Hypertension, Agent Orange, and the PACT Act

Last Updated‏‏‎ ‎‏‏‎ ‎

Written by

Table of Contents

Passed into law in August of 2022, the Honoring our PACT Act piece of VA legislation added hypertension to its list of diagnoses presumed to be caused by exposure to the tactical herbicide known as Agent Orange (AO), making eligibility for disability benefits much easier.

While many other health conditions, like diabetes mellitus type II and prostate cancer, have long had presumptive condition status, this represents a major victory in a long history of working to see high blood pressure added to this Agent Orange list for Vietnam War vets, thus allowing them access to certain VA benefits.

Presumptive Hypertension Is a Landmark Decision From the Senate Committee on Veterans’ Affairs

The reason why this decision is so important is the scope of its impact. The CDC estimates that 47% of Americans have this disease and that “more than 670,000 deaths in the United States had hypertension as a primary or contributing cause.”

Its prevalence is particularly felt in the veteran community, where rates of high blood pressure for Vietnam veterans exposed to Agent Orange during military service are found to be higher than in the general population.

Scientific evidence lending credence to this connection has been touted by veterans and veterans groups for years and now the Senate Committee on Veterans’ Affairs has finally acknowledged Agent Orange’s contribution to this chronic disability.

What Is High Blood Pressure?

High blood pressure, also known as hypertension, is conceptually simple:  it’s the phenomenon of too much pressure being exerted against the walls of your arteries and veins.

To understand why this is harmful, imagine a hose filled with a pressure much higher than it was rated for. Eventually, the hose, its connectors, and the pump supplying the pressure will all experience damage.

Why hypertension is a silent killer.

The same concept applies in the human body, where arteries sustain inflammation as a precursor to blockages and heart attacks, the heart grows too large and becomes ineffective, and the kidneys suffer slow, quiet damage, among many other negative effects.  Providers refer to these downstream effects as “sequelae.” And because these changes often happen without obvious symptoms, hypertension has developed a reputation as a “silent killer.”

Why Was Agent Orange Used?

Between 1962 to 1971, Agent Orange was developed by the Army Chemical Corps and used as a “tactical herbicide” to make war operations easier and reduce opportunities for enemies to hide behind foliage. The VA, after many years, acknowledged that “veterans who were exposed to Agent Orange may have certain related cancers or other illnesses.”

The main issue with Agent Orange was its contamination with a chemical called 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), the most toxic dioxin currently known. Through the years, scientific evidence of Agent Orange’s ill effects mounted. Thus, the Department of Veterans Affairs (VA) established a list of presumptive conditions to support veterans suffering from those effects.

How Does Agent Orange Cause High Blood Pressure?

While the reason why the dioxin chemical in AO causes high blood pressure hasn’t been proven, it is theorized to be a result of the dioxin binding with a specific type of receptor (aryl hydrocarbon receptor) commonly found in blood vessels.

When this binding occurs, the arteries have difficulty responding to the body’s natural signals and instructions to decrease blood pressure. Over time, this could theoretically contribute to the onset of clinically-significant hypertension.

What the PACT Act Means for Veterans Suffering From Agent Orange Hypertension

For veterans who served in Vietnam and suffered Agent Orange exposure, the Department of Veterans Affairs acknowledges that you no longer need to prove that Agent Orange caused your high blood pressure. For these Vietnam War-era veterans, qualifying for Agent Orange exposure may mean you:

  • Sprayed Agent Orange.
  • Handled Agent Orange containers.
  • Have been involved in Agent Orange disposal.
  • Have been in areas where Agent Orange was sprayed (not just Vietnam itself).
qualify for agent orange exposure - hypertension article

As long as there is sufficient evidence that you qualify for a hypertension diagnosis, they presume that it was Agent Orange that caused it. However, for veterans looking to add high blood pressure to their list of service-connected disability benefits, showing “sufficient evidence” of a hypertension diagnosis may not be as straightforward as it seems. To understand why this is the case, read on.

Clinical Corner: A Disability Examiner’s Perspective on Agent Orange Hypertension

As a Nurse Practitioner and VA C&P Examiner, I’ve served many veterans exposed to Agent Orange who are seeking disability compensation for hypertension. These are a few things to keep in mind to help strengthen your case and prepare for your C&P Exam if you want to add hypertension to your disability claims:

1. Prepare for the VA’s unusual definition of hypertension.

The American College of Cardiology and the American Heart Association both define the earliest stage of hypertension as a systolic blood pressure (SBP, or the top number in a BP reading) greater than 130 mm Hg and a diastolic blood pressure (DBP, or the bottom number) as greater than 80 mm HG.

