Winning a VA Rating for CAD (Coronary Artery Disease)

Many veterans with coronary artery disease (CAD) undergo treatments and major lifestyle changes yet still receive a low rating. It doesn’t have to be this way. The VA rating for coronary artery disease runs from 10% to 100%, and the good news is that a veteran with CAD often does not have to prove it was caused by service at all: coronary artery disease is a form of ischemic heart disease on the Agent Orange presumptive list, so veterans with qualifying herbicide exposure service can gain service connection without a nexus opinion.

• For VA purposes, coronary artery disease and ischemic heart disease are legally the same condition, which is why CAD qualifies for the Agent Orange presumption.
• Coronary artery disease claims can be won as secondary to service-connected diabetes, PTSD, hypertension, or sleep apnea.
• Since the VA’s November 14, 2021 cardiovascular revision, current CAD ratings are based on METs (which includes symptoms, treatment, and functional assessments) rather than ejection fraction.
• Ejection fraction (the percentage of blood pumped out of the heart with each heartbeat) is used only when the VA rates a claim from an earlier period before the November 14, 2021, cardiovascular revision.
• Coronary artery disease is rated from 10% to 100% on the METs scale; when lower-level activities trigger heart symptoms, the ratings are higher.

Is Coronary Artery Disease a Presumptive VA Disability?

Coronary artery disease is considered a form of ischemic heart disease, a group of conditions caused by reduced blood flow to the heart muscle. Ischemic heart disease was added to the VA’s Agent Orange presumptive list under 38 C.F.R. § 3.309(e) on August 31, 2010, making it easier for many veterans to obtain service connection.

A presumptive condition is a disability that VA automatically links to military service, provided certain service requirements are met. For veterans with qualifying herbicide exposure, the VA presumes both the exposure and the connection between CAD and military service. As a result, most veterans do not need to obtain a medical nexus opinion, which is a doctor’s statement linking the disability to service.

Veterans who do not qualify for the Agent Orange presumption may still be eligible for benefits via direct service connection, which requires evidence showing the condition began or was worsened because of an in-service event, illness, injury, or exposure.

Another option is a secondary service connection under 38 C.F.R. § 3.310. This applies when a service-connected disability (such as high blood pressure, diabetes, or sleep apnea) causes or worsens CAD and medical evidence supports the connection.

Can the PACT Act Help Win Coronary Artery Disease Claims?

The PACT Act expanded the locations and time periods where the VA presumes veterans were exposed to herbicides. It allows more veterans to qualify for presumptive service connection, dramatically lowering the burden of proof even for many veterans who never served on the ground in Vietnam.

Qualifying herbicide-exposure service now reaches well beyond Vietnam (January 9, 1962, to May 7, 1975). Presumed herbicide exposure under 38 C.F.R. § 3.307(a)(6) and the current VA Agent Orange exposure locations includes:

• Thailand: Any U.S. or Royal Thai military base between January 9, 1962, and June 30, 1976.
• Laos: Service between December 1, 1965, and September 30, 1969.
• Cambodia: Service at Mimot or Krek in Kampong Cham Province between April 16, 1969, and April 30, 1969.
• Guam or American Samoa: Service on land or in the territorial waters between January 9, 1962, and July 31, 1980.
• Johnston Atoll: Service on the island or aboard a ship that called there between January 1, 1972, and September 30, 1977.
• Korean DMZ: Service between September 1, 1967, and August 31, 1971.
• C-123 aircraft crews: Service involving exposure to herbicide residue on contaminated aircraft.

How Does the VA Rate Coronary Artery Disease?

The VA rates coronary artery disease under Diagnostic Code 7005 using the General Rating Formula for Diseases of the Heart in 38 C.F.R. § 4.104 and based on METs (short for Metabolic Equivalents), which measure how much energy the body uses during activity: one MET equals the energy cost of standing quietly at rest / oxygen uptake of 3.5 mL/kg/min.

Ratings for CAD are 10%, 30%, 60%, or 100% depending on the METs level at which heart failure symptoms appear: 100% at 3.0 METs or less, 60% at 3.1 to 5.0, 30% at 5.1 to 7.0, and 10% at 7.1 to 10.0 or continuous medication is required treatment.

A stress test on a treadmill or stationary bike helps determine how well the heart works and how much exertion a veteran can tolerate before symptoms (such as shortness of breath, fatigue, chest pain, arrhythmia and palpitations, dizziness, or fainting) begin. The higher the METs level, the better the heart functions and the lower the VA rating. That’s why a workload of 7.1 to 10.0 METs results in only a 10% evaluation.

