitors, mobile cardiovascular telemetry, implantable loop recorders, and long‑term external ECG monitoring) is considered experimental and investigational and therefore not medically necessary. The policy states that monitors applied outside the specified indications lack established effectiveness and are excluded from coverage.

Provider Actions, Documentation, and Authorization

Prior Authorization

Medical necessity review required

Requests that do not meet the medical necessity criteria or requests for repeat studies within 1 year of a previous study are subject to medical necessity review prior to approval.

Note

Prior authorization

No explicit prior authorization requirement is stated in these sections of the policy.

Step Therapy

Expect noninvasive monitoring prior to implant in many cases

For implantable loop recorder placement, noninvasive ambulatory monitoring (30-day pre-symptom external loop recordings or MCT) is expected to have failed to establish a diagnosis in higher‑risk patients, or for persons without those risk factors, symptoms must be so infrequent (less than once per month) that noninvasive monitoring is unlikely to capture a diagnostic ECG before considering implant.

Background

Cardiac event monitors encompass several device types used when symptoms are infrequent or when shorter diagnostic studies are nondiagnostic. External intermittent cardiac event monitors (external loop recorders, including versions with real‑time transmission such as eCardio) are used to document suspected arrhythmia, ST‑segment depression for ischemia, treatment response to antiarrhythmic drugs, arrhythmia recurrence after stopping therapy, post‑ablation results, and to evaluate syncope or lightheadedness when Holter/48‑hour telemetry is nondiagnostic or symptoms are infrequent (< daily). Mobile cardiovascular telemetry (MCT) provides real‑time outpatient telemetry for suspected arrhythmia when Holter/48‑hour telemetry is nondiagnostic or symptoms are infrequent, and for evaluation of suspected atrial fibrillation as a cause of cryptogenic stroke. Implantable loop recorders (ILR) (e.g., Reveal) are indicated when arrhythmia is suspected and either prolonged noninvasive monitoring (30‑day external recordings or MCT) fails to establish a diagnosis in higher‑risk patients, or symptoms are so infrequent (less than once per month) that noninvasive monitoring is unlikely to capture events; ILRs are also used for recurrent unexplained presyncope/syncope/seizure/palpitations when prior short‑term monitoring is nondiagnostic. Long‑term external ECG monitoring (continuous recording >48 hours, e.g., Zio Patch) is used to evaluate syncope/lightheadedness or to document arrhythmia when Holter/48‑hour telemetry is nondiagnostic or symptoms are infrequent.

Definitions

External intermittent cardiac event monitor — definition and examples

DefinitionExternal intermittent cardiac event monitors (external loop recorders), including devices with real-time data transmission and analysis (e.g., eCardio, eVolution), used to document suspected arrhythmia, ST segment depression, response to antiarrhythmic drug therapy, recurrence after drug discontinuation, post-ablation results, or to evaluate syncope/lightheadedness when Holter/48-hour telemetry is nondiagnostic or symptoms are infrequent (less frequently than daily).

Typical device examplesExternal loop recorders and variants with real-time transmission (examples in policy: eCardio, eVolution).

Primary clinical useDocument suspected arrhythmia when Holter/48-hour telemetry is nondiagnostic or symptoms occur infrequently; also for ST depression, drug therapy effect, recurrence after stopping therapy, and post-ablation monitoring.

Coverage noteConsidered covered for listed indications; external loop recorders are experimental/investigational for indications not listed in the policy.

Mobile cardiovascular telemetry (MCT) — definition and use

Policy Summary

Payermediviewcurative

PolicyCardiac Event Monitors Policy

Policy CodePolicy MM-PNP-009

Change TypeNo material change

Effective DateOct 1, 2023

Next Review Date

SourceLink

On This Page

Higher‑risk patients: 30‑day external loop recordings or MCT must fail to establish a definitive diagnosis.
Low‑risk patients: symptoms < once per month may justify implant because noninvasive monitoring is unlikely to capture events.

Step Therapy

Step therapy

No step therapy requirements are specified in the provided sections of the policy.

Documentation Required

Required clinical documentation

Providers must document clinical indications that match the specific device criteria, such as a nondiagnostic Holter monitor or 48‑hour telemetry, infrequent symptoms (e.g., less frequently than daily), suspicion that a cardiac arrhythmia is the cause of symptoms, or evaluation for suspected atrial fibrillation as a cause of cryptogenic stroke.

