Listing 4.05 Recurrent Arrhythmias in 2026: How Uncontrolled Cardiac Syncope or Near Syncope Documented by Holter ECG Coincident With the Event Meets the Rule Despite a Pacemaker, ICD, or Antiarrhythmic Drug

Published July 7, 2026 by Anthony Albert, Benefits Research Director, Disability Exchange. Reading time about 22 minutes.

Most arrhythmia claims lose at the first medical review. Not because the claimant isn't sick. Because the medical file doesn't show the one thing SSA actually asks for in Listing 4.05: an ECG or Holter tracing that captured the arrhythmia at the same moment the person fainted or almost fainted. If that piece is missing, everything else in the file is background noise to the adjudicator. This article walks you through the exact rule, what "uncontrolled" and "recurrent" mean in the regulation, which cardiac events qualify, and how to build a file that actually meets the listing instead of just describing symptoms.

The Verbatim Rule in Listing 4.05

Here's the actual text from the SSA blue book, section 4.00 Cardiovascular Disorders, listing 4.05:

That's one sentence. And every phrase in that sentence is a trapdoor. Let's take it apart.

"Not related to reversible causes"

If your arrhythmia was triggered by low potassium, low magnesium, dehydration, thyroid storm, digitalis toxicity, or an antiarrhythmic drug at too high a serum level, SSA will not use 4.05. They'll evaluate the underlying issue and move on. That's why the file needs a cardiologist statement explicitly saying the arrhythmia is not from a reversible metabolic cause. Something like "recurrent monomorphic VT persists after correction of electrolytes and remains uncontrolled on amiodarone" locks that door.

"Uncontrolled" per 4.00A3f

Section 4.00A3f defines uncontrolled as meaning the impairment does not respond adequately to standard prescribed treatment. For arrhythmias, that includes medication, an implanted pacemaker, an ICD, or ablation. A person who had one AFib episode, got cardioverted, started apixaban and metoprolol, and hasn't had another episode is not uncontrolled. A person who still has syncopal episodes on maximum tolerated dose of sotalol plus a functioning ICD is uncontrolled.

"Recurrent" per 4.00A3c

Recurrent means the longitudinal clinical record shows that, within a consecutive 12 month period, the finding occurs at least three times, with intervening periods of improvement of sufficient duration that it is clear that separate events are involved. So you need three separate syncopal or near-syncopal episodes tied to the arrhythmia within a 12 month rolling window. Two episodes 11 months apart and one at month 14 doesn't count. Three episodes at months 2, 7, and 11 does count.

"Cardiac syncope or near syncope" per 4.00F3b

Syncope is a temporary loss of consciousness with loss of postural tone caused by inadequate cerebral blood flow. Near syncope is defined as a period of altered consciousness that includes light-headedness, dizziness, and a feeling that you're about to pass out, but without full loss of consciousness. SSA added near syncope in the current regulation specifically because many cardiologists document altered consciousness rather than full syncope, and the agency wanted to capture that. The 2010 amendment to 104.05 (the childhood equivalent) is the source of that language, and adult 4.05 followed.

"Despite prescribed treatment"

The syncope or near syncope must persist after the claimant has been on prescribed antiarrhythmic treatment. If your cardiologist has recommended catheter ablation and you refused, that hurts the claim unless there's a documented medical reason you can't undergo ablation. Same for pacemakers, ICDs, and specific medications. Section 4.00B3 addresses situations where no treatment is prescribed, which is rare but does apply for people with contraindications to every standard therapy.

"Documented by resting or ambulatory (Holter) electrocardiography or other appropriate medically acceptable testing, coincident with the occurrence of syncope or near syncope"

This is the single most important phrase in the listing. The ECG or Holter or event monitor tracing has to capture the arrhythmia at the exact same time the person had the syncopal or near-syncopal event. Not an ECG two days after a fainting spell showing AFib. Not a Holter monitor showing runs of SVT with no symptoms logged. The tracing and the symptom have to line up in time. Section 4.00F3c specifically requires this documented association.

Which Arrhythmias Actually Meet 4.05

The listing doesn't name specific rhythm disorders. It applies to any arrhythmia that meets the criteria. Here's what shows up most in approved 4.05 cases at the initial and reconsideration levels.

