Veterans Benefits Toolkit: Evidence, Nexus Letters, and Appeal Lanes

Summary. A working kit: records requests, inventory and ratings worksheets, the evidence templates that decide claims, examination preparation, decision analysis and lane selection, the appeal filings, a TDIU package, and the authorities.

SECTION A — RECORDS

A-1. Claims file (C-file) request

Re: Request for a complete copy of my claims file — [Name], VA File No. [], SSN [last four], DOB []

Pursuant to the Privacy Act and 38 C.F.R. § 1.577, I request a complete copy of my claims file, including: all rating decisions and code sheets; all VA examination reports; all service treatment and personnel records in the file; all correspondence; all medical evidence; and all internal worksheets and deferred rating documents.

Please provide it in electronic format. If any portion is withheld, identify the record and the exemption claimed.

[Signature · date · address · telephone]

A-2. Records request checklist

□ SERVICE TREATMENT RECORDS  — National Personnel Records Center
                                or the VA portal
□ PERSONNEL FILE (OMPF)      — duty assignments, LOCATIONS, DATES
                                (proves exposure for presumptives)
□ CLAIMS FILE (C-file)       — what adjudicators actually read
□ PRIVATE TREATMENT RECORDS  — request directly; faster, and you
                                control completeness
□ SSA DISABILITY FILE        — functional evidence for TDIU
□ UNIT RECORDS / AFTER-ACTION REPORTS / MORNING REPORTS
                             — for stressor corroboration
□ DD-214 and any prior DD-215
□ Prior C&P examination reports

SECTION B — WORKSHEETS

B-1. Condition inventory

Claim everything, including at 0%. A 0% grant establishes service connection — the foundation for later increases and every secondary claim.

B-2. Secondary condition map — the most underclaimed part of the system

B-3. Combined ratings calculator — why ratings do not add

Start at 100% EFFICIENCY. Apply each rating to what REMAINS.

  Ratings, highest first:  50%, 30%, 20%

  Step 1: 50% of 100 = 50   → combined 50, efficiency 50
  Step 2: 30% of 50  = 15   → combined 65, efficiency 35
  Step 3: 20% of 35  = 7    → combined 72, efficiency 28

  ROUND to the nearest 10  →  70% COMBINED

Three ratings "totaling 100" produce 70.

YOUR CALCULATION
  Ratings, highest first: ____ ____ ____ ____ ____
  Step 1: ____ of 100 = ____  → combined ____, remaining ____
  Step 2: ____ of ____ = ____ → combined ____, remaining ____
  Step 3: ____ of ____ = ____ → combined ____, remaining ____
  Rounded: ______%

⚠ ADD the BILATERAL FACTOR where there are compensable disabilities
  of both arms, both legs, or paired skeletal muscles.
⚠ The marginal value of an additional low rating falls sharply as
  the combined figure rises — which is why TDIU and SMC are usually
  worth more than one more 10%.

SECTION C — THE EVIDENCE THAT DECIDES CLAIMS

C-1. Nexus letter — direct service connection

[Provider letterhead] · [Date]

Re: [Veteran], DOB [__] — Medical opinion regarding [condition]

Qualifications. I am a [board-certified specialty] licensed in [state]. I have treated [Veteran] since [date] [or: I examined [Veteran] on [date] for the purpose of this opinion].

Records reviewed. I reviewed: the service treatment records dated [range], including the entries of [dates]; the DD-214; VA treatment records dated [range]; the VA examination report dated [date]; and imaging dated [dates].

Diagnosis. [Veteran] has [diagnosis], confirmed by [basis].

Opinion. It is my opinion that [Veteran]'s [condition] is at least as likely as not (50 percent probability or greater) related to [his/her/their] active military service.

Rationale.

1. The service treatment records document [the injury/exposure] on [date], with complaints of [symptoms] recorded on [dates].
2. [Mechanism: why this event produces this condition, in medical terms.]
3. [Chronology: the pattern and progression, and why it is consistent with a service origin.]
4. [Absence of intervening cause: no documented intervening trauma or alternative etiology.]
5. [Where relevant: the medical literature supporting the association.]

