The AI-native VA claims agent: a field guide to reading the C-file with AI

Compensation starts at 38 USC 1110: disability "resulting from personal injury suffered or disease contracted in line of duty, or for aggravation of a preexisting injury suffered or disease contracted in line of duty." The Federal Circuit turned that sentence into the 3-part test every rating decision now recites. In Shedden v. Principi, 381 F.3d 1163 (Fed. Cir. 2004), service connection requires "(1) the existence of a present disability; (2) in-service incurrence or aggravation of a disease or injury; and (3) a causal relationship between the present disability and the disease or injury incurred or aggravated during service." Board decisions call element 3 the nexus requirement.

The regulation that governs the read is 38 CFR 3.303. Paragraph (a) tells the adjudicator how to look at the file: "Determinations as to service connection will be based on review of the entire evidence of record, with due consideration to the policy of the Department of Veterans Affairs to administer the law under a broad and liberal interpretation consistent with the facts in each individual case." Paragraph (b) adds that a chronic disease shown in service can be connected without proof of continuity, and that where the in-service condition is not shown to be chronic, "continuity of symptomatology is required." Paragraph (d) allows connection for a disease diagnosed after discharge "when all the evidence, including that pertinent to service, establishes that the disease was incurred in service."

Secondary and aggravation claims

38 CFR 3.310(a) connects a disability that "is proximately due to or the result of a service-connected disease or injury." Paragraph (b) covers aggravation of a nonservice-connected condition by a service-connected one, but VA "will not concede" aggravation "unless the baseline level of severity of the nonservice-connected disease or injury is established by medical evidence created before the onset of aggravation." That baseline sentence is the one secondary claims die on: the private records that show the condition before the aggravation started are the ones no one requested. Paragraph (d) lists conditions VA treats as proximate results of a traumatic brain injury, including parkinsonism and dementias after a moderate or severe TBI, subject to the timing in that paragraph.

C-file

The claims file: every document VA holds on the veteran's claims, now an electronic folder in VBMS. Accredited representatives can get read-only remote access through the regional office, per the Office of General Counsel accreditation page.

STRs

Service treatment records: sick-call notes, enlistment and separation exams, reports of medical history, dental records, immunization records, in-service hospital stays.

C&P exam

Compensation and pension examination. VA orders one only when it needs more information to decide; the VA claim exam page says a claim can also be decided on the records alone through the Acceptable Clinical Evidence process.

DBQ

Disability benefits questionnaire: the structured form an examiner completes for a body system. VA publishes the public DBQ list on its compensation site.

Nexus letter

A private medical opinion that addresses element 3. The physician writes it; the representative's job is to make sure the physician has the right pages.

AOJ

Agency of original jurisdiction, usually the regional office that issued the decision.

A presumption replaces element 3, and sometimes element 2, with a rule. VA's PACT Act page puts it plainly: for a presumptive condition "you don't need to prove that your service caused the condition. You only need to meet the service requirements for the presumption." The representative's read of the C-file changes with a presumption. The question is no longer "where is the nexus" but "do the personnel records put the veteran in the covered place during the covered dates, and does the file show the listed diagnosis."

Chronic diseases within 1 year

38 CFR 3.307(a)(3) presumes service connection for a chronic disease listed in 38 CFR 3.309(a) that becomes "manifest to a degree of 10 percent or more within 1 year" of separation. Leprosy and tuberculosis get 3 years and multiple sclerosis gets 7. The 3.309(a) list includes arthritis, hypertension, diabetes mellitus, psychoses and dozens of others. For a veteran 3 years out of service with an arthritis diagnosis, the question the file has to answer is whether there is any record, VA or private, inside the first 12 months.

Herbicide exposure

38 USC 1116 presumes exposure for "covered service" and connects the diseases it lists. The statute's covered service now includes the Republic of Vietnam from January 9, 1962 to May 7, 1975; any United States or Royal Thai base in Thailand from January 9, 1962 to June 30, 1976; Laos from December 1, 1965 to September 30, 1969; Mimot or Krek, Cambodia, from April 16 to April 30, 1969; Guam or American Samoa from January 9, 1962 to July 31, 1980; and Johnston Atoll from January 1, 1972 to September 30, 1977. The disease list in 1116 and 3.309(e) runs from non-Hodgkin's lymphoma and soft-tissue sarcoma to type 2 diabetes, ischemic heart disease, Parkinson's disease, bladder cancer, hypothyroidism, MGUS and hypertension, with time limits on chloracne and porphyria cutanea tarda. Read the statute list and the regulation list together; the regulation carries the onset-timing rules.