Ventricular tachycardia

Monomorphic sustained VT and polymorphic VT, including torsades de pointes when it's not from a reversible cause like drug-induced QT prolongation. Nonsustained VT alone rarely meets, unless the runs are causing syncope. Documented episodes on ICD interrogation counting as tracings that satisfy the coincident requirement.

Atrial fibrillation with rapid ventricular response and syncope

AFib alone doesn't meet 4.05. AFib with recurrent syncope from bradycardia-tachycardia syndrome, or from rapid conducted rates causing hemodynamic collapse, can meet. The average person with paroxysmal AFib on eliquis and metoprolol who has occasional palpitations doesn't. The person with tachy-brady on a pacemaker who still passes out three times a year despite optimal settings does.

Supraventricular tachycardia with syncope

SVT rates from 150 to 250 beats per minute can drop blood pressure enough to cause syncope. When ablation has failed or is contraindicated and the person still has syncopal episodes on medication, 4.05 can apply. AV nodal reentrant tachycardia and orthodromic AVRT are the most common substrates.

Complete heart block and sick sinus syndrome

Complete AV block without a pacemaker is a medical emergency, not a chronic disability case. But sick sinus syndrome after pacemaker implantation where the person still has syncopal episodes from paroxysmal atrial arrhythmias that the pacer can't fix does qualify.

Long QT syndrome and Brugada with recurrent syncope

Congenital channelopathies with documented episodes of torsades or ventricular arrhythmia on Holter or ICD tracings during syncopal events meet the listing when treatment (beta blockers, quinidine, ICD) hasn't stopped the syncope.

WPW after failed ablation

Wolff-Parkinson-White where the accessory pathway couldn't be safely ablated and the person still has AFib with rapid conduction and syncope. Rare but real.

How to Build a File That Actually Meets 4.05

Meeting the listing is a paperwork problem, not a medical problem. If the disease is severe enough to cause recurrent syncope despite treatment, the criteria are met. The question is whether the file proves it. Here's the anatomy of a winnable file.

Cardiologist longitudinal notes covering at least 12 months

Multiple office visits documenting persistent symptoms, medication adjustments, and specific syncopal or near-syncopal events by date. Bonus points when the notes name-check the listing: "patient continues to have recurrent syncope despite optimal medical therapy, meeting criteria consistent with SSA listing 4.05."

Three or more discrete syncopal or near-syncopal events within 12 months

Each event needs a date, a description of what happened (loss of consciousness or altered consciousness with duration), and ideally a witness statement or ER report. A logbook or written diary kept by the claimant helps. The events should be spread over the 12 month window, not clustered in one week.

ECG, Holter, or event monitor tracing coincident with at least one event

This is the linchpin. Options that satisfy the "coincident" requirement:

• 12-lead ECG at the ER during a syncopal event showing the arrhythmia
• Holter monitor tracing time-stamped to a syncopal event the patient logged
• Event monitor or loop recorder capture during symptoms
• Implantable loop recorder (Reveal LINQ, Confirm Rx) tracing during an event
• ICD interrogation showing VT or VF at the time of documented syncope
• Pacemaker interrogation showing failure to pace or inappropriate mode during syncope

Treatment history showing failure of standard therapy

Medication trials with doses, dates, response, and reason for discontinuation or continuation despite failure. If ablation was tried, the operative note and outcome. If a pacemaker or ICD is in place, the device model, implant date, and interrogation reports. If ablation or a device was recommended but declined, a documented medical reason.

Cardiologist statement of etiology

Explicit statement that the arrhythmia is not from a reversible cause. Something like: "Serial electrolytes normal, TSH normal, no digitalis or antiarrhythmic drug toxicity. The arrhythmia is a primary electrical disorder related to underlying structural heart disease."

Residual functional capacity assessment

Even if you meet the listing, a completed cardiac RFC form (like SSA-1204 or a doctor-written functional statement) helps at every level of review. It also matters if the claim ends up decided under a medical-vocational grid rule instead of the listing.