Response to the VA examination. The examiner concluded [X], reasoning that [Y]. I respectfully disagree because [specific medical response — e.g., gaps in treatment do not indicate resolution in a population without health coverage; the pattern is unilateral and post-traumatic rather than age-related].

[Signature · printed name · credentials · NPI · telephone]

*Four things make this work: the records reviewed are identified; the opinion uses "at least as likely as not"; there is a rationale, not a conclusion; and it answers the negative examiner directly.*

C-2. Nexus letter — secondary service connection or aggravation

Opinion (secondary causation). It is my opinion that [Veteran]'s [condition B] is at least as likely as not caused by [his/her/their] service-connected [condition A].

Opinion (aggravation) — state this separately, because it is a separate theory. It is further my opinion that, if [condition B] is not caused by [condition A], it is at least as likely as not aggravated beyond its natural progression by [condition A]. The baseline level of severity before aggravation was [describe], and the current level is [describe].

Rationale. [The physiological mechanism linking A to B — e.g., chronic pain and sleep disruption producing major depressive disorder; weight gain from a service-connected condition and its medication producing or worsening obstructive sleep apnea; altered gait producing contralateral joint degeneration.] [Then: literature; then: absence of alternative explanation.]

Aggravation must be stated as its own opinion with a baseline, or it is not adjudicated.

C-3. Veteran lay statement

STATEMENT IN SUPPORT OF CLAIM — [Name], VA File No. ____

WHAT HAPPENED IN SERVICE
  In [month, year], while assigned to [unit] at [location], I
  [describe the event in plain first-person language]. I [did / did
  not] report it, because ______.

WHAT I EXPERIENCED THEN
  [Symptoms at the time; who else knew; what I did about it.]

WHAT HAS HAPPENED SINCE  (continuity — this is the point)
  After separation in [year], I [symptoms]. I did not seek care
  between ____ and ____ because ______ [no coverage, no VA nearby,
  did not know I could claim it].
  I first sought treatment on [date] with [provider].

WHAT IT IS LIKE NOW  (functional, specific, frequency and duration)
  · I can ______ for about ____ minutes before ______.
  · I stopped ______ in [year].
  · I miss about ____ days of work per month.
  · On a bad day, which happens about ____ times a week, I ______.

I certify the foregoing is true to the best of my knowledge.
______________________  Date: __________

C-4. Buddy statement — often the only evidence of an unreported event

I, [Name], served with [Veteran] in [unit] at [location] from [date] to [date]. My rank at the time was [__].

What I saw. [Specific: "In about March 2004, during a road march near [location], I saw [Veteran] fall and twist his knee. He finished the march limping. Over the following weeks I saw him wrap the knee and skip PT."]

What I observed afterward. [Changes in behavior, performance, or health that I personally observed.]

I am providing this statement of my own knowledge. My contact information is [phone/email].

______________________ Date: __________

C-5. Employer statement — the document that wins TDIU

Re: [Veteran], employed [dates], as [position]

I am [title] at [employer] and was [Veteran]'s [supervisor/owner].

The work. [Veteran] worked [hours per week] as a [position], earning $[__] per [period].

Accommodations provided. [Specific: permitted to leave without notice when symptoms occurred; given a modified schedule; excused from [tasks]; provided a private space; allowed unscheduled breaks totaling about ___ per day.]

Absences. [Veteran] missed approximately [] days in the last [12] months, of which [] were unscheduled. A person in this position without these accommodations would [not have been retained / have been terminated after ___].

Productivity. [Veteran] performed at approximately [__]% of the output expected of others in the position.

Relationship. [Where applicable: [Veteran] is my [relation], and the position was created to accommodate [him/her/them]. It is not a position I would fill from the open market.]

[Signature · title · direct telephone]

"Marginal employment" — earnings below the poverty threshold, or work in a protected environment — does not defeat TDIU. This letter is how that is proved.