The CDC, another federal agency, accepts this definition. Your doctor (even one from the VA) accepts this definition (and treats accordingly). But the VA’s disability process only recognizes a diagnosis of hypertension when you have:

  • A SBP greater than or equal to 160 mm HG and a DBP greater than or equal to 90 mm HG.
  • A SBP greater than or equal to 160 mm HG with a DBP under 90 mm HG (aka isolated systolic hypertension).
agent orange hypertension - things to keep in mind

You can still get a formal VA hypertension diagnosis if you’re already on medication for high blood pressure, so this really only affects people who are trying to control their high blood pressure without medication.

If that’s you, it might help to have your doctor fill out a Disability Benefits Questionnaire diagnosing you with hypertension and documenting what you are currently doing to control it.

2. Examiners are looking for “sufficient medical evidence” to substantiate your hypertension.

Not only do your blood pressure readings have to meet the above definitions, but they must also be documented over a period of three different days and measured at least twice a day. 

This is likely not recorded in your medical records in this highly specific way, so the best thing to do is to take your blood pressure at home and keep a log so you can provide it during your exam.

If you don’t have your own blood pressure machine, you can get a reading taken at any local pharmacy. If you’ve been denied a VA hypertension diagnosis in the past on this basis, you can consider filing for a supplemental claim with the evidence outlined above.

Claims tip for taking your blood pressure for a Hypertension diagnosis.

3. Take your morning medications!

Sometimes veterans think that not taking their morning medications might result in a higher blood pressure during the exam and, thus, a better VA rating. This is not only untrue (they look throughout years of BP readings in your medical records, not just the “day of”), but it can be dangerous. In fact, it may have the opposite effect if your exam has to be canceled for you to be sent to the hospital for a hypertensive emergency!

Adding Hypertension for VA Healthcare Benefits After the PACT Act

Some veterans I’ve spoken with recall being told that Agent Orange was “safe enough to drink.” Not only is this wrong, but it couldn’t be further from the truth. We are finding out by the day all of the negative effects this chemical had on veterans exposed during military service. See our article on all of the currently recognized presumptive conditions to see if you may be suffering from another disease caused by Agent Orange.

If you’ve been denied when attempting to add hypertension as a service-connected condition for VA benefits in the past, now is a great time to consider re-filing with the changes introduced by the 2022 PACT Act legislation.

Now that it’s on the list of presumptive conditions after decades of effort, this will positively affect the many veterans and service members exposed during service who are now suffering hypertension’s ill effects.

Written by

More Articles

News and advice about the VA, disability ratings and benefits.


Supporting Veterans Nationwide

  • Thank you to the firm of Hill & Ponton!! Brian Hill and his staff were able to get my 100% disability with the VA for my exposure to herbicides in Thailand. I have been fighting for this for many years and kept getting denied, after consulting with Hill & Ponton I decided to let them help me and it was the best decision I could have made. I found their professionalism to be outstanding.

    – Chip P.

    North Carolina

  • They got my disability rating after I was denied twice. They knew exactly how to format and submit the claim. I was rated 50%, Hill & Ponton weren’t done, they found other medical that related to exposure and submitted additional claims. I could not have received a disability rating without Hill & Ponton. If you need help, choose Hill & Ponton.

    – Thomas D.


  • The service provided by Hill and Ponton was exemplary. The lawyers and staff took care of every aspect with respect and understanding of the clients needs. In my case, as a new widow, they patiently walked me through each step. They kept me informed of the progress. I cannot say enough about the service they provided. Thank you Brian and staff.

    – Judith K Zitzewitz


  • As a Vet you may have filed a disability claim, and if you want to win your claim you need to call Hill and Ponton. I didn’t know what to do about my condition or status until I made the call. At H&P they not only took my case, but made me feel like family. They changed my life and they will change your life too. It’s true! In my opinion you can’t do better and you won’t regret it!

    – Paul K



About Hill & Ponton

Learn about the VA disability law firm, champions for veterans since 1986.