Worked Example 1: Maria, 58, SVT With Syncope, Springfield MA

Worked Example 2: Robert, 62, VT After Myocardial Infarction, Tampa FL

Common Reasons 4.05 Claims Get Denied

No coincident tracing

This is the number one denial reason. The file has an ECG showing AFib, and separately a note that the patient fainted three times, but nothing showing the arrhythmia at the moment of the syncopal event. The fix is usually a monitor. Push your cardiologist to order a 30-day event monitor or an implantable loop recorder. Wearable patch monitors like Zio XT and Bardy CAM record continuously for up to 14 days and time-stamp symptoms. If a monitor captures an event, that single tracing can win the claim.

Reversible cause not ruled out

The file has three episodes of torsades but no serum electrolytes or QT measurements around those episodes. DDS assumes reversible cause and denies. The fix is a cardiologist letter with the negative reversible-cause workup laid out.

Only two events within 12 months

Two events don't meet the "recurrent" definition. If you're close, wait to file until the third event is documented, or file and layer in the third event on reconsideration. Filing before you have the three-event threshold documented almost always results in a denial.

Palpitations documented but not syncope or near syncope

Chest fluttering and dizziness alone aren't enough. The record has to describe altered consciousness or loss of consciousness. If your cardiologist's notes just say "palpitations," ask for language that says "presyncopal episode with lightheadedness, tunnel vision, and near-loss of consciousness lasting 20 seconds."

Ablation refused with no medical reason

SSA views a refused curative procedure as a treatment gap. If ablation was declined, get a note explaining why (patient anatomy, coexisting bleeding disorder, patient anxiety with documented psychiatric evaluation, prior anesthesia complication). Refusing "just because" tanks the claim.

What If You Don't Meet 4.05 Exactly

The listing is strict. Most arrhythmia claims that get approved don't technically meet 4.05. They win under a residual functional capacity (RFC) analysis combined with the medical-vocational grid rules at step five of the sequential evaluation.

Under an RFC path, the question isn't "do you meet the listing" but "given your arrhythmia, what can you still do at work all day, five days a week?" Someone with AFib who has three episodes a month that each require an hour of rest to recover isn't going to hold down any competitive job. That's an unscheduled break problem. A vocational expert at hearing will confirm that no employer tolerates more than one unscheduled 15 minute break per day beyond regular breaks. Three hour-long recovery episodes a month equals more than that.

The RFC form should specifically say: unable to sustain 8 hour workday due to unpredictable syncopal or near-syncopal episodes; requires unscheduled breaks lasting 30 to 60 minutes 2 to 4 times per month; unable to work at unprotected heights, around dangerous machinery, or driving; limited ability to concentrate during and after episodes.

Combined with a grid rule (say, 202.06 for age 55+ with limited skill transfer to sedentary work), an RFC claim can win even when 4.05 doesn't apply. Read more about grid rules in our medical-vocational grid rules guide.

Timing and Onset Date Strategy

SSDI has a five-month waiting period from the established onset date (EOD) to the first payment. For arrhythmia claims, the EOD is usually the date of the first documented syncopal event within the 12 month window, provided the medical file supports uncontrolled recurrent episodes from that date forward.

The 12 month duration requirement means you either need 12 months of documented syncopal episodes already, or a medical opinion that the arrhythmia is expected to remain uncontrolled for at least 12 months from the EOD. Cardiologist language like "chronic refractory ventricular arrhythmia with expected duration exceeding 12 months given failure of catheter ablation and structural heart disease" satisfies duration.

Retroactive SSDI back pay caps at 12 months before your application date. So if you had documented syncope starting January 2024 and filed in December 2025, the earliest back pay date is December 2024 (12 months before filing). The five-month waiting period then subtracts, so first payment is for May 2025. For a deeper look at protective filing and retroactive dates, see our protective filing guide.

Medicare Timing After Approval

Once SSDI is approved with an EOD, Medicare eligibility starts 29 months after the EOD (24 month waiting period plus the 5 month SSDI waiting period). For a claimant with an ICD, that's important because ICD generator replacements and lead extractions are expensive, and Medicare Part B covers cardiology follow-up and device interrogations. Bridge coverage (spouse's plan, COBRA, Marketplace with subsidies) matters during that 29 month gap.

Frequently Asked Questions

Related Reading

• Listing 4.02 Chronic Heart Failure Deep Dive
• Listing 4.04 Ischemic Heart Disease
• Listing 4.12 Peripheral Arterial Disease
• ALJ Hearing Prep 2026
• On the Record OTR Fully Favorable Decisions