SECTION D — THE EXAMINATION

D-1. Preparation sheet (bring it with you)

CONDITION: ______________  DIAGNOSTIC CODE: ______
RATING CRITERIA AT THE NEXT LEVEL UP:
  ______________________________________________

DIAGNOSES: ____________________________________
PROVIDERS: ____________________________________
MEDICATIONS (and side effects): ________________

SYMPTOM LOG — LAST 30 DAYS
  Bad days: ____ of 30.  On a bad day I cannot: ______________
  Average day: I can ______ for ____ minutes before ______
  Flare-ups: ____ per month, lasting ______, treated by ______
  Sleep: ____ hours; interrupted ____ times
  Work missed: ____ days
  Activities STOPPED, and when: ____________________

WHAT I WILL SAY
  · Describe the WORST and AVERAGE, not the best
  · Frequency, duration, and what I have stopped doing
  · Nothing exaggerated

D-2. Examination adequacy review (after you get the report)

□ Does the report state the examiner REVIEWED THE CLAIMS FILE?
□ Were ALL claimed conditions addressed?
□ Were ALL theories addressed — direct, SECONDARY, AGGRAVATION?
  (Aggravation requires a separate opinion WITH A BASELINE.)
□ Does the opinion use "AT LEAST AS LIKELY AS NOT"?
□ Is there a RATIONALE, or only a conclusion?
□ Does the rationale rest on a correct factual premise?
  (Common error: "no in-service treatment" when the records show it.)
□ For musculoskeletal: were FLARE-UPS and REPETITIVE USE addressed?
  Was FUNCTIONAL LOSS considered, not only range of motion?
□ For mental health: was OCCUPATIONAL AND SOCIAL IMPAIRMENT
  addressed, or only a symptom list?
□ Were the veteran's lay statements acknowledged?

IF ANY BOX FAILS → write to VA identifying the specific defect and
requesting a new examination. Duty to assist requires an ADEQUATE
examination; inadequacy is an appeal ground.

SECTION E — DECISION ANALYSIS AND LANE SELECTION

E-1. Decision letter analysis

1. "EVIDENCE" LIST — is everything you submitted listed?
   Missing item: ____________  → DUTY TO ASSIST ground

2. "REASONS FOR DECISION" — which ELEMENT failed?
   □ Current disability   □ In-service event   □ NEXUS
   □ Severity / rating criteria   □ Reasons and bases

3. RATING ARITHMETIC — run B-3. Correct?  □ Yes  □ No

4. EFFECTIVE DATE — intent to file? within a year of separation?
   increase ascertainable up to a year before filing?

5. STAGED RATINGS — did severity vary over the period?

6. SEPARATE RATINGS — distinct symptoms rated separately?
   (Radiculopathy · scars · associated conditions)

E-2. Lane selection matrix — one year from the decision

SECTION F — APPEAL FILINGS

F-1. Supplemental claim cover statement

Re: Supplemental claim — [Name], VA File No. [] — Decision dated []

This supplemental claim is filed within one year of the decision dated [__], which denied service connection for [condition] on the ground that [quote the stated reason].

New and relevant evidence submitted with this claim:

1. Medical opinion of [provider], dated [__] (Exhibit A). Dr. [__] reviewed the service treatment records and the VA examination report and opines that the condition is at least as likely as not related to service. This evidence is new — it was not of record — and relevant, because it tends to prove the nexus element the prior decision found unproven.
2. Buddy statement of [name], dated [__] (Exhibit B), corroborating the in-service event.
3. [Additional evidence.]

Request. That service connection be granted, effective [intent-to-file date / original claim date], and that VA's duty to assist be applied to obtain [any outstanding records identified].

F-2. Higher-level review request — points to raise

NO NEW EVIDENCE MAY BE SUBMITTED. Identify the ERROR in the record.

□ REQUEST THE INFORMAL CONFERENCE — and prepare for it.

