Currentsierra health and lifePolicy 2026T0609Q

Catheter Ablation for Atrial Fibrillation

Defines coverage rationale, coding, and documentation expectations for catheter ablation to treat atrial fibrillation for UnitedHealthcare Commercial and Individual Exchange members aged 18 and over.

Policy Summary

Payersierra health and life

PolicyCatheter Ablation for Atrial Fibrillation

Policy CodePolicy 2026T0609Q

Change TypeRevisions to InterQual reference and documentation timeframes (material) — clarifications to age and arrhythmia scope

Effective DateJan 1, 2026

Next Review Date

Key ActionSubmit required medical records documenting diagnosis (ECG, Holter, or rhythm strip), recent physical exam within 3 months, electrolytes within 6 months, TSH within 12 months, assessment for myocardial ischemia within 12 months, and LVEF by echo or MUGA.

SourceLink

POLICY UPDATE CHANGES

Replaced reference to the InterQual CP procedure criteria title to 'InterQual ® CP: Procedures, Electrophysiology (EP) Testing +/- Catheter Ablation, Cardiac'.

Updated required medical records documentation elements, including more specific diagnostics and timeframes (e.g., electrolytes within 6 months; TSH within 12 months; assessment for myocardial ischemia within 12 months; LVEF by echo or MUGA).

Clarified that policy does not apply to members aged < 18 years or to arrhythmias other than atrial fibrillation.

Revised CPT 93656 description in the Applicable Codes section.

4Procedure codes listed

>=18Age eligibility

InterQualExternal criteria

Policy Summary

Payersierra health and life

PolicyCatheter Ablation for Atrial Fibrillation

Policy CodePolicy 2026T0609Q

Change TypeRevisions to InterQual reference and documentation timeframes (material) — clarifications to age and arrhythmia scope

Effective DateJan 1, 2026

Next Review Date

SourceLink

On This Page

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Coverage Criteria

Medical necessity (InterQual-referenced)

Covered when InterQual EP Testing +/- Catheter Ablation clinical criteria are met.

InterQual-based medical necessity: Member meets the InterQual CP: Procedures, Electrophysiology (EP) Testing +/- Catheter Ablation, Cardiac criteria for catheter ablation of atrial fibrillationsee InterQual criteria

Policy indicates this procedure is proven and medically necessary in certain circumstances per InterQual

This policy excludes members aged <18 years and does not apply to arrhythmias other than atrial fibrillation. Providers should not use this policy as justification for coverage of procedures performed on pediatric members or for non‑AF rhythm disorders.

Listing a procedure or diagnosis code in this policy is for reference only and does not imply that the service described is a covered benefit. Coverage is determined by the member’s specific benefit plan document and applicable laws, and the inclusion of a code does not guarantee reimbursement or claim payment.

Applicable Codes and Documentation Timeframes

Applicable CPT CodesCPT

93653	Comprehensive electrophysiologic evaluation with insertion and repositioning of multiple electrode catheters, induction or attempted induction of an arrhythmia with right atrial pacing and recording and catheter ablation of arrhythmogenic focus, including intracardiac electrophysiologic 3- dimensional mapping, right ventricular pacing and recording, left atrial pacing and recording from coronary sinus or left atrium, and His bundle recording, when performed; with treatment of supraventricular tachycardia by ablation of fast or slow atrioventricular pathway, accessory atrioventricular connection, cavo-tricuspid isthmus or other single atrial focus or source of atrial re- entry.
93655	Intracardiac catheter ablation of a discrete mechanism of arrhythmia which is distinct from the primary ablated mechanism, including repeat diagnostic maneuvers, to treat a spontaneous or induced arrhythmia (List separately in addition to code for primary procedure).
93656	Comprehensive electrophysiologic evaluation with transseptal catheterizations, insertion and repositioning of multiple electrode catheters, induction or attempted induction of an arrhythmia including left or right atrial pacing/recording, and intracardiac catheter ablation of atrial fibrillation by pulmonary vein isolation, including intracardiac electrophysiologic 3-dimensional mapping, intracardiac echocardiography with imaging supervision and interpretation, right ventricular pacing/recording, and His bundle recording, when performed.
93657	Additional linear or focal intracardiac catheter ablation of the left or right atrium for treatment of atrial fibrillation remaining after completion of pulmonary vein isolation (List separately in addition to code for primary procedure)

Recent testing and documentation timeframes - required elements

ElectrolytesSerum electrolytes documented within the last 6 months

Thyroid function (TSH)TSH documented within the last 12 months

Assessment for myocardial ischemiaDocumentation of assessment for myocardial ischemia (e.g., stress test) within the last 12 months

Recent physical examDocumentation of a recent physical exam within the last 3 months

Left ventricular functionLeft ventricular ejection fraction reported by echocardiography or MUGA (as available)

Provider Actions and Requirements

Prior Authorization

Prior Authorization Required

Prior authorization and medical necessity determination are required for catheter ablation for atrial fibrillation. Requests will be reviewed against InterQual® CP: Procedures, Electrophysiology (EP) Testing +/- Catheter Ablation, Cardiac and member-specific benefit plan documents. Approval is not guaranteed by submission of records; final coverage depends on meeting clinical criteria and member benefits.

Prior authorization required before scheduling
Clinical review will reference InterQual® criteria
Coverage determined by both clinical criteria and member benefits

Documentation Required

Required Documentation Elements

Provide the following documentation with the prior authorization request and in the medical record. Incomplete documentation may delay review or result in denial.

Diagnosis documented by ECG, Holter, or rhythm strip specifying atrial fibrillation type (paroxysmal, persistent) and whether symptomatic

Background

Atrial fibrillation is an arrhythmia that may be symptomatic and can present as paroxysmal or persistent. Catheter ablation, including pulmonary vein isolation and additional left or right atrial lesion sets, is an established treatment option when clinical criteria for medical necessity are met. This policy references the InterQual® CP: Procedures, Electrophysiology (EP) Testing +/- Catheter Ablation, Cardiac criteria to define when catheter ablation for atrial fibrillation is considered medically necessary.

Definitions

CPT 93656 - procedure description

CPT 93656 - short descriptionComprehensive electrophysiologic evaluation with transseptal catheterizations, insertion and repositioning of multiple electrode catheters, induction or attempted induction of an arrhythmia including left or right atrial pacing/recording, and intracardiac catheter ablation of atrial fibrillation by pulmonary vein isolation

Includes mapping and imagingIncludes intracardiac electrophysiologic 3-dimensional mapping and intracardiac echocardiography with imaging supervision and interpretation when performed

Additional monitoringMay include right ventricular pacing/recording and His bundle recording when performed