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Nexus Letters for Arrhythmia and AFib
Licensed Physician, MD | Patriot Path Medical Team
Specializing in VA cardiovascular evaluations and independent medical opinions • Last updated: June 2026
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A heart that skips, races, or flutters gets your attention fast. For many veterans it shows up as atrial fibrillation (AFib). That is the most common arrhythmia the VA sees. For others it is a different supraventricular arrhythmia that sends the heart into a sprint for no good reason. Sometimes you feel it. Sometimes a monitor catches it before you do.
With arrhythmia, the rating turns on the details. What does the ECG show? How many times a year did you need treatment? What was that treatment? It also rides along with sleep apnea and PTSD, two conditions many veterans already have service-connected. That opens a secondary path many people miss.
Our doctors connect your arrhythmia to your service, or to a service-connected cause, in the language the VA expects. One flat fee of $1,500. The first consult is free.
How VA Rates Atrial Fibrillation and Supraventricular Arrhythmia
The VA rates AFib and most fast supraventricular rhythms under 38 C.F.R. § 4.104, Diagnostic Code 7010 (Supraventricular tachycardia). The rule itself lists atrial fibrillation as an example. The rating turns on two things. Is the rhythm confirmed by ECG? And how often did you need a treatment intervention in a year? The rule defines a 'treatment intervention' tightly. It is not just any doctor visit. Here is the rule, word for word, then what each level looks like.
"7010 Supraventricular tachycardia: Confirmed by ECG, with five or more treatment interventions per year ... 30. Confirmed by ECG, with one to four treatment interventions per year; or, confirmed by ECG with either continuous use of oral medications to control or use of vagal maneuvers to control ... 10. Note (1): Examples of supraventricular tachycardia include, but are not limited to: Atrial fibrillation, atrial flutter, sinus tachycardia, sinoatrial nodal reentrant tachycardia, atrioventricular nodal reentrant tachycardia, atrioventricular reentrant tachycardia, atrial tachycardia, junctional tachycardia, and multifocal atrial tachycardia. Note (2): For the purposes of this diagnostic code, a treatment intervention occurs whenever a symptomatic patient requires intravenous pharmacologic adjustment, cardioversion, and/or ablation for symptom relief."
| Rating | What it generally takes | Monthly pay (approx) |
|---|---|---|
| 30% | Arrhythmia confirmed by ECG, with five or more treatment interventions per year. A 'treatment intervention' means a symptomatic episode that required IV medication adjustment, cardioversion, and/or ablation. | ~$552/mo |
| 10% | Arrhythmia confirmed by ECG, with one to four treatment interventions per year; OR confirmed by ECG with continuous oral medication to control it; OR confirmed by ECG with vagal maneuvers to control it.Most Common | ~$180/mo |
DC 7010 tops out at 30%. There is no 60% or 100% row for supraventricular tachycardia itself. A higher rating usually means a different or added heart condition is in play. Examples: heart failure rated on the General Rating Formula. A pacemaker under DC 7018. A ventricular arrhythmia under DC 7011. The whole rating hangs on two phrases: 'confirmed by ECG' and 'treatment intervention.' Confirmed by ECG means the arrhythmia must be caught on a tracing. An electrocardiogram, a Holter monitor, an event monitor, or a similar tracing. A reported feeling is not enough. Treatment intervention is defined narrowly in Note (2). It counts only when a symptomatic episode required IV medication adjustment, cardioversion (shocking the rhythm back), and/or ablation (a catheter procedure to fix it). A routine medication refill or a check-up does not count. So picture a veteran on daily oral medication that keeps the rhythm quiet. No IV adjustments, no cardioversions, no ablations. That veteran usually rates 10% on the 'continuous use of oral medications to control' path. That holds even though the AFib is real and ongoing. Keep your ECG/Holter tracings, your cardioversion and ablation records, and your medication list together. They are what set the rating. One more rule from 4.104: for Diagnostic Codes 7009, 7010, 7011, and 7015, a single evaluation will be assigned under the diagnostic code that reflects the predominant disability picture. If more than one rhythm code could apply, the VA picks the one that best fits. It does not stack them.
Pay figures are approximate 2026 rates (effective December 1, 2025) for a single veteran with no dependents. Check VA.gov for current amounts.