Toxic exposure and burn pits under the PACT Act

Public Law 117-168, approved August 10, 2022, added 38 USC 1119 and 38 USC 1120. Section 1119 presumes toxic exposure for a "covered veteran": service on or after August 2, 1990 in Bahrain, Iraq, Kuwait, Oman, Qatar, Saudi Arabia, Somalia or the United Arab Emirates, or on or after September 11, 2001 in Afghanistan, Djibouti, Egypt, Jordan, Lebanon, Syria, Yemen or Uzbekistan, including the airspace above each. Section 1120 then lists the diseases presumed connected for a covered veteran: asthma diagnosed after service, cancers of the head, neck, respiratory tract, gastrointestinal tract, reproductive organs, kidney, brain and pancreas, lymphoma, melanoma, glioblastoma, chronic bronchitis, COPD, constrictive or obliterative bronchiolitis, emphysema, granulomatous disease, interstitial lung disease, pleuritis, pulmonary fibrosis, sarcoidosis, chronic sinusitis and chronic rhinitis. VA's page counts "more than 20 burn pit and other toxic exposure presumptive conditions."

The 1973 fire at the National Personnel Records Center sits behind many older claims. The VA's evidence page says the fire destroyed records for many Army and Air Force veterans, and that lay evidence on VA Form 21-10210 or 21-4138 can fill part of that gap. In a fire-related file, expect the STR section to be a reconstruction and read the request-and-response correspondence as carefully as the medical pages.

38 USC 5103A(a)(1) requires VA to "make reasonable efforts to assist a claimant in obtaining evidence necessary to substantiate the claimant's claim." The rest of the section sets the floor. For private records, subsection (b)(2)(B) says reasonable efforts include "not less than two requests to a custodian of a private record," unless the first response shows a second request would be futile. For federal records, subsection (c)(1) names service medical records, VA treatment records and relevant records held by any federal department, and (c)(2) says the effort "shall continue until the records are obtained unless it is reasonably certain that such records do not exist or that further efforts to obtain those records would be futile."

The examination duty is in (d)(2). VA must provide an exam or opinion when the record contains competent evidence of a current disability "or persistent or recurrent symptoms of disability," indicates the disability may be associated with service, and "does not contain sufficient medical evidence for the Secretary to make a decision on the claim." Before you ask for an exam, be able to point to the symptom page and the service page that together meet that test.

Where the duty ends

Subsection (e) draws the line: the duty to assist "shall not apply to higher-level review by the agency of original jurisdiction" or to review on appeal by the Board; it applies to the initial claim and to a supplemental claim. Subsection (f) softens that: a higher-level adjudicator or the Board that identifies a duty-to-assist error in the decision under review can return the claim for correction. For the representative, this means the duty-to-assist argument is built from the C-file as it stood at the AOJ decision, which is why the request-and-response correspondence in the file is evidence, not clutter.

38 CFR 3.159(a)(1) defines competent medical evidence as evidence "provided by a person who is qualified through education, training, or experience to offer medical diagnoses, statements, or opinions." Paragraph (b)(4) adds that after a decision, new evidence can be considered only through 1 of the review options in chapter 5. VA's filing page gives the claimant up to a year from the date VA receives the claim to turn in evidence.

• Every custodian the claimant named has at least 2 request letters in the file, or a futility reply5103A(b)(2)(B). Count the letters; do not assume.
• STRs and personnel records are in the file, or a negative response from the service department is5103A(c)(2). A "no records found" letter is a finding to argue over.
• VA treatment records from every facility the veteran named are present through the decision date5103A(c)(1)(B).
• If no exam was ordered, the 3 conditions in 5103A(d)(2) are written out with page citesSymptom page, service page, and why the medical evidence was insufficient.
• If an exam was ordered, the examiner's report shows which records were reviewedChapter 7 on 38 CFR 4.2 and inadequate exams.
• The 21-4142 authorizations on file cover every private provider in the chronologyA provider in the chronology with no authorization is a missing-records flag.

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38 USC 5107(a) puts the burden on the claimant: "a claimant has the responsibility to present and support a claim for benefits." Subsection (b) then sets the tie-breaker: "When there is an approximate balance of positive and negative evidence regarding any issue material to the determination of a matter, the Secretary shall give the benefit of the doubt to the claimant."