Coronary Artery Disease Ratings and Compensation

Since VA’s November 14, 2021 cardiovascular revision, current CAD ratings are based primarily on METs, with limited alternatives such as continuous medication for a 10% rating or cardiac hypertrophy or dilatation for a 30% rating, rather than ejection fraction.

VA Criteria (DC 7005)	Rating	Compensation (veteran alone)
Workload of 3.0 METs or less results in heart failure symptoms (breathlessness, fatigue, angina, dizziness, arrhythmia, palpitations, syncope)	100%	$3,938.58/mo
Workload of 3.1-5.0 METs results in heart failure symptoms	60%	$1,435.02/mo
Workload of 5.1-7.0 METs results in heart failure symptoms; or cardiac hypertrophy or dilatation confirmed by echocardiogram (or equivalent)	30%	$552.47/mo
Workload of 7.1-10.0 METs results in heart failure symptoms; or continuous medication required for control	10%	$180.42/mo

If a veteran cannot safely complete an exercise stress test due to a medical condition, the VA will likely use the examiner’s estimated METs level from the C&P exam to evaluate the disability, called an Interview-based METs test. The examiner should explain why testing cannot be performed and provide an estimate based on the veteran’s symptoms and activity limitations.

Is Coronary Artery Disease the Same as Ischemic Heart Disease?

Although the names are different, coronary artery disease (CAD) and ischemic heart disease (IHD) generally refer to the same disease. Coronary artery disease describes what is happening inside the artery. In contrast, ischemic heart disease describes what happens to the heart when those arteries can no longer deliver enough oxygen-rich blood.

Coronary artery disease develops when fatty deposits, called plaque, build up inside the coronary arteries that supply blood to the heart muscle. Over time, these narrowed or blocked arteries reduce blood flow. When the heart does not receive enough oxygen to meet its needs, the condition is known as ischemia, which means reduced blood supply.

Because coronary artery disease is the most common cause of ischemia in the heart, doctors often use the terms coronary artery disease and ischemic heart disease interchangeably. The VA considers the two conditions interchangeable for rating purposes.

CAD is included in the VA’s definition of ischemic heart disease for purposes of the Agent Orange presumption under 38 C.F.R. § 3.309(e).

The VA considers many conditions and treatment procedures as forms of presumptive ischemic heart disease associated with Agent Orange exposure, including:

• Coronary artery disease (DC 7005): Includes coronary artery spasms, which temporarily reduce blood flow to the heart.
• Atherosclerotic cardiovascular disease (DC 7005): Occurs when plaque builds up inside the arteries, causing them to harden and narrow.
• Heart attacks, also called myocardial infarctions or MIs (DC 7006): Includes acute (sudden and severe), subacute (less severe), and previous heart attacks.
• Angina (DC 7005): Includes stable angina (predictable chest pain), unstable angina (sudden chest pain), and Prinzmetal’s angina (chest pain caused by artery spasms). All are forms of chest pain resulting from reduced blood flow to the heart.
• Coronary artery bypass graft (CABG) surgery (DC 7017): A surgical procedure that creates a new route for blood to flow around blocked coronary arteries.

The Agent Orange presumption for ischemic heart disease does not include every heart or blood vessel condition. The VA specifically excludes:

• Peripheral vascular disease, which affects blood flow outside the heart, such as in the arms or legs
• Stroke and other diseases involving blood vessels outside the heart

Veterans diagnosed with these conditions may still qualify for VA disability benefits through direct or secondary service connection if the evidence supports their claim.

Once CAD is recognized as a service connected condition, other heart disorders, including congestive heart failure (DC 7002), arrhythmias (DC 7010 or 7011), and AV block (DC 7015), can be rated as secondary disabilities.

How Do You Prove Service Connection for Coronary Artery Disease?

Veterans can qualify for VA disability benefits for CAD through multiple pathways. The best option depends on several factors, including the veteran’s military service, medical history, and documentation in official records (evidence).

