Hypertension and Agent Orange: How the PACT Act Made High Blood Pressure Presumptive

If you're a Vietnam-era veteran who's been living with high blood pressure for years, there's a good chance the VA owes you an answer you didn't get the first time around. For decades, veterans tried to connect their hypertension to Agent Orange exposure and got shut down — the condition wasn't on the presumptive list, so claims required a nexus opinion most veterans couldn't get. That changed in August 2022.

The PACT Act added hypertension to the Agent Orange presumptive list. If you were exposed to herbicides during qualifying service and you've been diagnosed with high blood pressure, you no longer have to prove the link between the two. The VA is required to presume it. For a lot of veterans, that means a claim that was denied five, ten, or twenty years ago deserves another look.

Here's what you need to know.

What "presumptive" actually means

Before we get into hypertension specifically, let's clear up the terminology. A "presumptive condition" is one the VA automatically connects to your service, as long as you meet two tests: (1) you have the diagnosed condition, and (2) you served in a time and place where qualifying exposure is presumed.

For non-presumptive conditions, you have to prove three things: a current diagnosis, an in-service event or exposure, and a medical nexus opinion linking the two. That nexus opinion is usually the hardest piece — a lot of claims die on that step because the veteran can't get a doctor to write it.

Presumptive status removes the nexus requirement. You still need the diagnosis and the qualifying service, but the VA stops making you prove the causal link. That's a huge deal for conditions like hypertension, where the medical community has debated the Agent Orange connection for years.

How hypertension got on the Agent Orange list

The National Academies of Sciences, Engineering, and Medicine spent years reviewing the evidence linking Agent Orange exposure to hypertension. In 2018, they upgraded hypertension to the "sufficient evidence of association" category — their strongest category of linkage. But the VA didn't act on that recommendation administratively.

Congress did. Section 404 of the Honoring our PACT Act of 2022 (signed August 10, 2022) added hypertension — along with monoclonal gammopathy of undetermined significance (MGUS) — to the Agent Orange presumptive list in federal law (38 U.S.C. § 1116). This is distinct from the earlier NDAA for Fiscal Year 2021 (it became law on January 1, 2021, when Congress overrode a presidential veto), which added bladder cancer, hypothyroidism, and Parkinsonism to the same list. Different laws, different conditions, same framework.

Who qualifies: the service piece

To get the presumption, you need qualifying service in a location where Agent Orange or other tactical herbicides were used. The PACT Act significantly expanded this list. Under federal law (38 U.S.C. §§ 1116, 1116A, and 1116B) and VA's herbicide-exposure rules, qualifying service includes:

Vietnam — boots on the ground, inland waterways, or service aboard ships operating in Vietnam's territorial seas (Blue Water Navy, added in 2019)
Korean DMZ — service along the demilitarized zone during specified periods
Thailand — any U.S. or Royal Thai military base from January 9, 1962 through June 30, 1976 (expanded by the PACT Act — no more MOS or perimeter requirement)
Laos — specified periods during the Vietnam War era
Cambodia — Mimot and Krek, specified periods
Guam, American Samoa, and Johnston Atoll — specified periods
C-123 aircraft — Air Force and Air Force Reserve flight, maintenance, and medical crew who regularly worked on C-123s that were used to spray Agent Orange

That Thailand expansion is one of the most under-appreciated changes in the PACT Act. The old rule required veterans to have served along the perimeter of specific named Royal Thai Air Force bases — U-Tapao, Ubon, Nakhon Phanom, and a few others. The new rule drops the perimeter requirement entirely. If you served on any U.S. or Royal Thai military base in Thailand during the qualifying window, you qualify. If you were previously denied because your duties didn't put you on the perimeter, that denial deserves another look.

When the presumption actually kicks in

This part trips people up. On paper, the hypertension presumption didn't switch on for everyone at once. Section 404(d) of the PACT Act wrote in a two-tier schedule:

Enactment-date tier (August 10, 2022): The presumption applies from the date of enactment for claimants who are terminally ill, homeless, under extreme financial hardship, over age 85, can demonstrate other sufficient cause, or who are DIC claimants (survivors).