38 CFR 3.102 says what the rule is not. Reasonable doubt "exists because of an approximate balance of positive and negative evidence which does not satisfactorily prove or disprove the claim," and "It is not a means of reconciling actual conflict or a contradiction in the evidence." The same regulation extends the rule to the in-service event itself when official records are absent, "particularly if the basic incident allegedly arose under combat." The rating schedule repeats the rule for degree of disability at 38 CFR 4.3, and 38 CFR 4.7 assigns the higher of 2 evaluations when "the disability picture more nearly approximates the criteria required for that rating."

The rule rewards files read for balance. 2 private opinions, continuity notes every year since separation, and a VA opinion that never mentions the in-service page make an approximate balance at worst. A letter that says "at least as likely as not" with no reasoning makes nothing to balance against.

The Appeals Modernization Act replaced the old appeal with 3 options, and 38 CFR 3.2500 is the map. Within 1 year of the decision notice, a claimant may elect higher-level review under 3.2601 or a Board appeal under 20.202. A supplemental claim under 3.2501 can be filed at any time. Paragraph (b) bars concurrent elections on the same issue; paragraph (e) lets a claimant switch options within the 1-year window; paragraph (c) describes continuous pursuit, the chain of timely filings that keeps the original effective date alive.

What each lane can take

Effective dates

38 USC 5110(a)(1) sets the default: the effective date "shall not be earlier than the date of receipt of application therefor." Subsection (a)(2) preserves the original date through continuous pursuit within 1 year of each decision. Subsection (b)(1) reaches back to the day after discharge when the application is received within 1 year of separation, and (b)(3) lets an increase take effect on the earliest date the increase was ascertainable if the claim arrives within 1 year of that date. 38 CFR 3.400 states the general rule as "the date of receipt of the claim or the date entitlement arose, whichever is later."

2 tools move the date. An intent to file under 38 CFR 3.155(b), submitted on VA Form 21-0966, holds the date while the claim is prepared; the form's own page says it "can secure the earliest possible effective date." And 38 CFR 3.156(c) reopens the date when relevant official service department records that existed but were not in the file at the time of a prior decision turn up: VA reconsiders the claim, and the effective date can be the date entitlement arose or the date VA received the earlier claim. 3.156(c) is the reason the personnel-records section deserves a page-by-page inventory against what the prior rating decision says it reviewed.

1. 06/14/2012
   Separation

   DD214 shows active duty 2004 to 2012. The 1-year window under 5110(b)(1) opens.

   Hypothetical dates, built on 38 USC 5110(b)(1)
2. 03/02/2016
   Original claim received

   Lumbar spine condition claimed. More than 1 year after separation, so the effective date floor is this date.

   5110(a)(1); 3.400
3. 11/18/2016
   Rating decision: denied, no nexus

   The 1-year clock for HLR or a Board appeal starts at the notice.

   3.2500(a)
4. 11/2017 to 02/2024
   No filing

   Continuous pursuit broken. The 2016 date is lost unless 3.156(c) applies.

   5110(a)(2); 3.2500(c)
5. 02/09/2024
   Intent to file

   VA Form 21-0966 received. Holds the date while the supplemental claim is built.

   3.155(b)
6. 08/30/2024
   Supplemental claim with a private nexus letter

   New and relevant evidence. Duty to assist applies again. Effective date runs from the intent to file.

   3.2501; 5103A(e)

A C-file is assembled by VA in the order things arrived, and runs from about 300 pages to about 5,000. Read front to back, the 2019 rating decision arrives before the 2009 sick-call note it relies on. The order below lets each section tell you what to look for in the next.

1. The rating decisions and code sheets, newest first. Each decision lists the evidence it considered, the element it found missing and the diagnostic code it rated. The evidence list is your inventory: anything in the file that is not on the list was not read.
2. The DD214 and personnel records. Dates, places, MOS, awards, deployments. This is where presumptions live and where 3.156(c) records hide. A deployment to a 1119 country turns a nexus case into a presumption case.
3. The STRs, every page. Enlistment exam and report of medical history, sick-call notes, the separation exam and the separation report of medical history. The separation history is the single most-quoted page in a nexus letter, because the veteran either checked the box or did not.
4. The C&P exam reports and DBQs. Read the opinion last and the "evidence reviewed" section first. 38 CFR 4.2 requires the rater to read a report "in the light of the whole recorded history" and to return it as inadequate if "the report does not contain sufficient detail."
5. VA treatment records. Long, repetitive, and the usual source of the current diagnosis and of continuity. Problem lists, medication lists and imaging reports carry most of the weight.
6. Private records. Often the only pre-claim evidence of continuity. Also the section most likely to be incomplete, because it depends on the 21-4142 requests in chapter 3.
7. Lay statements and the claimant's own forms. The 21-526EZ, 21-4138 statements, buddy statements. Read them for dates that the medical pages can confirm or contradict.

