Raven Nexus condition guide
Depression nexus letter: what the Board looked for
A nexus opinion may matter when service connection is disputed. It may not be the missing evidence when a presumption applies, service connection is already established, or the dispute is only about rating severity. This page focuses on in-service onset.
Board evidence
What the Board looked for: Depression
1,139 condition records across 513 decisions were assigned to this generated theory cohort.
- All decided records in this theory cohort47.7% (n = 1,139 condition records)
- Opinion rated adequate70% (n = 337 condition records)
- Opinion rated weak4.5% (n = 201 condition records)
- Opinion rated strong96.5% (n = 200 condition records)
- No nexus opinion identified3.6% (n = 112 condition records)
- VA examiner47.7% (n = 596 condition records)
- Private independent examiner80.5% (n = 133 condition records)
Source: Claim Raven generated Board analysis, 2026-09-03, from 1,139 condition records across 513 distinct decisions. Corpus decisions run through 2025.
These are historical associations in decided Board appeals, one condition in one decision per record. They are not your odds, and a Board appeal corpus is not representative of every VA claim. Board decisions are not precedential.
What this theory has to address
Depressive symptoms first documented during active duty or within one year of separation.
- In-service mental health treatment records
- Current depression diagnosis
- Nexus opinion or continuity of symptom evidence
Primary rule: 38 CFR 3.303.
Where the opinion can break down
The generated Board analysis most often identified these issues in this cohort:
- No rationale308 condition records
- Conclusory opinion227 condition records
- Records not reviewed209 condition records
- Incomplete examination155 condition records
- Specialty did not fit the issue89 condition records
In the Board's words
It is highly unlikely that these all represent acute and unrelated episodes of depression; rather, it is much more likely than not that [the Veteran] developed a depressive disorder in service, which persisted thereafter with varying degrees of intensity, often exacerbated by psychosocial stressors
The private examiner opined that it was at least as likely as not that the Veteran's depression began during military service. However, the Board found the factual premise that the Veteran's depression began during active service is incorrect.
These excerpts show how the Board discussed individual opinions.
The medical literature
Supporting findings
The abstract describes depression level assessed with the Beck Depression Inventory among active duty military personnel in relation to sleep problems and coping strategies..
Chou Han-Wei, Tzeng Wen-Chii, Chou Yu-Ching, et al. Stress, Sleep and Depressive Symptoms in Active Duty Military Personnel. The American journal of the medical sciences. 2016. PMID 27524212. PubMed source.
The abstract describes depressive symptom trajectories tracked from before deployment through the years following deployment in military personnel, linking patterns of depression onset and persistence to combat deployment, early trauma, and posttraumatic stress disorder symptoms.
Plas Xandra, Bruinsma Bastiaan, van Lissa Caspar J, et al. Long-term trajectories of depressive symptoms in deployed military personnel: A 10-year prospective study. Journal of affective disorders. 2024. PMID 38537760. PubMed source.
The abstract describes an association between deployment to Iraq or Afghanistan and diagnosis of major depression among active duty military personnel using health record data collected during service..
Shen Yu-Chu, Arkes Jeremy, Williams Thomas V. Effects of Iraq/Afghanistan deployments on major depression and substance use disorder: analysis of active duty personnel in the US military. American journal of public health. 2012. PMID 22390609. PubMed source.
The abstract describes depressive symptoms arising in active duty military personnel following hazing exposure, occurring alongside anger and linked to suicidal ideation during service.
Kim JaeYop, Kim JoonBeom, Park SooKyung. Military hazing and suicidal ideation among active duty military personnel: Serial mediation effects of anger and depressive symptoms. Journal of affective disorders. 2019. PMID 31158719. PubMed source.
Limits and contrary findings
No verified limiting study was found among the reviewed PubMed candidates. That is a search result, not proof that no contrary literature exists.
Source: F2 PubMed citation set verified 2026-09-03. Each sentence is a paraphrase of the abstract and must be applied to the individual facts by a clinician.
Readiness questions for this theory
- Is the current diagnosis stated in a dated medical record?
- Is the in-service event, exposure, symptom, or diagnosis documented?
- Do the records explain the timeline, including any treatment gap?
- Is there a prior VA opinion whose reasoning needs to be addressed?
- Could a presumptive rule make a separate nexus opinion unnecessary?
A qualified clinician decides whether the medical connection can be stated and how contrary facts affect the opinion.
Check before building a draft
The readiness check identifies facts and records to bring to a clinician. It does not create medical evidence and does not decide whether the clinician can support the connection.
Your clinician decides what they can say and signs only what they believe. Raven Nexus never files anything and never contacts VA.
Claim Raven is not legal or medical advice and is not affiliated with VA.