A note on ventricular arrhythmias (DC 7011)
The rating above covers supraventricular arrhythmias (AFib, atrial flutter, SVT). Those rhythms start in the upper chambers. Ventricular arrhythmias start in the lower chambers, and they are more dangerous. So the VA rates them differently and higher, under 38 C.F.R. § 4.104, Diagnostic Code 7011 (Ventricular arrhythmias (sustained)). A 100% rating applies, verbatim, for the situations below.
- 1
Hospital-treated sustained ventricular arrhythmia
A 100% rating applies for an indefinite period from the date of inpatient hospital admission for initial medical therapy for a sustained ventricular arrhythmia, or from admission for ventricular aneurysmectomy.
- 2
An AICD in place
Having an automatic implantable cardioverter-defibrillator (AICD) in place rates 100%.
- 3
Mandatory re-exam and residuals
After that, the VA does a mandatory exam six months post-discharge. It then rates any residuals under the General Rating Formula for Diseases of the Heart (the MET-based scale).
"For an indefinite period from the date of inpatient hospital admission for initial medical therapy for a sustained ventricular arrhythmia; or, for an indefinite period from the date of inpatient hospital admission for ventricular aneurysmectomy; or, with an automatic implantable cardioverter-defibrillator (AICD) in place ... 100." - 38 C.F.R. § 4.104, Diagnostic Code 7011. If you have an AICD or a documented sustained ventricular arrhythmia, this is a different and much higher path than DC 7010. Flag it for your reviewer.
Estimate your likely arrhythmia rating (DC 7010)
This estimator is for supraventricular arrhythmias like AFib. It is a rough guide, not a rating. The VA decides your claim on your records and its own exam. Have an AICD (implantable defibrillator) or a hospital-treated sustained ventricular arrhythmia? That is rated under DC 7011 at 100%, not under this estimator.
Making a VA Disability Claim for Arrhythmia
A VA disability claim for arrhythmia needs three things to line up:
A current diagnosis, confirmed by ECG
AFib, atrial flutter, or another supraventricular arrhythmia. It must be documented on a tracing (ECG, Holter, or event monitor).
A service connection
Either the arrhythmia began in service, or it ties to an in-service cause, or it ties to another service-connected condition. This is where sleep apnea and PTSD come in.
A medical nexus
A qualified medical opinion. It says your arrhythmia is 'at least as likely as not' connected to your service, or to a service-connected cause.
For arrhythmia, the secondary path is the one many veterans miss. Two service-connected conditions come up again and again as drivers. The first is obstructive sleep apnea. It is strongly linked to atrial fibrillation. The link runs through repeated overnight oxygen drops and pressure changes in the chest. The second is PTSD. Its chronic stress response is linked to arrhythmias, including AFib. Is your sleep apnea or PTSD already service-connected? Then AFib secondary to it is often the most direct route to service connection. Long-standing hypertension and other service-connected heart conditions can play a part as well. The 'at least as likely as not' standard (a 50% or better chance) comes from the benefit-of-the-doubt rule in 38 U.S.C. § 5107(b). It is carried out in 38 C.F.R. § 3.102.
How to Connect Arrhythmia to Service
There are a few ways to tie arrhythmia to your service. For many veterans the secondary path is the strongest. AFib so often rides along with service-connected sleep apnea or PTSD.
Direct connection
The arrhythmia began in or was first documented during service.
- A tracing or treatment in service. An in-service ECG showing AFib or SVT. Treatment for palpitations or a racing heart. A documented cardioversion.
- Onset soon after service. An arrhythmia that showed up in the years right after service can still support a direct claim. It takes the right medical opinion.
Secondary connection (the path many veterans miss)
Another service-connected condition caused or worsened your arrhythmia (38 C.F.R. § 3.310). Two secondary links come up again and again.
- Sleep apnea. Obstructive sleep apnea is strongly linked to atrial fibrillation. The repeated oxygen drops and surges at night put stress on the heart. They are a well-documented driver of AFib. If your sleep apnea is service-connected, AFib secondary to it is worth a serious look.
- PTSD and other mental-health conditions. PTSD comes with chronic stress and a stress-hormone response in the body. Both are linked to arrhythmias, including AFib. AFib secondary to service-connected PTSD is a recognized theory and worth a close look.
- Hypertension and heart disease. Long-standing high blood pressure can help cause arrhythmia. So can other service-connected heart conditions.
Aggravation
You had an arrhythmia before service. Service made it permanently worse (beyond its natural course).
- Worse during service. On active duty, your episodes came more often or grew more severe, or your treatment had to be stepped up. That change went beyond normal change over time.