Where the hours go on a 1,500-page C-file

About 2 of every 3 hours in that budget go to pages that will never be cited: templated VA notes, duplicate productions, administrative mail. The 6-hour chronology is a second pass over pages already read once. Chapter 7 moves both to software and keeps the verification with the representative.

An AI-native practice does not read the C-file faster. It reads it once, by machine, into a structure the representative can verify, then spends the human hours on the pages that decide the claim. The structure is what a careful paralegal would build by hand: a cited chronology, split at the separation date, with the rating criteria and the nexus elements laid over it. Every line carries its page, so the representative verifies instead of transcribes.

1. Upload the C-file export as received. No pre-sorting, so every citation keeps VA's page numbers.
2. Deduplicate. STR pages appear 2 or 3 times across productions. The software collapses exact and near-duplicate pages and keeps the page map, so a cited page is 1 page.
3. OCR with handwriting routing. Optical character recognition handles the typed pages; handwritten notes are routed for a separate pass and flagged with lower confidence, so you know which pages to read yourself.
4. Build the cited chronology, split in-service and post-service. Every dated clinical entry becomes a line with date, source, provider, finding and page. The separation date from the DD214 becomes the dividing line.
5. Locate the in-service event. From the in-service half, list every entry that touches the claimed system: complaint, exam finding, diagnosis, profile, separation history answer.
6. List current diagnoses. From the post-service half, the most recent diagnosis per condition, with the clinician and the page, plus every earlier diagnosis of the same condition.
7. Trace continuity. The post-service entries between separation and the first diagnosis, with the gaps measured in months and named as gaps.
8. Pull rating-criteria findings. For the diagnostic code in play, the measurements the 38 CFR Part 4 criteria ask for: range of motion in degrees, frequency of prostrating attacks, CPAP prescription, the symptom list a mental health rating turns on.
9. Produce the nexus evidence list and the missing list. The pages a physician needs to write a reasoned opinion, and the records that should exist but are not in the file.
10. Verify by tier, then write. Chapter 9 sets the tiers. The argument is the representative's, written from verified lines.

What the rating criteria ask the file for

38 CFR 4.1 says "accurate and fully descriptive medical examinations are required, with emphasis upon the limitation of activity imposed by the disabling condition," and that each disability "be viewed in relation to its history." The criteria are specific, and the evidence request to a physician should ask for the measurements the criteria name. 4 codes that come up constantly:

Laying the nexus elements over the chronology

The physician needs the chronology read against the 3 elements. The grid below is that output, with a hypothetical lumbar claim filled in: each row pairs an element with the page that answers it, or with a named gap.

The grid does not say the claim should be granted, does not score the nexus, and does not tell the physician what to conclude. It gives the physician the pages. Nieves-Rodriguez v. Peake, 22 Vet. App. 295 (2008), is why that is enough: the Court held that an opinion's weight comes from its reasoning, not from whether the author reviewed the claims file, so a private physician with the right 12 pages can out-reason a VA examiner with all 1,512.

"clear conclusions with supporting data, and a reasoned explanation that connects the two"

The software finishes the first pass in about 15 minutes at 100 pages a minute. It reports 1,512 pages received, 1,188 unique after duplicates, 41 pages routed as handwritten with low confidence, and 1 page flagged as belonging to a different veteran, a misfiled lab slip with another name and a different date of birth. The attorney's first act is to open that page, confirm the flag, and set the page aside for a letter to the regional office. The flag is a signal; the attorney's read is the finding.

1. 03/17/2009
   Sick call, in service

   "Low back pain x 2 wk after lifting ammo cans. No radiation. Motrin, profile 7 days." Handwritten; the attorney reads the original and corrects "ammo cans," which the OCR pass had rendered as "arms care."

   STR p. 412, handwritten, low confidence
2. 06/02/2012
   Separation report of medical history

   "Recurrent back pain or any back problem" checked yes. Physician's note: "mechanical LBP, intermittent."

   STR p. 486
3. 06/2012 to 08/2013
   14 months, no records

   The 21-526EZ names a chiropractor seen from 09/2013. No records in the file and 1 request letter, not 2.