1. Presumptive service connection means that veterans with qualifying herbicide exposure do not have to prove that military service caused their coronary artery disease. The VA presumes both the exposure and the connection to service. The condition may develop at any time after military service and still qualify.
2. Direct service connection requires a current diagnosis of coronary artery disease, evidence of an in-service illness, injury, event, or toxic exposure, and a medical nexus (a medical provider’s opinion stating that CAD is “at least as likely as not” linked to military service. Even if CAD is diagnosed many years after discharge, benefits may still be granted, provided the evidence supports the direct service connection.
3. Secondary service connection allows veterans to obtain VA benefits if another service-connected disability caused or aggravated (worsened) their CAD. Medical evidence must show that the service-connected condition caused or aggravated heart disease.
4. Special rule for amputations: under 38 C.F.R. § 3.310(c), the VA presumes cardiovascular disease is the result of a service-connected amputation when a veteran has an above-the-knee amputation of one leg or above-the-ankle amputations of both legs.

What Conditions Are Connected to Coronary Artery Disease?

Many veterans develop CAD because of another service-connected disability (such as PTSD, diabetes, or hypertension), making them eligible for secondary service connection. To qualify, the medical evidence must show that it is “at least as likely as not” (at least 50% probable) that the service connected condition caused or worsened the coronary artery disease.

CAD Secondary to Diabetes Mellitus (Type 2 Diabetes)

Type 2 diabetes (DC 7913) damages blood vessels and promotes the buildup of plaque inside the arteries, a process called atherosclerosis. As plaque accumulates, blood flow to the heart becomes restricted, increasing the risk of CAD and heart attacks.

A diabetes and coronary heart disease study shows cardiovascular disease occurs about twice as often in men with diabetes and about three times as often in women with diabetes. For many veterans, diabetes is already presumed service-connected, so the medical nexus only needs to link diabetes to coronary artery disease.

CAD Secondary to Post-Traumatic Stress Disorder (PTSD)

A large study of more than 863,000 active-duty service members found that PTSD was associated with a significantly high risk of atherosclerotic cardiovascular disease. A 2022 study, published by the American Journal of Psychiatry, supports a strong causal genetic link between PTSD and heart disease.

PTSD (DC 9411) keeps the body in a constant “fight-or-flight” state, increasing stress hormone levels (such as cortisol), inflammation, and blood clotting activity. Together, these changes can damage blood vessels and accelerate plaque buildup in the coronary arteries. Find out more about heart disease secondary to PTSD.

CAD Secondary to Hypertension

Hypertension (DC 7101) forces the heart to work harder and places continuous pressure on artery walls. A 2022 study on hypertension and CAD found that over time, the blood vessel damage caused by hypertension promotes plaque buildup in the arteries, increasing the risk of CAD.

Chronic (long-term) hypertension can lead to left ventricular hypertrophy (enlargement and thickening of the heart muscle), making the heart less efficient at pumping blood while promoting atherosclerosis. Research published in the New England Journal of Medicine has shown that even slightly elevated blood pressure readings can increase the risk of future cardiovascular problems.

CAD Secondary to Obstructive Sleep Apnea (OSA)

OSA (DC 6847) is a condition in which breathing repeatedly stops and starts during sleep due to airway obstruction. These breathing interruptions lower oxygen levels, forcing the heart to work harder throughout the night. Over time, repeated decreases in oxygen cause inflammation, damage to blood vessels, and plaque buildup in the coronary arteries.

A 2023 study on obstructive sleep apnea found that people with OSA have nearly 6 times higher coronary artery calcium scores (a measure of plaque buildup closely linked to CAD). Find out more about heart disease secondary to sleep apnea.

What Evidence Do You Need to Win a Coronary Artery Disease Claim?

The strongest CAD claims are supported by well-documented medical evidence. The VA looks for proof that the condition exists, evidence showing how severe it is, and, in some cases, a medical opinion connecting the disease to military service. The more complete the evidence, the stronger the claim.

1. A current diagnosis: A diagnosis of CAD performed by a qualified medical provider, preferably a heart specialist (cardiologist), and confirmed by imaging tests (such as cardiac catheterization, a coronary calcium CT scan, or other heart imaging).
2. A formal exercise stress test (Bruce protocol treadmill or bicycle): A treadmill or stationary bicycle stress test provides a measured METs score, which helps the VA determine the proper disability rating. “Measured” refers to the amount of oxygen your body uses during physical activity compared to when you are completely at rest. This type of evaluation is more accurate and carries more weight than an examiner’s estimate.
3. Complete C&P examination: The Compensation and Pension (C&P) exam should clearly document symptoms, medications, medical history, and how CAD limits daily activities and the ability to work.
4. Additional heart testing: Cardiopulmonary exercise testing (CPET) or nuclear stress imaging may be needed when an exercise stress test is contraindicated because of other health conditions. CPET and nuclear stress imaging help determine how much of the veteran’s reduced exercise capacity is caused by the heart rather than another health condition.
5. Service records and Nexus opinion: For non-presumptive claims, a qualified medical provider’s opinion stating that the coronary artery disease is “at least as likely as not” related to military service or another service-connected disability establishes service-connection.
6. An independent medical opinion (IMO): A detailed opinion from a cardiologist who reviewed the veteran’s medical records can significantly strengthen a CAD claim, often carrying more weight than a brief or unsupported C&P opinion.
7. Lay statements: Written statements from the veteran, family members, friends, or coworkers can describe symptoms such as chest pain, shortness of breath, fatigue, or reduced endurance for physical activity. These observations help show how coronary artery disease affects everyday life and may support both service connection and result in a higher disability rating.

