Mental Health
The PTSD claim: service connection, stressors, and the statement that carries it
A PTSD claim rests on three things: a current diagnosis, something that happened in service, and a link between the two. Here is how each piece works, and why the statement you write can decide the whole claim.
Filing for PTSD, or for depression or anxiety tied to service, can feel like being asked to prove the hardest thing you have lived through. It is worth understanding the parts before you start, because the claim is more structured than it looks. It comes down to three pieces, and each one has its own rules.
You are not alone in this
If you are struggling right now, the Veterans Crisis Line is free and confidential. Dial 988, then press 1. You do not need to be enrolled in VA care to use it.
The three parts of the claim
For any mental health claim based on direct service connection, VA looks for three things:
1. A current diagnosis. A clinician has to diagnose the condition, and for PTSD that diagnosis follows the standard medical criteria VA uses. No diagnosis, no rating, even if the events were real.
2. An in-service stressor. Something happened during your service. In a PTSD claim this event is called the stressor. It is the thing your mind keeps carrying.
3. A link between the two. A medical opinion connects the current condition to the in-service event. This is the nexus, the bridge that says one caused the other.
Most mental health claims turn on the second piece: proving the stressor happened. That is where the rules get specific, and where a lot of veterans get stuck without needing to.
How VA verifies the stressor
The default rule is that VA tries to corroborate the stressor with the record: unit histories, personnel files, incident reports, and similar documents. But the law carves out several situations where the standard is relaxed, because the record does not always capture what a person went through. These rules live in 38 CFR §3.304(f).
The fear-of-hostile-activity rule
This is the one many post-9/11 veterans qualify for and do not know about. If your stressor is related to fear of hostile military or terrorist activity, and a VA psychologist or psychiatrist (or one VA has contracted with) confirms that the stressor is enough to support a PTSD diagnosis and that your symptoms are tied to it, then your own account can establish the event. No separate paper trail is required.
Two conditions still apply. The stressor has to be consistent with the places, types, and circumstances of your service. And there must be no clear and convincing evidence to the contrary. The regulation describes the kinds of events this covers, such as improvised explosive devices, incoming rocket or mortar fire, small arms fire, and similar threats, where your response involved fear, helplessness, or horror. For many people who served in a combat zone, this rule removes the biggest hurdle in the claim.
The combat rule
If you engaged in combat with the enemy and the stressor is related to that combat, VA will accept your own statement as proof the event happened, as long as it is consistent with the circumstances of your service and there is no strong evidence against it. Your DD-214, medals, and duty assignments often help establish combat status. The idea is simple. The record of a firefight is rarely a tidy memo.
Military sexual trauma and personal assault
Claims based on in-service personal assault, including military sexual trauma (MST), follow their own path, and it is a compassionate one by design. These events are often never reported at the time, so VA is required to look beyond the service record. It accepts a wide range of alternative evidence, and it looks for what are called markers: signs in the record that something changed.
Markers can include a sudden request for a transfer, a drop in performance ratings, new disciplinary problems, unexplained economic or social changes, a divorce, anxiety or depression that appears out of nowhere, or substance use that started around that time. Statements from family, friends, clergy, fellow service members, or counselors can all count. VA also has to tell you it can help develop this kind of evidence, and a VA clinician's opinion can weigh in on whether the markers point to the reported event. You do not have to have filed a report at the time for the claim to succeed.
One form now covers all of this
As of June 2024, VA folded the old separate assault form into a single VA Form 21-0781, now titled a statement in support of a claimed mental health disorder due to an in-service traumatic event. One form covers combat, non-combat, MST, and personal assault. You can use approximate dates and locations, and you are not required to name other people involved.
How mental health conditions are rated
PTSD, depression, anxiety, and most other mental health conditions are all rated on one shared scale, the General Rating Formula for Mental Disorders in 38 CFR §4.130. The rating is not about your diagnosis. It is about how much the condition impairs your work and your relationships. The levels are 0, 10, 30, 50, 70, and 100 percent.
| Rating | What it reflects, in plain terms |
|---|---|
| 0% | Diagnosed, but symptoms are not severe enough to interfere with work or need continuous medication. |
| 10% | Mild symptoms, or symptoms controlled by medication, with only occasional dips in function under stress. |
| 30% | Occasional trouble at work and at home, with symptoms like anxiety, suspiciousness, or sleep problems. |
| 50% | Reduced reliability and productivity, from things like panic attacks, memory issues, or impaired judgment. |
| 70% | Serious problems across most areas of work, school, family, and mood. |
| 100% | Total occupational and social impairment. |
The symptoms listed at each level are examples, not a checklist. What VA is measuring is the overall level of occupational and social impairment your symptoms cause. That is why the story of your daily life matters as much as any single symptom.
A change is proposed, not yet in effect
VA published a proposed rule in February 2022 (87 FR 8498) that would rebuild this formula around functional domains and set a 10 percent floor for any active diagnosis. As of 2026 it is not final, so the levels above are still the rules that apply. We will update this page if that changes.
Why the statement carries the claim
Because the rating measures impairment, the most valuable thing you can add is an honest picture of impact. Not a list of what happened to you, but what it costs you now. How many jobs the symptoms have ended. What family gatherings you avoid. How sleep, or the lack of it, shapes your day. Whether crowds, driving, or loud noise pull you out of the present.
Veterans often minimize this, out of pride or habit. That instinct works against you here. You are not admitting weakness. You are stating facts about how a service-connected condition affects your life, which is exactly what the rating turns on. Write plainly, be specific, and describe a normal week rather than your best day. A buddy statement from someone who sees you up close can add what you cannot see in yourself.
Where to verify this yourself
The stressor rules are set out at 38 CFR §3.304(f), the rating formula at 38 CFR §4.130, and VA explains the filing process on VA.gov. Because a mental health claim can hinge on which stressor rule fits your service, this is a strong one to walk through with a free accredited representative before you file.
Put your statement into words that hold up
The VA Claims Copilot can help you organize your stressor and describe the real impact on your work and relationships, in plain language, before you file. It is education, not representation. Or upload a decision letter and it will explain what your mental health rating actually means.
This is general education, not legal advice, and not from the VA. Your claim depends on your records, your evidence, and your exam. For advice on your specific situation, work with a free VA-accredited representative or a Veterans Service Organization. We are not the VA and are not affiliated with the VA.