   Missing-records flag; duty-to-assist question under 5103A(b)(2)(B)
4. 10/04/2016
   VA exam

   Forward flexion 70 degrees. Diagnosis: lumbar strain. Opinion: less likely than not, "no treatment for several years after service." Evidence reviewed: STRs and VA records; the chiropractic records are not mentioned.

   C&P report p. 698 to 706
5. 11/18/2016
   Rating decision

   Denied. Elements 1 and 2 conceded; nexus missing.

   Rating decision p. 12 to 19
6. 04/22/2021
   MRI, VA

   "L4-L5 disc degeneration with moderate foraminal narrowing."

   VA imaging report p. 1,104
7. 02/2024
   VA primary care

   Problem list: lumbar degenerative disc disease. "Flares 2 to 3 times a month, misses work." No range of motion recorded.

   VA note p. 1,290

What the read produces

The new and relevant evidence is the chiropractic file and the private opinion. The duty-to-assist point, 1 request letter where the statute requires 2, goes into the submission as well. The attorney writes the argument; the physician writes the opinion; the software produced the page map that let both of them start from the same 12 pages. The 45-degree measurement, if the examiner confirms it, falls in the 20 percent band under 4.71a, which is the physician's measurement to record and the rater's call to make.

An AI-native practice lives or dies on 1 habit: nothing enters a filing that the representative has not seen at the source page. The tiers below apply that rule to a file too long to re-read. They are a method, not a standard; 38 CFR 14.632(b)(1) sets the standard, which is competent representation with "the knowledge, skill, thoroughness, and preparation necessary for the representation."

The tiers move when the file does. A handwritten sick-call note is tier 1 whether or not it enters a filing, because the OCR confidence is low. The missing-records list is tier 3 until a provider on it turns out to be the continuity evidence, and then every page from that provider is tier 1.

• Every page cited in the filing was opened and read by the signerTier 1. No exceptions for "the software is usually right."
• Every low-confidence or handwritten page in the claimed body system was read at the sourceTier 1 by rule.
• The wrong-patient flags were resolved and the pages reported to VAAnother veteran's record in the file is a privacy problem as well as an evidence problem.
• The chronology sample was read and the error rate written downTier 2. If the sample finds errors, widen the sample.
• The inventory was compared with the rating decision's evidence listTier 3 by exception. Every mismatch becomes an argument or a request.
• The missing-records list went out as requests, with the 21-4142s attachedAnd a copy in the file, so the second request is provable later.

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Copy, then edit. Each template assumes the chronology and page map exist. None of them asks a physician what to conclude, and none of them lets software decide anything.

[DATE]

[PHYSICIAN NAME], [CREDENTIALS]
[PRACTICE, ADDRESS]

Re: [VETERAN NAME], DOB [DATE], VA file no. [NUMBER]
Condition under review: [CONDITION], claimed as related to service [BRANCH, DATES]

Dear Dr. [NAME],

I represent [VETERAN] before the Department of Veterans Affairs. VA has [denied / not yet decided]
service connection for [CONDITION]. [If denied: The November 2016 decision found a current diagnosis
and an in-service complaint but no medical link between them.]

I am asking whether you are willing to review the enclosed records and give your medical opinion,
whatever that opinion is. VA weighs an opinion by its reasoning, so if you write one, please state
the records you relied on and explain how they support your conclusion.

Enclosed, by page number from the VA claims file:
  1. In-service entries: [p. 412, sick call 03/17/2009; p. 486, separation history 06/02/2012]
  2. Post-service treatment, in date order: [p. ___ to ___]
  3. Current diagnosis and imaging: [p. 1,104 MRI 04/22/2021; p. 1,290 problem list 02/2024]
  4. The VA examiner's opinion of [DATE], p. [___], and the records that examiner listed as reviewed
  5. Lay statements: [p. ___]
Records I have requested but not yet received: [PROVIDER, DATES]. I will forward them if they arrive.

If you give an opinion, VA's standard is whether it is "at least as likely as not" (50 percent or
greater probability) that the current condition [began in / was caused by / was aggravated by]
service. Please address, in your own words:
  a. The current diagnosis you find supported, and by which records.
  b. Whether the in-service entries describe an injury or disease that could produce this condition,
     and the mechanism, if any.
  c. How you read the gap between [DATE] and [DATE] in treatment records.
  d. Any findings VA's rating criteria for this condition ask for: [e.g., forward flexion in degrees;
     frequency of prostrating attacks per month; whether a CPAP is prescribed].
  e. Anything in the records that cuts against your conclusion, and how you weigh it.

