Medical Records for a VA Nexus Letter

What Medical Records Should a Clinician Review for a Nexus Letter?

Claim Raven Team · September 21, 2026 · 4 min read

Build a nexus review packet around the actual medical question. Include diagnosis, service or primary-condition records, timeline, competing facts, and precise page references.

A clinician needs the records that answer the medical question, not every page you can find. Build a packet that shows the current diagnosis, the relevant service event or primary condition, the timeline between them, and any facts that could support or weaken the proposed connection.

The goal is a reviewable record, not a curated folder that hides uncertainty.

Start with the theory

For direct service connection, collect records about the in-service event, the current condition, and the history between them. For a secondary claim, add the history of the primary service-connected condition. For aggravation, include records that show the earlier baseline and the later worsening.

38 C.F.R. § 3.303 addresses direct service connection. 38 C.F.R. § 3.310 addresses secondary causation and aggravation.

For a secondary claim, check what a secondary-condition opinion must address before choosing the records.

The core packet

1. Current diagnosis and testing

Include the note, imaging, laboratory result, sleep study, pathology result, or other record that documents the current condition. If the diagnosis has changed, include the record that explains the change.

2. Service or primary-condition evidence

For a direct theory, this may be a service treatment record, personnel record, exposure record, line-of-duty document, or other dated source. For a secondary theory, include the rating decision or other reliable record identifying the primary service-connected condition, plus relevant treatment history.

3. Symptom and treatment timeline

Choose records that show onset, persistence, gaps, changes in severity, and major interventions. A timeline can include VA records, private records, and competent lay observations. Keep medical conclusions with qualified clinicians.

4. Prior opinions and examinations

Include favorable and unfavorable C&P opinions, DBQs, private opinions, and relevant decision-letter passages. A new clinician cannot fairly address a disputed premise if the prior opinion is missing from the packet.

5. Competing explanations

Include later injuries, family history, occupational exposures, medication changes, weight changes, substance use, or other facts when they are medically relevant. Their presence does not determine the answer. Their omission can make the review incomplete.

6. Research, if it helps the actual question

Provide the complete citation or article, not a screenshot of a headline. Add one sentence about the proposed relevance and one about the limitation. Association research does not establish individual causation by itself.

For a source-by-source search method, read how to find supporting evidence in your VA medical records.

Use an index the clinician can scan

Fictional index:

Date	Record	Page	What it may show
June 4, 2011	Service treatment note	3	Back pain after lifting event
August 18, 2017	Urgent care note	9	Later civilian fall and temporary increase in pain
February 2, 2024	Lumbar MRI	14	Current imaging findings
March 11, 2024	Primary care note	18	Current diagnosis and reported symptom history
April 8, 2024	Prior C&P opinion	23	Negative opinion based on no documented service complaint

The index describes what each source may show. It does not tell the clinician what conclusion to reach.

Records you should not quietly omit

Do not remove a record simply because it is unfavorable. Flag it and ask the clinician whether it changes the analysis. Also avoid sending duplicate exports, blank pages, unrelated sensitive records, and hundreds of pages with no index when a smaller relevant packet can answer the question.

VA lists service treatment records, current medical evidence, and other supporting documents among the evidence used for disability claims. Review the current VA evidence page.

Build the packet from sources you can trace

Raven Nexus can use uploaded or Claim Workspace records, show selected source passages with dates and page references where available, and assemble an evidence and research appendix for clinician review. A free account includes one starter assessment. Full drafting and additional record comparisons require Standard or Plus.

The clinician still decides whether the packet is sufficient and what medical opinion, if any, the evidence supports.

If you have not raised the request yet, read how to ask your doctor for a nexus letter before you send the packet.

Sources and scope

Reviewed September 20, 2026: VA evidence requirements; 38 C.F.R. § 3.159; 38 C.F.R. § 3.303; 38 C.F.R. § 3.310; Raven Nexus product page. Record relevance depends on the condition and medical question.

Check it yourself

Does this nexus letter say what it needs to say?

Paste the letter text. This checks for the elements VA and the Board look for in a medical opinion. It cannot judge whether the medicine is right; it can tell you what is missing before you pay for the letter or send it in. Nothing you paste leaves this page.

What this checks and why

Uses VA's probability standard. VA weighs an opinion by whether it says the condition is at least as likely as not related to service. Weaker phrasing is often read as speculation.
Avoids speculative language. Words like may, might, could, and possibly are the most common reason a private opinion is given little weight.
Names a current diagnosis. A nexus links a diagnosed condition to service. An opinion about symptoms without a diagnosis leaves the first element unmet.
Identifies the in-service event, injury, or exposure. The opinion has to tie the diagnosis to something that happened in service, or to an already service-connected condition for a secondary claim.
States which records were reviewed. The Board gives more weight to an opinion that shows the clinician read the service treatment records, the claims file, and the exam reports, and less to one that relies on the veteran's account alone.
Gives a medical rationale. A conclusion without reasoning is the second most common reason an opinion is discounted. VA wants to see why, not just what.
Shows the clinician's credentials. VA weighs an opinion partly by who wrote it. A letter with no credentials or specialty reads as anonymous.
Signed and dated. An unsigned or undated letter can be treated as a draft.
Addresses aggravation if the condition pre-existed service. For a condition that existed before service, VA asks whether service made it worse beyond its natural progression. A letter that ignores this leaves the question open.

Prepare the records your clinician needs

Raven Nexus organizes your records for a clinician's review, or checks a letter you already have. One assessment is free with an account. No clinician or signature is included.

Cases and regulations cited

Auto-extracted from the analysis. Verify against the source decision before relying on any citation.

38 CFR sections

38 CFR § 3.303
38 CFR § 3.310
38 CFR § 3.159