The Short Answer

The VA rates heart conditions primarily under Diagnostic Codes 7000–7020, covering arteriosclerotic heart disease, ischemic heart disease, hypertensive heart disease, and other cardiac disabilities. Ratings range from 10% to 100% depending on functional capacity (METs testing), heart failure status, and number of infarctions. Veterans with documented cardiac conditions during service, or who qualify for presumptive service connection (through Agent Orange, burn pits, or ionizing radiation exposure), can receive significant compensation. A 100% rating is achievable when the condition results in chronic congestive heart failure, or when functional testing shows a workload capacity of 3 METs or less.

VA Heart Disease Rating Schedule

Unlike many neurological or musculoskeletal conditions that have detailed criterion-based schedules, heart disease ratings are heavily dependent on functional assessment through METs (Metabolic Equivalents) exercise testing. Here is how the major cardiac diagnostic codes break down:

^{38 CFR § 4.104 — Schedule of Ratings: Cardiovascular System}

Understanding METs Testing

The cornerstone of VA heart disease ratings is the METs (Metabolic Equivalents) value obtained during graded exercise testing. One MET equals oxygen consumption at rest (~3.5 ml O₂/kg/min). The VA uses estimated METs capacity from exercise treadmill tests, nuclear stress tests, or dobutamine stress echoes:

• ≤3 METs — corresponds to minimal activity (dressing, slow walking across a room). Supports a 100% rating.
• 4–5 METs — moderate activity (light housework, climbing one flight of stairs). Supports a 60% rating.
• 6–7 METs — can walk at a moderate pace on flat ground but limited with hills or stairs. Supports a 30% rating.
• ≥8 METs — functional capacity is only mildly impaired. Supports a 10% rating.

Additional evidence that can support a 100% rating regardless of METs: documented episodes of acute signs and symptoms of congestive heart failure (e.g., orthopnea, paroxysmal nocturnal dyspnea, edema requiring medical intervention), or three or more episodes of acute congestive heart failure in the preceding year.

How to Establish Service Connection for Heart Disease

Direct Service Connection

To claim direct service connection, you need: (1) a current diagnosis of a heart condition, (2) an in-service event, injury, or exposure, and (3) a medical nexus connecting the two. Evidence of a cardiac event documented in service treatment records — chest pain episodes, hypertension readings, abnormal EKGs — provides the strongest foundation.

Presumptive Service Connection for Agent Orange Exposure

Ischemic heart disease is one of the VA's presumptive conditions for veterans exposed to Agent Orange and other herbicides during service. If you served in any of the following, your ischemic heart disease is presumed service-connected without needing to prove a direct nexus:

• Vietnam-era veterans who served boots-on-the-ground in Vietnam, or on its inland waterways, anytime during the covered period.
• Korean DMZ veterans who served in the demilitarized zone.
• C-123 Aircrew veterans who flew C-123 aircraft previously used for herbicide spraying.
• Active duty veterans at any US or Royal Thai base in Thailand, certain locations in Laos, Cambodia, Guam, American Samoa, or Johnston Island during the covered service windows.

This is one of the most impactful presumptions: because ischemic heart disease is so common in the general population, many veterans do not realize their heart condition may be service-connected. If you served in Vietnam and have been diagnosed with coronary artery disease, angina, or have had a heart attack, this presumption applies to you.

^{VA Agent Orange Exposure — Eligible Locations and Presumptive Conditions}

Burn Pit and Toxic Exposure (PACT Act)

The PACT Act expanded toxic exposure presumptions. While ischemic heart disease is not specifically listed as a PACT Act presumptive for Gulf War and post-9/11 veterans the way it is for Agent Orange, the toxic exposure screening is now mandatory for all enrolled veterans, and heart conditions can still be claimed through direct service connection or as a secondary condition to a service-connected respiratory or metabolic disability. Veterans with documented particulate matter exposure who develop premature cardiovascular disease have viable claims when supported by a medical opinion.

Secondary Service Connection

Heart disease frequently appears as a secondary condition. Common secondary pathways include:

• Heart disease secondary to diabetes mellitus. Diabetes is a major risk factor for coronary artery disease. Veterans with service-connected diabetes who develop ischemic heart disease can be granted secondary service connection.
• Hypertension secondary to kidney disease or PTSD. Both PTSD and kidney conditions are associated with elevated blood pressure, which over time leads to hypertensive heart disease.
• Heart disease secondary to sleep apnea. Obstructive sleep apnea causes chronic oxygen surges and cardiovascular strain. The medical literature increasingly recognizes OSA as an independent risk factor for ischemic heart disease and arrhythmias.
• Cardiomyopathy as a medication side effect. Certain medications used for service-connected conditions can be cardiotoxic over time.