Default tier (October 1, 2026): Everyone else was scheduled to wait until October 1, 2026. In practice, nobody had to: in September 2022, VA's Secretary decided that every PACT Act presumption applies from the day the law was signed. So VA applies the hypertension presumption from August 10, 2022, whichever tier you'd fall into.

MGUS followed the same two-tier structure, but with a default phase-in of October 1, 2022. Hypertension's default date sat later because of how Congress scheduled it, but since VA dropped the phase-in, the schedule isn't a reason to wait. If you have a hypertension diagnosis and qualifying service, you can file now.

What counts as "hypertension" for VA purposes

For VA rating purposes, hypertension is defined at 38 CFR § 4.104 (Diagnostic Code 7101). You need a confirmed diagnosis, typically supported by blood pressure readings on two or more occasions, over at least three different days. The ratings run as follows:

10% — diastolic predominantly 100 or more, OR systolic predominantly 160 or more, OR a history of diastolic predominantly 100 or more requiring continuous medication for control
20% — diastolic predominantly 110 or more, OR systolic predominantly 200 or more
40% — diastolic predominantly 120 or more
60% — diastolic predominantly 130 or more

That "requiring continuous medication" piece in the 10% criteria is important. A lot of veterans whose blood pressure is now well-controlled on medication assume they don't qualify for a compensable rating. They often do — the question is what the blood pressure WAS before medication, and whether continuous medication is required to control it.

If you were denied before August 2022 — pay attention

This is the piece that matters most for a lot of veterans. If you filed a hypertension claim before August 10, 2022, and the VA denied it because hypertension wasn't presumptive, that denial was based on the law at the time. The law has now changed.

Under the PACT Act, VA has to find denied claims that might come out differently now and contact those veterans to invite a Supplemental Claim. It doesn't automatically re-decide a living veteran's old hypertension denial, though — you have to file the Supplemental Claim yourself. Don't wait for VA's letter to do it.

If you're in this situation, the right move is usually a Supplemental Claim under 38 CFR § 3.2501, based on the PACT Act's addition of hypertension. Because the law itself changed, VA doesn't make you come up with "new and relevant" evidence for this kind of Supplemental Claim. You do still need to file the Supplemental Claim form (VA Form 20-0995), and VA still has to see your hypertension diagnosis and proof of qualifying service, so make sure those records are in your file or send them in. Back pay under the new presumption can't start before August 10, 2022. Within that limit, a Supplemental Claim filed within a year of the decision keeps your original claim date (38 CFR § 3.2500(h)); one filed later can usually be paid from up to a year before VA receives it (38 CFR § 3.114), as long as you already had the diagnosis and qualifying service on August 10, 2022 and have had them ever since.

Augustus Miles has helped veterans with this exact situation. Our VA-accredited attorneys regularly see PACT Act cases like this — veterans whose original denial was legally correct at the time but is now reviewable under the new law.

Secondary conditions tied to hypertension

Hypertension doesn't exist in isolation. It drives a lot of other conditions, and once your hypertension is service-connected, you may have viable secondary claims under 38 CFR § 3.310. Common secondaries include:

Chronic kidney disease
Stroke / cerebrovascular accident
Hypertensive heart disease (including left ventricular hypertrophy)
Hypertensive retinopathy

Most secondary claims still need a medical nexus opinion linking the new condition to your service-connected hypertension (or showing aggravation beyond the natural progression). The big exception is ischemic heart disease: it's on VA's own Agent Orange presumptive list, so if you have it and the qualifying service, you file it as its own presumptive claim and don't need a nexus opinion at all. The nexus is the load-bearing piece — temporal correlation alone doesn't carry it.

For veterans whose hypertension has been undiagnosed or untreated for decades, these secondaries are often where the real compensation lives. A 10% hypertension rating is modest. A 10% hypertension rating plus a 60% kidney rating plus a 30% heart rating combine (VA's math isn't simple addition) to about 80% — a very different picture.

