How the VA Actually Decides Your Claim
This guide explains exactly how the VA evaluates your disability claim and assigns a rating. You will learn how raters apply the 38 CFR Part 4 rating schedule, how they review your medical records, C&P exam findings, and diagnostic codes, and how they turn your symptoms into a percentage. It covers functional impairment, the "whole person" method for combining conditions, and why two similar conditions can rate differently based on severity and documentation. You will see how the VA weighs evidence, resolves conflicts in the record, and decides service connection and compensation. Whether you are filing or trying to understand a past decision, this guide shows you how VA decisions get made and what most affects your outcome.
1 Real Does Not Mean Provable
You know your back hurts every morning. You know your nightmares wake you up at 3am. You know you can't concentrate at work. All of that is real. But the VA can only rate what is documented, measured, and connected to service on paper.
A rater sitting at a desk in a regional office has never met you. They have a file. That file is your entire claim. If the file doesn't contain a diagnosis, a nexus opinion, and documented severity, your condition doesn't exist in their world.
The veteran's statement is true. But without the medical documentation, it's not provable in the VA system. The fix is almost always a nexus letter, a doctor putting in writing what everyone already knows.
How to get a strong nexus letter →2 The Written Record Wins Every Time
What you tell the C&P examiner matters, but what's already in your medical records matters more. The VA gives more weight to consistent, documented evidence over time than to a single statement at an exam.
If you've had back pain for 10 years but only went to the doctor once, the rater sees a 10-year gap with one visit. They don't see 10 years of suffering, they see 10 years of no treatment. Fair? No. But that's how the system works.
Start building your paper trail today. Go to the VA for every condition you plan to claim. Document every visit. If you can't see a doctor, write a detailed personal statement and get buddy statements from people who witness your symptoms.
Work with a VSO representative on your personal statement →3 Functional Impact Matters More Than Diagnosis
Two veterans can have the exact same diagnosis, "lumbar strain", and get completely different ratings. Why? Because the VA rates how much the condition limits what you can do, not just what it's called.
The rater is asking: How does this affect your ability to work? To take care of yourself? To maintain relationships? The veteran who describes functional limitations gets rated higher than the veteran who just says "my back hurts."
The second veteran isn't in more pain, they just described what the pain prevents them from doing. That's what the rating schedule measures.
For musculoskeletal conditions, this is especially critical. The VA must consider DeLuca factors: pain on movement, flare-ups, fatigue, and functional loss beyond what the range-of-motion numbers show.
Painful Motion & DeLuca factors guide →4 Specificity Wins - Vague Descriptions Lose
The VA rates based on frequency and severity. Vague words like "often," "sometimes," or "a lot" don't help the rater assign a percentage. Specific numbers do.
Look at the rating criteria for your condition, they use specific thresholds. Migraines at 50% require "very frequent, completely prostrating and prolonged attacks productive of severe economic inadaptability." If you don't describe your migraines in those terms, the rater can't match your symptoms to that level.
5 The VA Does Not Assume Anything
You might think it's obvious that 20 years as an infantryman caused your knee problems. The VA does not think anything is obvious. Every single element must be explicitly stated and documented:
- Current diagnosis - a doctor must name the condition. "Knee pain" is a symptom, not a diagnosis. You need "degenerative joint disease of the left knee" or similar.
- In-service event - something must connect the condition to your service. Service treatment records, a documented injury, or military occupational exposure.
- Nexus - a medical professional must write that the condition is "at least as likely as not" related to service. The VA will not assume this connection even if it seems obvious.
6 Answer the Exact Reason You Were Denied
Every service-connection claim is one chain: current diagnosis → in-service event → medical nexus linking the two. A denial breaks at one specific link, and the decision tells you which one. Winning the next round means repairing that link, not burying it in paper.
- Denial said no nexus? Add a medical opinion that connects the condition to service.
- Denial said no current diagnosis? Get the condition formally diagnosed.
- Denial said no in-service event? Find the service record, or a buddy statement that places the event in service.
New evidence only helps if it is relevant to the reason you lost. That is the actual legal test for a Supplemental Claim: new and relevant evidence under 38 CFR § 3.156(a). Resending records the VA already had does not move the claim.
What Raters Do Not Count
A rater weighs evidence. They do not tally pages or reward effort. Several things veterans assume matter usually do not:
How much a nexus letter cost
Whether you used the "right" keywords
Sending the same records three times
Specificity: what happened, when, and the effect
Credibility: the account is believable and lines up
Relevance: evidence on the denied element
A clear theory: diagnosis → event → nexus
Think Like a Rater
A VA rater processes dozens of claims per week. They have your file, the rating schedule, and a checklist. Here's what they're doing:
- Does this veteran have a current diagnosis? They look for a medical record or C&P exam with a specific diagnosed condition, not symptoms, a diagnosis.
- Is there an in-service event? They check service treatment records, personnel records, and your statements for evidence something happened during service. (See the Records Request Guide if you need to pull copies of these records yourself.)
- Is there a nexus? They look for a medical opinion, from the C&P examiner or a private doctor, explicitly linking the current condition to the in-service event.
- How severe is it? They compare the documented symptoms to the rating schedule criteria for that diagnostic code. Range of motion in degrees. Frequency of episodes. Functional limitations.
- They pick the rating level that matches. If your symptoms fall between two levels, they rate at the lower one unless the evidence clearly supports the higher one.
How to Fix Your Claim
Now that you understand how the VA thinks, use these tools to close the gap between your reality and what's on paper:
The Bottom Line
The VA system is paper-based, criteria-driven, and assumes nothing. That's frustrating, but it's also predictable. Once you understand what the rater needs, you can give it to them. Every denied claim can be rebuilt with the right evidence, the right language, and the right documentation.
Your condition is real. Now make the file prove it.
This guide is for educational purposes only and is not legal or medical advice. Based on 38 CFR Part 4, VA adjudication procedures, and analysis of 1.9M+ BVA appeal decisions. Find a VSO representative for personalized guidance. All RateMyVSO tools are free.