Mental Health, PTSD, & Military Sexual Trauma

These cases address psychiatric disability claims, PTSD, military sexual trauma, stressor development, lay evidence, behavioral markers, rating mental health symptoms, and VA’s obligations when evaluating mental health evidence.

How Case Law Helps VA Claims
Court decisions explain how statutes, regulations, evidence, medical opinions, and VA procedures must be applied in real claims. They help identify controlling legal standards and errors in VA decisions.
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Start by selecting the legal issue that matches the claim or appeal. Then narrow the results by court level or year. Use the case summaries to identify decisions that may help explain the rule controlling the VA issue.
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Cases Found: 8

Amberman v. Shinseki — Separate psychiatric ratings barred when symptoms overlap

Court: Federal Circuit   |   Year: 2009   |   Read Full Case Breakdown →

Key Takeaway
The Federal Circuit held that separately diagnosed psychiatric disorders may not receive separate disability ratings when the symptoms overlap because 38 C.F.R. § 4.14 prohibits compensating the same manifestations under multiple diagnoses. The court clarified that the critical inquiry is whether the symptomatology is duplicative or overlapping, not whether the disorders have different diagnoses or causes.
Summary
Amberman v. Shinseki is a major anti-pyramiding decision addressing when separately diagnosed psychiatric disabilities may receive separate ratings under VA’s rating schedule.

The veteran was service connected for:
• bipolar affective disorder,
• and PTSD.

Initially, VA assigned:
• a 70% rating for bipolar disorder,
• and a separate noncompensable rating for PTSD.

VA later determined this separate-rating structure constituted clear and unmistakable error (CUE) because the medical evidence did not distinguish symptom manifestations attributable to each psychiatric disorder. VA revised the decision and combined the conditions into a single psychiatric evaluation.

The veteran appealed, arguing:
• PTSD and bipolar disorder were distinct diagnoses,
• arose from different causes,
• and therefore required separate ratings.

The Federal Circuit rejected that argument and focused on the anti-pyramiding rule contained in 38 C.F.R. § 4.14.

The court explained that:
• veterans generally receive separate ratings for separate disabilities,
• but § 4.14 prohibits compensating the same manifestations under multiple diagnoses,
• because doing so improperly duplicates compensation for the same functional impairment.

The Federal Circuit relied heavily on Esteban v. Brown, emphasizing that:
• separate ratings are permissible only when symptomatology is distinct and non-overlapping.

The court clarified that the critical inquiry is:
• whether the symptoms overlap,
not:
• whether the diagnoses themselves are different.

Importantly, the Federal Circuit acknowledged that:

• PTSD and bipolar disorder could theoretically produce distinct manifestations supporting separate ratings,
• but the factual record in this case did not contain competent evidence distinguishing the manifestations attributable to each disorder.

The court also addressed CUE principles and rejected the argument that anti-pyramiding determinations can never constitute CUE because they involve evidentiary weighing. The court confirmed that legal or factual misapplication of § 4.14 may support CUE findings when based on the record existing at the time of the decision.

The Federal Circuit affirmed the Veterans Court and upheld VA’s determination that separate psychiatric ratings were impermissible under the facts presented.

Ascherl v. Brown — Duty to assist requires a thorough PTSD examination and development of relevant records

Court: CAVC   |   Year: 1993   |   Read Full Case Breakdown →

Key Takeaway
The Court vacated and remanded because the Board failed to satisfy its duty to assist on a PTSD claim, including by refusing a proper psychiatric examination and not adequately developing relevant records. It also stressed that PTSD is a distinct theory from schizophrenia and must be separately analyzed when reasonably raised.
Summary
The appellant served in Vietnam and had long-standing psychiatric diagnoses, including paranoid schizophrenia. After prior final denials of service connection for a nervous condition, he specifically sought service connection for PTSD and described in-service stressors and post-service symptoms. The Board reopened the claim based on new and material evidence, but then denied service connection and declined to order another psychiatric examination, reasoning that PTSD had never been diagnosed and schizophrenia had been consistently shown instead. The Court held that the Board had not adequately developed the PTSD theory and had failed to satisfy the statutory duty to assist under 38 U.S.C. § 5107(a).