Document prior nondiagnostic Holter or 48‑hour telemetry when required by the device criteria.
Document symptom frequency (e.g., less frequently than daily or < once per month) and clinical suspicion for arrhythmia.
For implantable loop recorder requests, document prior 30‑day external loop recordings or MCT when applicable.

Documentation Required

Document control signature

Document control section must include printed name, date, and signature fields and tracks author, version and comments per the document control requirements.

Ensure printed name, date, and signature are present on documents.
Maintain document control entries for author, version, and comments as outlined.

Denial Risk

Denial risk for unmet criteria or recent prior study

Requests that do not meet the medical necessity criteria and repeat studies within 1 year of a previous study are at risk of denial or will be subject to medical necessity review.

Repeat studies within 1 year may be denied or require additional justification.

Note

Not applicable sections listed as N/A

Several reference and collaborating sections are listed as N/A (Regulatory Authority, Internal, External) in the policy; absence of these referenced materials may require follow‑up and could lead to administrative delays.

Verify any missing external or internal references if required by your organization.
Be prepared for potential follow‑up requests when referenced materials are not provided.

DefinitionMobile cardiovascular telemetry (MCT) — real-time mobile cardiac outpatient telemetry services (examples: CardioNet MCOT, Trove, Zio AT, SAVI, LifeStar ACT, HEARTLink II, etc.) used when a cardiac arrhythmia is suspected and Holter/48-hour telemetry is nondiagnostic or symptoms are infrequent.

Primary indicationsEvaluation of recurrent unexplained presyncope, syncope, palpitations, or dizziness when a cardiac arrhythmia is suspected AND Holter/48-hour telemetry is nondiagnostic or symptoms occur infrequently (less frequently than daily).

Stroke evaluation useEvaluation for suspected atrial fibrillation as a cause of cryptogenic stroke in members with a nondiagnostic Holter monitor or 48-hour telemetry.

Coverage noteMCT is considered experimental/investigational for indications other than those explicitly listed in the policy.

Implantable loop recorder — definition and indications

DefinitionImplantable loop recorder (e.g., Reveal Insertable Loop Recorder) — a subcutaneous implantable device to monitor cardiac rhythm when arrhythmia is suspected and prolonged noninvasive monitoring has failed or symptoms are too infrequent for external monitors to capture.

Indication — failed prolonged noninvasive monitoringCovered when, for persons with heart failure, prior MI, or significant ECG abnormalities, 30-day pre-symptom external loop recordings or MCT fail to establish a diagnosis.

Indication — very infrequent symptomsCovered when persons without those risk factors have symptoms occurring less frequently than once per month such that noninvasive ambulatory monitoring is unlikely to capture a diagnostic ECG.

Additional usesAlso covered for recurrent unexplained presyncope, syncope, seizures, palpitations, or dizziness when Holter/48-hour telemetry is nondiagnostic or symptoms are infrequent; EPS is not required prior to insertion.

Long-term external ECG monitoring (>48 hours) — definition and use

DefinitionLong-term external ECG monitoring — continuous external ECG recording and storage devices (e.g., Zio Patch) used for monitoring greater than 48 hours.

Primary indicationsTo evaluate syncope and lightheadedness when Holter/48-hour telemetry is nondiagnostic or symptoms occur infrequently (less frequently than daily).

Arrhythmia documentationTo document an arrhythmia in persons with a nondiagnostic Holter monitor or 48-hour telemetry or infrequent symptoms (less frequently than daily).

Minimum duration thresholdMonitoring duration specified as greater than 48 hours (policy notes use of devices for >48 hours).

Short-Term High Risk Criteria — definition

DefinitionShort-Term High Risk Criteria — phrase denoting clinical conditions that require prompt hospitalization or intensive evaluation; specific criteria are not detailed in the policy text provided.

Policy contextListed under ‘Short-Term High Risk Criteria Which Require Prompt Hospitalization or Intensive Evaluation’ heading in the policy reference section.

Documentation implicationAbsence of specific criteria in the provided sections suggests clinicians should use judgement and hospital-level evaluation when criteria apply.