Military Sexual Trauma (MST) Claims

This guide is a focused resource that helps veterans understand how the Department of Veterans Affairs evaluates claims related to military sexual trauma, including sexual assault and sexual harassment experienced during service. This page explains how MST claims are handled differently from other disability claims, including the VA's relaxed evidence standards that allow "markers" such as behavioral changes, medical visits, performance declines, or counseling records to support a claim even when the event was not officially reported. It also breaks down how MST is commonly linked to conditions like PTSD, depression, anxiety, and other mental health disorders, and how those conditions are rated under 38 CFR § 4.130. You will find clear guidance on filing a claim, what types of evidence are accepted, how C&P exams are conducted with trauma-informed procedures, and what veterans can expect during the decision process. Whether you are filing for the first time or appealing a denial, this guide helps you understand how MST claims are evaluated and what evidence most strongly supports a successful outcome.

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What Is MST?

Military Sexual Trauma (MST) is the VA's term for sexual assault or repeated, threatening sexual harassment that occurred during military service. MST is not a diagnosis, it is a stressor event. You do not file a claim for "MST." You file for the conditions MST caused - most commonly PTSD, depression, or anxiety.

The legal framework is 38 CFR § 3.304(f)(5), which establishes a relaxed evidentiary standard specifically for personal assault claims, including MST. This means the VA cannot require the same level of proof it requires for other types of PTSD claims.

MST affects all genders. While women file MST claims at higher rates, men represent a significant number of MST survivors. The VA's MST screening finds that approximately 1 in 3 women and 1 in 50 men report experiencing MST during service.

What to Claim on Your Application

This is the most important section. MST itself is not a ratable condition. You must claim a diagnosable condition that was caused by the MST. Here are the conditions to consider:

Primary Conditions (claim one or more)

  • PTSD (DC 9411) - the most common MST-related claim. Rated 0-100% based on occupational and social impairment.
  • Major Depressive Disorder (DC 9434) - if depression is your primary symptom rather than classic PTSD symptoms.
  • Generalized Anxiety Disorder (DC 9400) - chronic anxiety, hypervigilance, difficulty concentrating.
  • Other specified trauma disorder (DC 9440) - adjustment disorders related to the trauma.

Exactly What to Write on VA Form 21-526EZ

In Section 1 of the form, under "Disabilities," write:

Condition: PTSD (post-traumatic stress disorder)
Cause: Due to military sexual trauma (personal assault) during service
Date of onset: [Month/Year the symptoms began]

If you have multiple conditions (PTSD + depression + anxiety), list each separately with "due to military sexual trauma" as the cause for each. You can also write "PTSD (post-traumatic stress disorder) due to MST" in the VA.gov dropdown. It will accept this.

Common mistake: Do not write "Military Sexual Trauma" as the condition. Write the diagnosable condition (PTSD, depression, anxiety) and state it is due to MST. If you just write "MST," the VA will ask for clarification, delaying your claim.
If your diagnosis shifts during the claim: MST-related claims often start as PTSD and end with a different mental-health diagnosis (MDD, GAD, adjustment disorder). Under M21-1, Part V, Subpart iii, Chapter 13, Section 1.a (updated 2026-05-27) and Robinson v. Shinseki, 557 F.3d 1355 (Fed. Cir. 2009), VA must read your claim as covering any mental disability reasonably supported by your symptoms and evidence, regardless of the label you used on the application. The General Rating Formula at 38 CFR § 4.130 uses the same criteria for nearly all mental disorders, so the rating outcome is usually the same. See the sympathetic-reading section for the procedure if a denial turns on your label rather than your evidence.

Filing the 21-526EZ: Step by Step

Step 1: File Your Intent to File

Call 1-800-827-1000 or file at VA.gov. This locks in your effective date. Every day you wait is a day of back pay you lose.

Step 2: Complete VA Form 21-526EZ

You can file online at VA.gov or with a VSO representative. On the form:

  • List each condition separately (PTSD, depression, etc.)
  • For each condition, state "due to military sexual trauma" or "due to personal assault"
  • You will be asked to complete VA Form 21-0781a, the Statement in Support of Claim for PTSD Secondary to Personal Assault. This is where you describe what happened and list your evidence markers.
This form is highly personal and legally significant. A VSO representative or VA MST Coordinator can help you complete it at no charge. Find your VA MST Coordinator →

Step 3: Submit VA Form 21-0781a

This is the critical form for MST claims. It asks you to describe:

  • The traumatic event(s), in as much detail as you are comfortable providing
  • Behavioral changes after the event (the "markers", see next section)
  • Sources of evidence that may corroborate the event
You control how much detail you share. The form asks for a description, but you decide the level of detail. A brief factual statement combined with strong marker evidence is sufficient. You do not need to relive the trauma in writing. A VSO representative or victim advocate can help you complete this form.

Step 4: Gather Your Evidence

This is where MST claims differ from other claims. See the full list of accepted markers below.

Step 5: Get a Nexus Letter

A private medical opinion (nexus letter) from a psychologist or psychiatrist linking your current diagnosis to the in-service MST is the single strongest piece of evidence. In our BVA data, PTSD appeals were granted about 97% of the time when a nexus letter was in the file. That reflects a pattern in already-decided appeals (cases with a nexus letter also tend to be stronger overall), not a prediction of your individual outcome.