What a successful claim looks like

For a presumptive Agent Orange hypertension claim, your evidence package should include:

Proof of qualifying service — DD-214, unit records, deck logs, flight records, orders — whatever shows you were in a qualifying location during the qualifying period.
Medical records showing a hypertension diagnosis — ideally with blood pressure readings over time, documentation of medication, and any pre-medication readings showing the severity.
Current treatment records — to support the rating level under DC 7101.

If you have the service piece and the diagnosis piece, the presumption does the rest. No nexus letter needed. That's the whole point of presumptive status.

If VA has already decided your claim and the rating looks low, Augustus Miles can help you build the evidence for the rating you actually deserve — not just the minimum compensable rating. The difference between a 10% and a 40% hypertension rating is meaningful, and it depends on documenting the severity correctly.

Common mistakes to avoid

Assuming controlled blood pressure means no rating. The regulation specifically addresses continuous medication. If you need continuous medication to control it and your history shows diastolic readings predominantly 100 or more, that's compensable at 10%.

Filing without proof of qualifying service. The presumption applies only if VA can confirm you were in a qualifying location. Dig up your DD-214, personnel records, and anything else that places you in theater.

Missing the secondary conditions. If your hypertension has caused heart or kidney problems (hypertensive heart disease or kidney disease, for example), those are separate secondary claims under § 3.310 and often carry higher ratings. Ischemic heart disease is the exception: it's presumptive on its own, so it doesn't need the secondary-claim route.

Giving up after a denial. A denial based on pre-PACT-Act law is exactly the kind of claim that can come out differently under the new rules. If that denial is more than a year old, a Supplemental Claim is the lane still open to you; Higher-Level Reviews and Board appeals have a one-year deadline. If your decision is newer, the right lane depends on the specifics of your case.

If you've been denied, we can help

Augustus Miles works with veterans AFTER the VA has made a decision. If your hypertension claim was denied before the PACT Act, or if your current rating doesn't reflect the actual severity of your condition, our VA-accredited attorneys can help you figure out the right next step. The support team you'll talk to is made up of veterans — many of whom are former clients themselves.

You pay nothing upfront. We work on a contingency basis, which means we only get paid if your claim succeeds — a percentage of your past-due benefits, nothing more.

Frequently Asked Questions

Is hypertension really presumptive under Agent Orange now?

Yes. Section 404 of the PACT Act, signed August 10, 2022, added hypertension to the Agent Orange presumptive list in federal law (38 U.S.C. § 1116). If you have qualifying service in a location where Agent Orange was used and you have a diagnosed hypertension, VA presumes the connection — you don't need to prove nexus.

I was denied for hypertension years ago. Can I reopen the claim?

Yes, and this is one of the most common PACT Act scenarios. The right pathway is usually a Supplemental Claim under 38 CFR § 3.2501, based on the PACT Act's addition of hypertension — VA doesn't require "new and relevant" evidence for a claim based on the new presumption, though your diagnosis and proof of qualifying service still need to be in your file. Back pay can't start before August 10, 2022. Filed within a year of the decision, it keeps your original claim date (§ 3.2500(h)); filed later, VA can usually pay from up to a year before it receives the claim (§ 3.114).

I take medication and my blood pressure is normal now. Do I still qualify for a rating?

Likely yes. Under 38 CFR § 4.104, Diagnostic Code 7101, a 10% rating applies when a veteran has a history of diastolic pressure predominantly 100 or more and requires continuous medication for control. Well-controlled BP on medication doesn't disqualify you — the question is what your readings were and whether meds are required to keep them down.

What if I served in Thailand but not on the base perimeter?

You likely still qualify under the current rules. The PACT Act removed the old perimeter requirement for Thailand service. Under the current rule, any U.S. or Royal Thai military base in Thailand from January 9, 1962 through June 30, 1976 is qualifying service — no MOS or perimeter restriction. If you were denied under the old rule, that denial deserves another look.

How can Augustus Miles help with a PACT Act hypertension claim?

Augustus Miles works with veterans after VA has made a decision — denials, low ratings, or newly reviewable claims under the PACT Act. Our VA-accredited attorneys can help you file a Supplemental Claim, Higher-Level Review, or Board appeal, and our support team is made up of veterans, many of whom are former clients. You pay nothing upfront — we work on contingency.