ERRORS TO IDENTIFY (cite page and date for each)
  □ The rating criteria were misapplied. The record at [pages]
    documents [findings], which meet the ___% criteria because
    ______________.
  □ The combined rating was miscalculated. Correct calculation: ___
  □ The effective date is wrong. [Intent to file dated ___ /
    claim within one year of separation / increase ascertainable
    from records dated ___.]
  □ Favorable evidence at [page] was not addressed.
  □ The benefit of the doubt was not applied although the evidence
    is in approximate balance. 38 U.S.C. § 5107(b).
  □ A separate rating is warranted for [distinct symptoms].
  □ Staged ratings are warranted for [period].
  □ A duty-to-assist error: [identified records never obtained /
    inadequate examination].

F-3. Board appeal — choosing the option

□ DIRECT REVIEW      No new evidence · no hearing · FASTEST
                     Use when the record supports the grant and the
                     issue is legal.
□ EVIDENCE SUBMISSION  90 days to submit · no hearing
                     Use when you have evidence but not testimony.
□ HEARING            Before a Veterans Law Judge · 90-day
                     post-hearing window · SLOWEST BY FAR
                     Use ONLY where credibility genuinely matters:
                     an unreported in-service event, or a file that
                     understates impairment in a way a person
                     present can convey.

ISSUES TO PRESERVE IN EVERY BOARD APPEAL
  □ Benefit of the doubt, 38 U.S.C. § 5107(b)
  □ Duty to assist, 38 U.S.C. § 5103A
  □ Adequate reasons and bases
  □ Every theory: direct · presumptive · secondary · AGGRAVATION
  □ TDIU, where employment is affected (raised by the record)

SECTION G — TDIU AND SURVIVORS

G-1. TDIU package

□ Schedular threshold: one disability ≥60%, OR combined ≥70% with
  one ≥40%.  (Below? Request EXTRASCHEDULAR referral.)
□ The TDIU form — FILED, not left to inference
□ Employment history: every job, dates, hours, reason for leaving
□ EMPLOYER STATEMENT (C-5) — accommodations, absences, productivity,
  and whether the position is protected
□ VOCATIONAL EXPERT OPINION tying service-connected limitations to
  inability to sustain substantially gainful employment
□ SSA disability determination and file
□ Treatment records showing functional limitation
□ Veteran's own statement on work attempts and why they failed
□ Earnings records (marginal employment = below the poverty
  threshold, or a protected environment)

⚠ WORKING DOES NOT DEFEAT THE CLAIM.

G-2. Survivor claims (DIC and related)

□ DIC — veteran died OF a service-connected condition, OR was
  continuously rated TOTALLY DISABLED for the required period
  before death. Substantial; routinely never claimed.
□ ACCRUED BENEFITS — for a claim pending at the veteran's death
□ SUBSTITUTION — the survivor may substitute into a pending claim
□ Burial allowance · plot allowance · headstone or marker ·
  national cemetery interment
□ SURVIVORS PENSION (needs-based, wartime service)
□ DEA / Fry Scholarship education benefits for dependents
□ CHAMPVA health coverage
□ Home loan guaranty eligibility for a surviving spouse
□ STATE survivor benefits — ask a county/state veterans service
  officer

SECTION H — PRIMARY AUTHORITY

• 38 U.S.C. § 1110 — basic entitlement.
• 38 U.S.C. § 1155 — the rating schedule.
• 38 U.S.C. § 5103 — notice and the duty to assist.
• 38 U.S.C. § 5107 — benefit of the doubt.
• 38 U.S.C. § 7104 — the Board.
• 38 U.S.C. § 7252 — the Court of Appeals for Veterans Claims.
• 38 C.F.R. Part 3 (adjudication, presumptions, effective dates) and Part 4 (rating schedule, § 4.25 combined ratings, § 4.16 TDIU); the Veterans Appeals Improvement and Modernization Act; the PACT Act; the Equal Access to Justice Act.

Related documents

• Veterans Benefits
• Filing and Appealing a VA Disability Claim
• VA Disability Claim and Appeal Checklist
• Social Security Disability Toolkit
• Elder Law Toolkit
• Expungement and Record Relief Toolkit

This toolkit is educational and not legal advice. VA regulations, presumptive lists, and rating criteria change. Adapt every template, and consult an accredited representative — VSO services are free.