Secondary Conditions
Arrhythmia rarely stands alone. It often flows from another service-connected condition, and it can lead to others. Each link the VA can rate is rated on its own and added to your combined rating. So they are worth documenting.
Arrhythmia may be secondary to
- Sleep apnea. Obstructive sleep apnea is a leading driver of atrial fibrillation. It works through repeated overnight oxygen drops and pressure changes in the chest. A strong secondary path where sleep apnea is service-connected.
- PTSD. PTSD brings chronic stress and a stress-hormone response. Both are linked to arrhythmias, including AFib.
- Hypertension. Long-standing high blood pressure strains the heart and can help cause arrhythmia.
Conditions that may be secondary to arrhythmia
- Stroke / thromboembolism. AFib raises the risk of clots and stroke. That is why many AFib patients are on blood thinners. Stroke residuals are rated under their own codes.
- Heart failure. Over time, a poorly controlled fast rhythm can weaken the heart. Heart failure is rated on the General Rating Formula for Diseases of the Heart.
- Anxiety and depression. Living with a heart-rhythm condition can help cause a mental-health condition. That condition is rated on its own and can be claimable.
What to Gather - Evidence Checklist
Gather these before you file or ask for a letter. For arrhythmia, the ECG tracing and your treatment history do the heavy lifting.
Frequently Asked Questions
How does the VA rate atrial fibrillation?
Under 38 C.F.R. 4.104, Diagnostic Code 7010 (Supraventricular tachycardia), which lists atrial fibrillation as an example. The arrhythmia must be confirmed by ECG. It rates 30% with five or more 'treatment interventions' in a year. It rates 10% with one to four interventions a year, or with continuous oral medication or vagal maneuvers to control it. DC 7010 tops out at 30%.
What counts as a 'treatment intervention' for the AFib rating?
The rule defines it narrowly. Under Note (2) of DC 7010, a treatment intervention happens only when a symptomatic episode requires IV medication adjustment, cardioversion, and/or ablation. A routine medication refill or a regular check-up does not count. That definition is the difference between the 10% and 30% levels.
Why is my AFib only rated 10% when I take medication every day?
Because daily oral medication that controls the rhythm falls under the 10% criterion ('continuous use of oral medications to control'). To reach 30% you usually need five or more defined treatment interventions in a single year. That means IV adjustments, cardioversions, or ablations. The medication keeping you stable is good for your health. But on this rating scale it sits at 10%.
Can my AFib be connected to my sleep apnea or PTSD?
Yes, it can be, on a secondary basis under 38 C.F.R. 3.310. Obstructive sleep apnea is a well-documented driver of atrial fibrillation. The chronic stress response tied to PTSD is linked to arrhythmias. Is your sleep apnea or PTSD already service-connected? Then AFib secondary to it is often the most direct path. That is the kind of link a nexus letter is built to show.
How are ventricular arrhythmias rated differently?
Ventricular arrhythmias start in the heart's lower chambers. They are rated under DC 7011, not DC 7010. A sustained ventricular arrhythmia treated in the hospital rates 100%. So does having an automatic implantable cardioverter-defibrillator (AICD) in place. Then comes a mandatory re-exam six months later. Residuals are rated on the General Rating Formula. If you have an AICD, this is a separate, higher path.
Do I need a nexus letter for arrhythmia?
Usually, yes, unless the arrhythmia was clearly documented and treated in service. The link to service, or to a service-connected condition like sleep apnea or PTSD, is where most arrhythmia claims turn. A nexus letter gives the 'at least as likely as not' medical opinion the VA needs. That opinion is what we write.
A heart that won't keep time is still a service connection worth making.
Let our doctors write your arrhythmia nexus letter. It will meet the VA's evidence standards and support the benefits you earned.
Sources & Regulatory References
- 38 CFR 4.104, Schedule of ratings, cardiovascular system, including DC 7010 and DC 7011 (eCFR) https://www.ecfr.gov/current/title-38/section-4.104
- 38 CFR 3.310, Secondary service connection (eCFR) https://www.ecfr.gov/current/title-38/section-3.310
- 38 CFR 3.102, Reasonable doubt (eCFR) https://www.ecfr.gov/current/title-38/section-3.102
- VA disability compensation (VA.gov) https://www.va.gov/disability/
- 2026 VA disability compensation rates (VA.gov) https://www.va.gov/disability/compensation-rates/veteran-rates/
- About VA disability ratings (VA.gov) https://www.va.gov/disability/about-disability-ratings/