What to Expect at the C&P Exam for Heart Conditions

The C&P exam for cardiovascular conditions is more involved than most disability exams. Understanding the process helps you prepare:

Exercise Treadmill Test / METs Assessment

This is the centerpiece of the cardiac C&P. You will likely be asked to perform a graded exercise test on a treadmill. The test measures your peak METs capacity by tracking your heart rate response and exercise tolerance. Critical preparation points:

• Do not skip your medications before the exam unless your cardiologist specifically tells you to — the VA wants to see your functional capacity on the regimen you actually take.
• If you cannot exercise due to joint pain, balance issues, or advanced cardiac disease, request a pharmacologic stress test (dobutamine or adenosine stress echo) instead.
• The test should be stopped when you reach your true exertion limit — not before. If you have chest pain, shortness of breath, or significant fatigue, the test should be terminated at that point.

Additional Components

• EKG / ECG — Rhythm, conduction abnormalities, evidence of prior infarction.
• Chest radiograph — Cardiomegaly, pulmonary congestion, vascular calcification.
• Echocardiography — Ejection fraction, wall motion abnormalities, valve function.
• Chart review — The examiner will review your entire cardiac workup history (stress tests, catheterizations, cardiac MRIs, surgical history).

Key Answers the Examiner Needs

The examiner is filling out a Disability Benefits Questionnaire (DBQ) that requires them to document specific data points. Be prepared to clearly state:

• Your ability to walk on flat ground, climb stairs, and perform household tasks without chest pain or severe shortness of breath.
• Whether you need to stop and rest during normal activities because of cardiac symptoms.
• If you take nitroglycerin or other cardiac medications to control symptoms.
• Whether you have had any hospitalizations, ER visits, or cardiac procedures (catheterization, stenting, bypass surgery, pacemaker/defibrillator placement) in the preceding months.
• If you experience orthopnea (difficulty breathing while lying flat) or paroxysmal nocturnal dyspnea — these are markers of congestive heart failure that support higher ratings.

Evidence That Strengthens a Heart Disease Claim

Cardiology Records

Your cardiologist's records are the backbone of your claim. Ensure they document:

• Precise diagnosis (e.g., "multi-vessel coronary artery disease" not just "heart disease").
• Ejection fraction if measured (an EF below 30% is a strong indicator of severe impairment).
• Angiographic results (which vessels are blocked, by how many percent).
• Stress test results with METs capacity listed specifically.
• Heart failure classification (NYHA Class I through IV).
• Surgical or interventional history (stent placement, CABG, valve replacement, ICD/pacemaker).

Functional History — Your Own Words Matter

Include a personal statement describing how heart disease affects your daily life. Veterans often understate their limitations. Be honest about:

• How far you can walk before needing to stop because of chest pain or shortness of breath.
• Whether you can carry groceries, mow the lawn, chase grandkids, or handle stairs.
• If your spouse or coworkers have noticed a change in your activity level since diagnosis.
• Episodes where you thought you were having a heart attack — what happened, did you go to the hospital, what was the outcome.

Buddy and Lay Statements

A statement from a spouse, family member, or friend who has observed your cardiac limitations adds important third-party corroboration. Particularly valuable if they can describe specific incidents — watching you go pale and clutching your chest on a walk, having to carry you inside after an incident, or your inability to do tasks you previously handled easily.

How to File a VA Heart Disease Claim

Step 1: Gather Your Evidence

Before filing, request complete cardiology records — including all stress tests with METs data, cardiac catheterization reports, echocardiograms, and surgical reports if applicable. If you served in Vietnam or another Agent Orange-qualifying location, obtain proof of service in those areas (DD-214 with deployment stamps, service records).

Step 2: Establish the Nexus

If this is a presumptive claim (Agent Orange + ischemic heart disease), the VA can grant service connection without a nexus opinion. For direct or secondary claims, obtain a nexus letter from a cardiologist stating that your condition is "at least as likely as not" related to your military service or to a service-connected condition.

Step 3: File the Claim

File online at VA.gov Form 21-526EZ, or work with a VSO to submit through eBenefits. Include all supporting records with your claim rather than waiting for the VA to request them — this significantly reduces processing time.