The Court explained that once a veteran presents a well-grounded claim, VA must assist by developing the facts pertinent to the claim, including obtaining a thorough and contemporaneous examination that considers prior treatment records. Because the record was inadequate to determine whether the veteran had PTSD and, if so, whether it was related to service, remand was required. The Court also emphasized that PTSD is evaluated under different diagnostic criteria than schizophrenia and that reasonably raised issues must be addressed. On remand, the Board was instructed to seek relevant records, provide an adequate psychiatric examination, and address combat/stressor development as necessary, while also supplying adequate reasons or bases.

Mee v. Brown — remand for inadequate PTSD development and improper Board medical judgment

Court: CAVC   |   Year: 1993   |   Read Full Case Breakdown →

Key Takeaway
The Court vacated and remanded the Board’s denial of PTSD service connection because the record was inadequately developed, the Board relied on its own medical judgment, and the Board failed to make adequate stressor findings supported by reasons or bases.
Summary
The appellant sought service connection for PTSD based on several alleged Vietnam stressors, but the evidentiary record contained conflicting psychiatric diagnoses and incomplete corroboration of the claimed events. The Board denied the claim, reasoning that the symptoms did not establish PTSD and expressing skepticism about the existence of an adequate stressor. On appeal, the Court held that the factual record had been inadequately developed and therefore could not support affirmance or reversal on the merits.

The Court explained that the psychiatric evidence did not comply with 38 C.F.R. § 4.126 because the diagnoses did not adequately distinguish PTSD from other psychiatric conditions such as personality disorder and substance abuse. The Court also held that the Board appeared to have substituted its own medical judgment for independent medical evidence, contrary to Colvin. In addition, the Board failed to make a sufficiently supported finding on whether the claimed stressors were adequately demonstrated and credible, which prevented meaningful judicial review under Gilbert. The Court further rejected the Board’s apparent reliance on the lateness of the PTSD claim, noting that delayed onset is consistent with PTSD by definition.

The Court vacated the Board decision and remanded for further development, including a compliant psychological examination and proper readjudication. The case is important because it underscores that PTSD claims require careful factual development, explicit stressor findings, and competent medical evidence separating service-connected PTSD from other psychiatric pathology before denial is appropriate.

Menegassi v. Shinseki — Medical opinion evidence may corroborate an MST stressor

Court: Federal Circuit   |   Year: 2011   |   Read Full Case Breakdown →

Key Takeaway
The Federal Circuit held that, in PTSD claims based on personal assault or military sexual trauma (MST), a medical opinion may itself constitute credible supporting evidence that the assault occurred under 38 C.F.R. § 3.304(f)(5). The decision rejected the view that post-service medical opinions could not corroborate the occurrence of an in-service personal assault stressor.
Summary
The veteran sought service connection for PTSD based on an alleged in-service sexual assault. The Board denied the claim after concluding that the record lacked credible supporting evidence establishing that the assault occurred. The Veterans Court affirmed, relying in part on an interpretation that a medical opinion diagnosing PTSD based on a reported assault could not itself serve as corroborating evidence of the stressor.

The Federal Circuit reversed that interpretation. The court examined 38 C.F.R. § 3.304(f)(5), which governs PTSD claims based on personal assault. That regulation specifically recognizes that evidence from sources other than service records may corroborate the stressor and allows VA to submit evidence to a medical professional for interpretation regarding whether behavioral changes indicate that an assault occurred.

The Federal Circuit held that nothing in the regulation prohibits a medical opinion from serving as credible supporting evidence that the assault occurred. The court explained that medical professionals may evaluate behavioral changes, symptom patterns, and other evidence to determine whether the claimed assault is consistent with the veteran’s presentation. Accordingly, the Veterans Court erred in adopting a categorical rule excluding such opinions from consideration as corroborating evidence.

The case was remanded for further adjudication under the proper legal standard.

Patton v. West — Personal-assault PTSD claims require special evidentiary development and reasons-or-bases review

Court: CAVC   |   Year: 1999   |   Read Full Case Breakdown →

Key Takeaway
The Court held that PTSD claims based on personal assault require special evidentiary development procedures because many assaults are not officially reported during service. The decision emphasized that VA must carefully evaluate alternative sources of evidence, behavioral changes, and lay testimony when developing and adjudicating military sexual trauma (MST) and personal-assault PTSD claims.
Summary
The veteran sought service connection for PTSD based on alleged in-service personal assaults. The Board denied the claim after finding insufficient corroboration of the stressors. On appeal, the Court examined VA’s special evidentiary procedures applicable to PTSD claims involving personal assault.