Accepted Evidence Markers

Under 38 CFR § 3.304(f)(5), the VA must consider these behavioral and circumstantial markers as evidence that MST occurred, even without a service record of the event:

✓ Request for transfer to another unit or duty assignment
✓ Deterioration in work performance (drop in evaluations, Article 15s)
✓ Substance abuse onset or escalation during/after service
✓ Depression, panic attacks, or anxiety without prior history
✓ Unexplained economic or social behavior changes
✓ Relationship breakdowns (divorce, breakups) around the time of the event
✓ Pregnancy tests or STI tests in service treatment records
✓ Requests for HIV testing
✓ Eating disorder onset or significant weight changes
✓ Sexual dysfunction
✓ Increased sick call or leave without clear medical cause
✓ Statements from family, roommates, fellow service members, or clergy
✓ Records from rape crisis centers, counseling, or hospitals
✓ Personal journals or diaries from the time period
✓ Changes in performance reports correlating with the timeframe
✓ Counseling statements or disciplinary actions around the same period
You do not need all of these. Even one or two strong markers combined with a current diagnosis and nexus letter can be enough. The VA is required to consider each marker. They cannot dismiss your claim simply because there is no police report or official record of the assault.

How to Get Your Records

  • Service Personnel Records: Request your complete personnel file from the National Personnel Records Center (SF-180 form). Look for performance evaluations, counseling statements, and any changes around the time of the trauma.
  • Service Treatment Records: Request from NPRC. Look for mental health visits, STI tests, pregnancy tests, or any medical visits around the timeframe.
  • Buddy Statements: Ask anyone who observed behavioral changes (spouse, roommate, fellow service member, family member) to write a statement describing what they noticed and when.

The 51% Error Rate

A VA Office of Inspector General audit (October 2023 - January 2024) found that 51% of MST claims were processed incorrectly.

Key findings:

  • 46% of denied MST claims were denied without the VA ordering a required C&P exam
  • The centralized MST Operations Center has 22.6% staff turnover (vs 7.5% VA-wide)
  • Many claims processors lacked specialized MST training
If you were denied: Your denial may have been processed incorrectly. You have three appeal options: Supplemental Claim (submit new evidence), Higher-Level Review (senior rater re-reviews), or Board of Veterans' Appeals. See our appeals guide →

The overall MST claim grant rate is 63%, up from 40% a decade ago. This means the system is improving, but errors remain common. Having strong evidence and a VSO representative significantly improves your chances.

Your Rights at the C&P Exam

If the VA orders a Compensation & Pension exam for your MST claim, know these rights:

  • You can request the gender of your examiner. If you are more comfortable with a female or male examiner, tell the VA when scheduling. This is your right.
  • You can bring a support person - a friend, family member, VSO representative, or victim advocate can accompany you.
  • You do not have to describe the assault in graphic detail to the examiner. A factual summary is sufficient. The examiner is assessing your current symptoms, not investigating the event.
  • Describe your worst days. The examiner rates your current level of impairment. Be honest about how bad it gets: frequency of nightmares, panic attacks, difficulty working, relationship problems.
  • If the examiner seems dismissive or uninformed about MST, document this and report it to your VSO representative. You can request a new exam.
BVA data insight: In our analysis of 810,000+ BVA appeal decisions, PTSD appeals were granted about 96% of the time when a private medical opinion (nexus letter) was in the file, versus about 70% when the evidence rested on a VA examination. These are patterns across decided appeals (stronger cases tend to carry a private opinion), not a prediction of any one claim. Still, if your C&P exam result seems inaccurate, a private opinion can carry significant weight.

Secondary Conditions to Consider

MST can cause or worsen conditions beyond PTSD. Consider filing for these as secondary to your MST-related primary diagnosis:

  • Sleep disorders - insomnia, nightmares, sleep apnea (secondary to PTSD)
  • Migraines - chronic headaches secondary to PTSD/anxiety
  • Eating disorders - anorexia, bulimia (separately ratable)
  • Substance use disorders - secondary to PTSD/depression
  • Fibromyalgia - research links trauma to central sensitization
  • Sexual dysfunction - directly related to MST
  • Irritable Bowel Syndrome (IBS) - stress-related gastrointestinal conditions
  • TMJ / teeth grinding - stress and anxiety-related

Each secondary condition requires a nexus letter from a medical provider linking it to your primary MST-related diagnosis. Use our Secondary Conditions tool →

Free MST Treatment

MST-related treatment is free for every veteran, regardless of:

  • Whether you have a service-connected disability rating
  • Whether you are enrolled in VA healthcare
  • Whether you reported the MST during service
  • Your discharge status
  • Your gender

You do not need to provide documentation that MST occurred to receive free treatment. Simply tell the VA you experienced MST and they must provide care.

If your discharge characterization was influenced by MST: the Kurta memo (2017) directs the Discharge Review Board and BCMR to apply liberal consideration to upgrade applications connected to MST. See the record-corrections guide for the DRB / BCMR / DARB paths.

Types of Treatment Available

  • Individual therapy - including Cognitive Processing Therapy (CPT) and Prolonged Exposure (PE)
  • Group therapy - MST-specific support groups
  • Medication management - for depression, anxiety, sleep, nightmares
  • Residential/inpatient programs - intensive treatment programs for MST survivors
  • Vet Center counseling - confidential counseling in non-clinical community settings

MST Coordinators

Every VA medical center has a designated MST Coordinator who can connect you with treatment, answer questions, and help navigate the system. Ask at the front desk or call your local VA medical center.

Resources

Veterans Crisis Line

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You are not alone. 57,400 MST claims were filed in FY2024 alone, and the grant rate is 63%. The evidence standard is on your side. A VSO representative experienced in MST claims can help you navigate the process.

Sources: 38 CFR § 3.304(f)(5) · VA MST and Disability Compensation · VA OIG Denied MST Claims Report · VA News: MST Grant Rate Increase · RateMyVSO BVA analysis of 829,000+ appeal decisions. This guide is for educational purposes only and is not legal or medical advice. Find a VSO representative for personalized guidance.