I do not need the opinion to reach any particular result. Please bill [THE VETERAN / THIS OFFICE] for
your review time at your usual rate.

[REPRESENTATIVE NAME], [VA accreditation no.]
[FIRM, PHONE, EMAIL]

C-FILE REVIEW WORKSHEET
Veteran: [NAME]   File no.: [NUMBER]   Condition: [CONDITION]   Diagnostic code: [DC]
Reviewer: [NAME]   Date: [DATE]   Pages: [N] received, [N] unique, [N] low-confidence

A. POSTURE
  Last decision [DATE]: [GRANT / DENIAL / RATING]   Notice date: [DATE]   1-year window closes: [DATE]
  Element(s) VA found missing: [ ]   Lane: [SUPPLEMENTAL / HLR / BOARD: docket]
  Intent to file: [DATE or NONE]   Continuous pursuit intact: [YES / NO, broken on DATE]

B. SERVICE AND PRESUMPTIONS
  Branch, dates, deployments with locations: [ ]   DD214 p. [ ]   Orders p. [ ]
  Screen: 1116 [Y/N]   1119 [Y/N]   3.309(a) within 1 year [Y/N]   Listed disease: [DX, p. ___] or NONE

C. ELEMENT 1, CURRENT DISABILITY
  Most recent diagnosis: [DX], [CLINICIAN], [DATE], p. [ ]   Earlier: [DATE, p. ___]   Imaging: [DATE, p. ___]

D. ELEMENT 2, IN-SERVICE EVENT
  Enlistment exam/history: [DATE, p. ___]   Every in-service entry: [DATE, p. ___, quote]
  Separation exam/history: [DATE, p. ___, box checked Y/N, note]   Lay statements: [p. ___]

E. ELEMENT 3, NEXUS
  VA opinion(s): [DATE, p. ___, conclusion, reasoning, records reviewed]   Private: [DATE, p. ___]
  Continuity, separation to first diagnosis: [DATE, p. ___] ...   Gaps over 12 months: [FROM-TO]
  Secondary theory: SC condition [ ]   Baseline before aggravation: p. [ ] or NONE

F. RATING CRITERIA (38 CFR Part 4, DC [ ])
  Measurement the code uses: [ ]   Most recent value: [ ], [DATE], p. [ ]

G. DUTY TO ASSIST
  Providers named: [ ]   Request letters per provider: [N]   Responses: [p. ___]   Exam ordered: [Y/N]

H. FLAGS
  Wrong-patient pages: [p. ___]   Handwritten pages read at source: [p. ___]
  Pages not on the rating decision's evidence list: [p. ___]   Records expected but absent: [PROVIDER, DATES]

I. NEXT ACTIONS, DATED
  [ ] Records requests   [ ] Evidence request to physician   [ ] Lane election by [DATE]   [ ] Client letter

You are organizing a VA claims file for an accredited representative. You do not decide claims, rate
disabilities or give opinions on causation. Every line you produce must cite a page number from this
file. If you cannot find a page for a fact, write "NOT FOUND" instead of guessing.

Separation date: [DATE from DD214]. Claimed condition(s): [CONDITION(S)].

Produce, in this order:
1. INVENTORY: total pages, unique pages after duplicates, document types with page ranges, pages you
   could not read with confidence (handwritten, faint, rotated) listed by page number, and any page
   that appears to belong to a different person (name or date of birth mismatch), listed by page.
2. IN-SERVICE CHRONOLOGY: every dated clinical entry on or before the separation date that mentions
   [BODY SYSTEM / CONDITION], with date, document type, author if shown, a verbatim quote of the
   relevant words, and page. Include enlistment and separation exams and reports of medical history
   even if normal.
3. POST-SERVICE CHRONOLOGY: every dated entry after separation that mentions the condition, same
   fields. Mark gaps longer than 12 months between entries as "GAP: [months]".
4. CURRENT DIAGNOSES: for each diagnosis of the claimed condition, the most recent entry with
   clinician, date and page, and the earliest entry.
5. OPINIONS IN THE FILE: every medical opinion on causation, with date, author, conclusion quoted,
   the records the author says were reviewed, and page.
6. RATING CRITERIA FINDINGS: for [DIAGNOSTIC CODE], list every measurement the criteria use
   [e.g., forward flexion in degrees] with value, date and page.
7. PROVIDERS NAMED BUT NOT PRODUCED: any provider, facility or test mentioned anywhere in the file for
   which no records appear, with the page where it is mentioned.
Do not summarize. Do not characterize the strength of the claim. Quote, date, cite.