The Court recognized that victims of sexual assault and personal trauma often do not formally report the incidents during military service. Because of this reality, the Court explained that traditional service-record verification standards may be inadequate in MST-type claims. The Court emphasized that VA procedural guidance specifically instructed adjudicators to seek alternative forms of corroborating evidence, including behavioral changes, deterioration in work performance, requests for transfer, substance abuse, depression, anxiety, or other indirect indicators of trauma.

The Court found that the Board failed to properly apply these specialized development procedures and improperly treated the absence of official documentation as substantive negative evidence. The Court also emphasized the importance of obtaining medical interpretation of behavioral changes and alternative evidence in MST claims.

Patton became one of the foundational cases governing development and adjudication of PTSD claims based on personal assault and military sexual trauma.

Stone v. Nicholson — § 1154(b) does not relax proof of combat status

Court: Federal Circuit   |   Year: 2007   |   Read Full Case Breakdown →

Key Takeaway
The Federal Circuit held that § 1154(b) does not ease the veteran’s burden of proving combat status; it applies only after combat with the enemy has been established. The court also found no regulatory error in the Board’s treatment of corroborating evidence for the claimed PTSD stressors.
Summary
Donald W. Stone appealed the Veterans Court’s affirmance of the Board’s denial of service connection for PTSD. The Federal Circuit reviewed only issues of statutory and regulatory interpretation, not the underlying factual finding that Stone did not establish combat status. The court held that 38 U.S.C. § 1154(b) does not provide a relaxed standard for proving that a veteran engaged in combat with the enemy; rather, the statute applies only once combat status is established. Because Stone had not shown he was a combat veteran, the Veterans Court correctly concluded that § 1154(b) did not govern his proof of service incurrence. The court also rejected Stone’s challenge to 38 C.F.R. § 3.304(f), explaining that the Board had considered his lay statements but permissibly found no credible corroboration of the alleged stressors. The decision reinforces that combat status and stressor corroboration are distinct issues, and that lay statements alone do not automatically establish a PTSD stressor absent the conditions required by the regulation.

Wiggins v. Collins — Mandamus denied; section 7112(b) does not itself require expedited docket advancement for MST claims

Court: CAVC   |   Year: 2025   |   Read Full Case Breakdown →

Key Takeaway
The Court held that section 7112(b) does not itself require expedited adjudication of MST appeals or automatic advancement on the Board docket. MST may inform a TRAC delay analysis, but mandamus still requires a clear and indisputable right and no adequate alternative remedy.
Summary
In this petition for extraordinary relief, the veteran sought an order compelling the Board to adjudicate her appeal within 30 days. She argued that because her claims involved military sexual trauma, 38 U.S.C. § 7112(b) required expedited treatment and supported mandamus relief. The Court rejected that interpretation. Reading section 7112(b) together with section 7107, the Court held that the statute requires the Board to promptly determine whether an NOD is a covered MST case, but it does not create a separate timetable for merits adjudication or automatically override the Board’s regular docket-order rule. The Court treated MST as a relevant circumstance under the TRAC unreasonable-delay framework, but concluded that the petitioner had not shown a clear and indisputable right to relief, no adequate alternative means, or delay so unreasonable as to justify mandamus. The Court also emphasized that the Board had previously invited a renewed motion to advance on the docket with additional evidence, which undercut the lack-of-alternative-remedy showing. The dissent would have read section 7112(b) as requiring expedited treatment of MST claims and would have granted the petition to that extent.

Wood v. Derwinski — Combat stressor corroboration and PTSD service connection

Court: CAVC   |   Year: 1991   |   Read Full Case Breakdown →

Key Takeaway
The Court denied reconsideration and held that the combat-related PTSD corroboration rule did not apply because the record did not show the veteran was engaged in combat with the enemy when the alleged stressors occurred.
Summary
In this reconsideration order, the Court addressed its prior affirmance of the Board’s denial of PTSD compensation. The appellant argued that 38 U.S.C. § 354(b) and implementing regulations eliminated the need for independent corroboration of a stressor where a veteran engaged in combat with the enemy and the stressor was related to that combat. The Court rejected that argument on the record before it, explaining that the statutory relaxation applies only when both combat participation and a combat-related stressor are shown. The opinion concluded that the record did not demonstrate combat service when the alleged stressors occurred, noting that one event was unrelated to combat and another was merely an aftermath scene the veteran encountered unofficially. Judge Steinberg dissented, arguing that a new M21-1 provision concerning PTSD stressor development should have been applied and that the matter should have been remanded for agency factfinding rather than resolved by the Court.