Step 4: Attend the C&P Exam

If you are granted a cardiac C&P exam, treat it as a critical event. Bring your medication list, a summary of your cardiac history including dates of surgeries or hospitalizations, and a written statement of your worst-day symptoms. If the examiner seems to be ending the test while you still have energy, mention that your worst exertion limits haven't been reached.

Step 5: Review and Appeal if Necessary

If you receive a rating lower than expected, three appeal options are available under the Appeals Modernization Act. Supplemental Claim (new evidence), Higher-Level Review (same evidence, new reviewer), or Board Appeal each offer viable paths — the best choice depends on what evidence you can still provide.

Frequently Asked Questions

Can the VA reduce my heart disease rating?

Yes, and heart disease ratings are among the most commonly reviewed for potential improvement. The VA may schedule routine reexaminations for cardiac conditions because functional capacity can change with treatment (bypass surgery, stenting, medication optimization). Ratings held for five years gain protections under 38 CFR § 3.344; ratings held for ten years can generally not be reduced. Ratings that have been in place for twenty years cannot be reduced below the minimum rating in effect at that time. Continued cardiac medication, ongoing METs limitation, or congestive heart failure documentation all support rating stability.

I had a stent placed but feel fine now. Can I still get a rating?

Yes. The fact that a coronary stent was placed means you had significant coronary artery disease. Even after successful revascularization, you retain the underlying cardiac condition. The VA rates based on your functional capacity and ongoing symptoms — a veteran with a stent who can now walk a mile without chest pain might receive 10%, while a veteran with stents who still has angina with minimal exertion could receive 60% or higher.

What if I cannot perform a treadmill test due to other disabilities?

The VA examiner should offer alternative testing — a dobutamine stress echocardiogram or a nuclear (adenosine/sestamibi) stress test — that does not require physical exertion. If you have significant orthopedic, pulmonary, or neurological conditions that prevent treadmill testing, the examiner must document that medical restriction and use an alternative means to assess your cardiac function.

How does congestive heart failure affect the rating?

Chronic congestive heart failure is one of the strongest pieces of evidence for a 100% rating because it demonstrates that the heart cannot meet the body's metabolic demands at rest or with minimal activity. Documentation of CHF episodes — particularly three or more acute episodes in a twelve-month period — supports the highest rating tier.

Is hypertension rated separately from heart disease?

Under Diagnostic Code 7101, hypertensive vascular disease is rated separately only when it manifests complications. Simple hypertension without evidence of heart, kidney, or vascular damage may receive a minimal rating. When hypertension has caused left ventricular hypertrophy, cardiac enlargement, or CHF, those manifestations are rated as heart disease under the appropriate diagnostic code — not as hypertension.

Can I claim arrhythmia as a separate condition?

Arrhythmias are rated under DC 7011 (supraventricular arrhythmias) or DC 7010 (implanted pacemaker) depending on type and treatment. A veteran can have multiple cardiac ratings if distinct conditions exist (e.g., ischemic heart disease under DC 7000 and a pacemaker under DC 7010), though pyramiding rules prevent rating the same symptoms twice.

Key Resources

• File VA Disability Claim — Form 21-526EZ
• 38 CFR § 4.104 — Schedule of Ratings, Cardiovascular System
• VA Agent Orange Exposure & Presumptive Conditions
• VBA Compensation Service
• VA Disability Compensation Rates

Key Takeaways

• Heart disease ratings range from 10% to 100% based on METs capacity during exercise testing, with ≤3 METs supporting a 100% rating.
• Ischemic heart disease is one of the VA's presumptive conditions for veterans exposed to Agent Orange — if you served in Vietnam or other qualifying locations, you may not need to prove a nexus.
• Chronic congestive heart failure and three or more acute CHF episodes per year strongly support a 100% rating.
• Heart disease can be claimed secondarily to diabetes, sleep apnea, kidney disease, and other service-connected conditions.
• The cardiac C&P exam centers on METs testing — ensure you perform at your true exertion limit, not your comfortable limit.
• Document all cardiac events: hospitalizations, ER visits, surgical procedures, and any episodes where you went to the hospital thinking you were having a heart attack.
• Buddy statements from family members who have observed your functional limitations add important corroboration.
• Ratings held for five or ten years gain increasing protections against reduction — do not skip routine reexaminations.