Large language models are good at the part of a C-file that costs the most hours: reading 1,200 unique pages, finding every dated entry about a lumbar spine, and laying them in order with the page beside each. With OCR and natural language processing over scanned military forms, that is an AI medical record review a representative can check. The failure modes are just as specific.

Where it fails

What 38 CFR 14.632 asks of you

The standards of conduct for accredited representatives were written before generative AI, and they apply to it anyway. Paragraph (a)(2) says representatives "are required to be truthful in their dealings with claimants and VA." Paragraph (b)(1) requires competent representation with the knowledge, skill, thoroughness and preparation the matter needs. Paragraph (c)(3) prohibits fraud, deceit, misrepresentation or dishonesty; (c)(7) prohibits delaying a case "without good cause"; and (c)(10) prohibits disclosing, "without the claimant's authorization, any information provided by VA for purposes of representation." Paragraph (d) adds that attorneys are also bound by their state rules of professional conduct.

3 consequences follow. A filing with a quote the signer never checked at the page is a truthfulness problem under (a)(2) and (c)(3), and "the software produced it" is not a defense the regulation recognizes. Under (c)(10) and the state rules, the C-file does not go to any AI vendor without the claimant's informed authorization and a contract that keeps the data inside the representation: for health information, a business associate agreement. And (c)(7) cuts the other way: a 35-hour manual read that pushes a supplemental claim past a 1-year window is a diligence question of its own. The position this guide describes sits between them: software reads, the representative verifies and signs.

Choosing a vendor

VSO representatives face the same questions with less budget and more volume. The VA representative page notes that VSO services are always free, while accredited attorneys and claims agents may charge for work after the initial decision, under the fee rules in 38 CFR 14.636. For a VSO, the value of an AI document review is the inventory and the chronology on the files that would otherwise never get a full read at all. The verification tiers do not change; the accreditation rules do not change; the representative still signs.

Medrecords AI publishes this guide and builds the kind of software chapter 7 describes. It is AI-assisted medical record review for legal and claims work: upload the C-file export, and it comes back as a cited chronology, a diagnosis list, a flag report and an answerable record. It does not write the nexus opinion, rate the claim, or advise on the lane. You review, you revise, you sign.

Its flags are signals, not verdicts. A flag that says a chiropractor is named on page 9 and appears nowhere else tells you where to look; whether that is a duty-to-assist error is your call. Security is SOC 2 and HIPAA with a BAA; see security and HIPAA. Self-Service starts at 10 cents a deduplicated page, down to 5 cents at volume. Duplicate pages are free. Enterprise On-Prem is an annual license, no per-seat fees. Details are on the pricing page.

The VA pages go deeper by role: VA-accredited representatives, VA C-file review, nexus letter record review, veteran disability claims and, for examiners on the other side of the DBQ, VA C&P contractors.

What are the 3 elements of service connection?

A current disability, an in-service incurrence or aggravation of a disease or injury, and a nexus between them, as the Federal Circuit put it in Shedden v. Principi (2004). 38 CFR 3.303 governs the read of the file, and presumptions under 3.307, 3.309 and 38 USC 1116, 1119 and 1120 can supply the nexus by rule.

What is a C-file?

The VA claims file: every document VA holds on the veteran's claims, including service treatment records, personnel records, prior rating decisions, C&P exam reports and DBQs, VA treatment records, private records VA obtained, and the claimant's own forms and statements. Accredited representatives can get read-only electronic access through the regional office.

What did the PACT Act change?

Public Law 117-168, signed August 10, 2022, added 38 USC 1119 and 1120. Section 1119 presumes toxic exposure for service in listed Gulf and Southwest Asia locations on or after August 2, 1990, and in further listed countries on or after September 11, 2001. Section 1120 lists the conditions presumed connected for those veterans, from asthma diagnosed after service to several cancers and chronic lung diseases.

Does the duty to assist apply on appeal?

Not to higher-level review or Board review. 38 USC 5103A(e) limits the duty to initial and supplemental claims, but 5103A(f) lets a higher-level adjudicator or the Board send a claim back when it finds a duty-to-assist error in the decision under review.

Can a private nexus letter outweigh a VA examiner's opinion?

