Wearable_Auto_Defibrillator
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Clinical review criteria for automated external defibrillators (AEDs) for home use in pediatric patients and wearable cardioverter defibrillators (WCD/WAD) for adults, including coverage guidance, background, evidence conclusions, applicable HCPCS codes, and a revision reinstating prior authorization for non‑Medicare members effective 2026-08-01.
03/03/2026 MPC approved reinstating prior authorization for WADs for non‑Medicare members at high risk of sudden cardiac death, requiring prescribing practitioners to have relevant clinical experience; 60‑day notice required, effective 08/01/2026.
Policy notes that Kaiser will use Medicare LCD L33690 and Coverage Article A52458 for non‑Medicare members effective August 1, 2026.
Coverage Summary
This policy provides clinical review criteria for wearable cardioverter defibrillators (WCD/WAD) for adults and automated external defibrillators (AEDs) for home use in pediatric patients. Coverage stance is mixed: the policy documents clinical guidance and references Medicare LCD/Local Coverage Article for Medicare members while noting insufficient evidence for routine effectiveness of these devices.
Effective date: 2007-04-19. Last review: 2026-03-03. There is a material policy change: on 03/03/2026 the Medical Policy Committee approved reinstating prior authorization (PA) for WADs for non‑Medicare members identified as high risk of sudden cardiac death and requiring prescribing practitioners to have relevant clinical experience; this change requires 60 days’ notice and is effective 08/01/2026.
Medical-Necessity Criteria
Medicare Members / Non‑Medicare Members Guidance
Policy references Medicare LCD and Coverage Article for Medicare members; non‑Medicare members follow policy until 2026-08-01 and thereafter adopt Medicare LCD guidance with reinstated prior authorization for WADs for non‑Medicare members.
- Medicare members: For Medicare members: Kaiser uses applicable policy sources; Local Coverage Determination (L33690) and Local Coverage Article (A52458) apply
Medicare members follow CMS LCD/A
- Non‑Medicare members (until 2026-08-01): For non‑Medicare members: Existing Automatic External Defibrillators criteria effective until 2026-08-01; effective August 1, 2026 Kaiser will use coverage guidance from Medicare's LCD (L33690) and Coverage Article (A52458)
Change effective 2026-08-01
- Prior authorization reinstatement (non‑Medicare): 03/03/2026 MPC approved reinstating prior authorization for WADs for non‑Medicare members at high risk of sudden cardiac death, with prescribing practitioners required to have relevant clinical experience
60‑day notice; effective 2026-08-01
Medical Necessity / Evidence Conclusions
Coverage determinations informed by evidence summaries and technology assessment
- WCD/WAD evidence conclusion: Use of Wearable Automatic Defibrillators (WCD/WAD) does not meet Kaiser Permanente Medical Technology Assessment Criteria (insufficient evidence of efficacy and safety)
Evidence: observational studies, small sample sizes; WEARIT/BIROAD largest study
- Pediatric AED evidence conclusion: Use of AED in the home to prevent sudden death from ventricular fibrillation in pediatric patients does not meet Kaiser Permanente Medical Technology Assessment Criteria (insufficient evidence of mortality benefit)
Limited pediatric evidence; Heartstream FR2 detection accuracy study exists but no clinical outcomes
FDA/Device Contraindications (Background Operational Criteria)
FDA‑stated contraindications and practical limitations for WCD
- Implantable ICD: Do NOT use WCD if patient has or needs an implantable ICD
- Age: Do NOT use WCD in patients under 18 years of age
- Pregnancy/Breastfeeding: Do NOT use WCD in pregnant or breastfeeding patients
- Vision/Hearing/Medication interference: Do NOT use WCD in patients with vision or hearing problems or taking medications that would interfere with pushing response button on alarm module
- Willingness/Ability to wear: Do NOT use WCD in patients unwilling or unable to wear device continuously
- Childbearing not preventing pregnancy: Do NOT use WCD in patients of childbearing age not attempting to prevent pregnancy
- EMI exposure: Do NOT use WCD if patient is exposed to excessive electromagnetic interference
Provider Actions & Requirements
Prior authorization reinstated for WADs (non‑Medicare members)
Effective 2026-08-01, prior authorization is required for wearable automatic defibrillators for non‑Medicare members identified as high risk of sudden cardiac death; prescribing practitioners must have relevant clinical experience.