How Can You Get TDIU (VA Unemployability) for Coronary Artery Disease?

Many veterans with CAD struggle to keep full-time employment because of angina (chest pain caused by reduced blood flow to the heart), shortness of breath, dizziness, weakness, or severe fatigue. Routine work activities often become difficult with minimal physical exertion due to these symptoms.

When medical records, employment history, and other evidence show that CAD prevents substantially gainful employment (means steady work that provides income above the federal poverty level), Total Disability based on Individual Unemployability may be granted.

With TDIU, a veteran can be rated less than 100% and still receive monthly payments at the 100% level when service-connected conditions prevent employment.

1. Schedular TDIU: Veterans meet the VA’s minimum rating requirements by having one service-connected disability rated at 60% or higher, or a combined disability rating of at least 70% with one condition rated 40% or more. A single 60% rating for coronary artery disease meets this requirement.
2. Extraschedular TDIU: Veterans who do not meet the VA’s minimum percentage requirements may still qualify if their service-connected disabilities prevent them from working. “Extraschedular” means the VA can make an exception to its normal rating rules when the evidence shows a veteran cannot maintain substantially gainful employment because of service-connected conditions. These claims are reviewed individually under 38 C.F.R. § 4.16(b).

Why Are Coronary Artery Disease Claims Denied?

Most coronary artery disease claims are denied or assigned a rating that is too low because important medical evidence is missing from the claim, or the heart condition was not fully evaluated. In many cases, these problems can be corrected by submitting additional medical records, updated testing results, or a more detailed medical opinion.

Reason for the Low Rating or Denial	Potential Solution
The VA estimated the veteran’s METs level during the examination instead of performing a cardiac stress test. METs measure how much physical activity the heart can undertake before symptoms begin.	Request a standardized treadmill exercise stress test (the “Bruce protocol”), or, if exercise is contraindicated due to adverse effects on cardiac function, ask for a medication-administered stress test. If the examiner estimated METs without explaining why exercise testing could not be performed, challenge the examination as inadequate.
The VA deemed the diagnosis was not current or was documented in outdated medical records.	Submit recent cardiology treatment records, current test results, and a list of heart medications. Continuous medication to control coronary artery disease may support at least a 10% disability rating.
The VA denied the claim because there was no medical nexus linking coronary artery disease to military service. A nexus is a medical provider’s opinion explaining that a condition is “at least as likely as not” related to service or another service-connected disability.	Obtain an independent medical opinion (IMO) that clearly explains the connection. Depending on the facts of the case, CAD may also qualify for secondary service connection because of another service-connected condition (such as diabetes or chronic kidney disease)
The METs score reflected limitations due to one or more other medical conditions rather than solely due to heart disease. For example, arthritis, lung disease, or another health problem can reduce exercise capacity and make coronary artery disease appear less severe.	VA examination forms instruct examiners to separate heart-related limitations from other medical conditions whenever possible. Request cardiopulmonary exercise testing (CPET) or nuclear stress testing to determine how much of the limitation is actually caused by the heart.
The temporary 100% rating ended after a heart attack, coronary bypass surgery, or pacemaker implantation, and the VA reduced the evaluation without considering updated medical evidence.	Submit a new cardiac stress test and recent treatment records before the temporary rating expires so that the VA can evaluate the current severity of the heart condition rather than assigning a lower rating based on limited evidence.

Legal Assistance for Coronary Artery Disease Claims

Many coronary artery disease claims are underrated because key evidence is missing, or the full severity of the condition was not well documented. Hill & Ponton can help veterans gather the evidence needed to support a higher evaluation, including stress test results, treatment records, and nexus opinions that move a rating from 10% toward 60% or higher. Contact us for a free, no obligation review of your case.

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