Yes, if its reasoning is better. In Nieves-Rodriguez v. Peake (2008) the Court of Appeals for Veterans Claims held that an opinion's weight comes from clear conclusions, supporting data and a reasoned explanation connecting them, not from whether the author reviewed the claims file. A private physician who has the right pages can write that opinion.

How much can an accredited attorney or claims agent charge?

Only for work after the agency of original jurisdiction issues notice of its initial decision, under 38 CFR 14.636(c). A fee of 20 percent or less of past-due benefits is presumed reasonable; more than 33 1/3 percent is presumed unreasonable. VSO representation is free.

Can AI write a nexus letter?

No, and a representative should not want it to. The opinion must be a physician's, reasoned from the records, to carry weight under Nieves-Rodriguez. What AI can do is build the cited page map the physician needs: the in-service entries, the continuity record, the current diagnosis and the measurements the rating criteria ask for.

Is it safe to upload a C-file to an AI tool?

Only to a HIPAA-compliant AI vendor under a signed business associate agreement, with the claimant's authorization, SOC 2 controls and written terms that the records are not used for training. 38 CFR 14.632(c)(10) bars disclosing information VA provided for the representation without the claimant's authorization, and attorneys also carry their state confidentiality rules.

How do I verify an AI medical chronology of a C-file?

By tier. Every line that enters a filing, an evidence request or a client letter is read at the source page by the signer. Lines that only support the picture are sampled, 1 in 10 plus every line near separation and near any cited date. Inventory output is checked by exception, against the flags and the rating decision's evidence list.

What should an AI tool never do on a VA claim?

Decide or score it. A tool that says a claim is strong, that the nexus is established, or that a rating should be 40 percent is giving an opinion the representative will sign for under 38 CFR 14.632. The right output is pages, dates, quotes, measurements and gaps.

What is the difference between a supplemental claim and higher-level review?

A supplemental claim needs new and relevant evidence and brings back the duty to assist, so VA can order an exam. Higher-level review takes no new evidence; a more senior adjudicator re-reads the same record for error. Both must be elected within 1 year of the decision notice to preserve the effective date, under 38 CFR 3.2500.

Statutes and regulations were read on eCFR and the Cornell Legal Information Institute on October 6, 2026, and quoted text is verbatim. VA's own pages were read the same day. The Shedden quotation is as Board decisions reproduce it; the Nieves-Rodriguez quotation is from the opinion. The 1,512-page C-file, the sample veteran, the rating decision, the hours ledger and every page number in the worked example are hypothetical. Product facts come from this site's product pages. The verification tiers are this guide's method, not a VA or bar standard. Nothing here is legal or medical advice.

• 38 USC 1110, basic entitlement; 38 USC 1116, herbicide presumptions and covered service; 38 USC 1119 and 38 USC 1120, toxic exposure presumptions; 38 USC 5103A, duty to assist; 38 USC 5107, burden and benefit of the doubt; 38 USC 5110, effective dates; 38 USC 7105, notice of disagreement.
• 38 CFR 3.102, reasonable doubt; 38 CFR 3.159, VA assistance; 38 CFR 3.303, principles of service connection; 38 CFR 3.307 and 38 CFR 3.309, presumptive conditions; 38 CFR 3.310, secondary service connection; 38 CFR 3.400, effective dates; 38 CFR 3.2500, review options.
• 38 CFR 4.1, 4.2, 4.3 and 4.7, rating schedule principles; 4.71a, spine; 4.97, sleep apnea; 4.124a, migraine; 4.130, mental disorders.
• 38 CFR 14.632, standards of conduct for accredited representatives; 38 CFR 14.636, fees; VA Office of General Counsel, accreditation.
• Public Law 117-168, the PACT Act, approved August 10, 2022; VA, the PACT Act and your VA benefits.
• VA pages: evidence needed; how to file; VA claim exam; decision reviews; effective dates; accredited representatives; forms 21-0966, 21-4142 and 20-10206; DBQs.
• Shedden v. Principi, 381 F.3d 1163 (Fed. Cir. 2004), as quoted in Board decisions, for example Citation Nr. 21023325; Nieves-Rodriguez v. Peake, 22 Vet. App. 295 (2008); Mata v. Avianca, Inc., 678 F. Supp. 3d 443 (S.D.N.Y. 2023).

Related guides: how to read a VA C-file, the AI-native IME physician, medical source statements and RFC, a verified medical chronology from scanned records, HIPAA-compliant AI medical record review and AI versus human medical record review.