Follow Medicare LCD/Local Coverage Article for Medicare members
For Medicare members, coverage follows LCD L33690 and Article A52458; providers should reference those documents and supply required documentation per CMS guidance when submitting claims.
- Reference: Medicare Local Coverage Determination (L33690) and Local Coverage Article (A52458)
- Providers must supply required CMS documentation when submitting claims
Coding
| E0617 | External defibrillator with integrated electrocardiogram analysis |
| K0606 | Automatic external defibrillator, with integrated electrocardiogram analysis, garment type |
| K0607 | Replacement battery for automated external defibrillator, garment type only, each |
| K0608 | Replacement garment for use with automated external defibrillator, each |
| K0609 | Replacement electrodes for use with automated external defibrillator, garment type only, each |
Background, Evidence, and Definitions
Background materials describe sudden cardiac death (SCD) and the evolution of defibrillation devices from implantable cardioverter defibrillators (ICDs) to external options. Two device types are discussed: the automated external defibrillator with integrated ECG analysis that requires an operator to shock, and the wearable cardioverter defibrillator (WCD/WAD), a vestlike garment that continuously monitors rhythm and can automatically deliver shocks without bystander intervention. The LIFECOR WCD2000 is FDA‑cleared for 24‑hour use in patients at risk of sudden cardiac arrest when an implantable ICD is unwanted or impractical, and the FDA specifies contraindications (e.g., age <18 years, pregnancy, presence or need for an ICD, inability/unwillingness to wear continuously, sensory or medication limitations that would prevent use of the response buttons).
Evidence reviews summarized in the policy conclude insufficient evidence of efficacy and safety. The Kaiser Medical Technology Assessment found only small observational studies (the largest being WEARIT/BIROAD) and determined the published studies do not provide sufficient evidence to establish that wearable automatic defibrillators prevent sudden cardiac death. Similarly, for pediatric use the Heartstream FR2 (FDA‑approved with attenuated pads for children ≤8 years or ≤55 lbs) has accuracy data but no evidence showing reduced mortality in home or school settings; Kaiser concluded AED use in the home for pediatric patients does not meet Medical Technology Assessment criteria.
| Study | Key takeaway |
|---|---|
| WEARIT/BIROAD (Feldman et al.) | Largest observational study of wearable defibrillators; evidence insufficient to determine efficacy and safety |
| Cecchin et al. 2001 (Heartstream FR2 detection accuracy) | Study suggests accurate arrhythmia detection in children but did not evaluate delivered shock appropriateness or mortality outcomes |
Definitions: A Wearable Cardioverter Defibrillator / Wearable Automatic Defibrillator (WCD/WAD) is a vestlike external defibrillator with integrated electrocardiogram analysis designed to monitor rhythm and automatically deliver a shock if the patient becomes unconscious.
An Automated External Defibrillator (AED) is a portable device that analyzes heart rhythms and delivers shocks when indicated. The Heartstream FR2 is an AED model with pediatric‑attenuated pads specifically intended for children ≤8 years old or weighing ≤55 pounds.
Medicare Determinations
| Document Type / Number | Title |
|---|---|
| L33690 (LCD) | Automatic External Defibrillators |
| A52458 (Local Coverage Article) | Automatic External Defibrillators |
Revision History
MPC approved reinstating prior authorization for wearable automatic defibrillators (WADs) for non‑Medicare members identified as high risk of sudden cardiac death, requiring prescribing practitioners to have relevant clinical experience; 60‑day notice required, effective 08/01/2026.
Effective August 1, 2026 Kaiser Permanente will use Medicare's Local Coverage Determination (L33690) and Coverage Article (A52458) guidance for non‑Medicare members regarding Automatic External Defibrillators and wearable automatic defibrillators.
Clinical Review Criteria for Automatic External Defibrillators originally effective; background, device descriptions, FDA indications, evidence conclusions, and applicable HCPCS codes documented.
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