Original research
The Private-Opinion Edge
A private medical opinion has always helped a service-connection claim at the Board. But across the highest-volume conditions, its edge has nearly tripled in thirty years, from a 16.1-point advantage in the 1990s to 43.5 points today.
The gap has widened decade by decade
Grouping decisions on the 30 most-appealed conditions by decade, and comparing those where the file held a private medical opinion against those with only a VA opinion or none, both grant rates rose over time, but the ones with a private opinion rose far faster:
| Decade | With private opinion | Without | Edge (points) |
|---|---|---|---|
| 1992-1999 | 31.5% (6,222) | 15.4% (44,491) | +16.1 |
| 2000-2009 | 39.1% (17,925) | 16.4% (100,189) | +22.7 |
| 2010-2018 | 71.3% (31,524) | 29.6% (163,658) | +41.7 |
| 2019-2026 | 81.1% (55,421) | 37.6% (221,143) | +43.5 |
The trend holds across conditions
It is not one condition driving the pattern. Here is the grant rate with a private opinion, by decade, for the twelve most-appealed conditions, each climbs:
| Condition | 1992-1999 | 2000-2009 | 2010-2018 | 2019-2026 |
|---|---|---|---|---|
| Hearing loss | 40.3% | 48.9% | 75.7% | 73.2% |
| Posttraumatic stress disorder | 32.3% | 43% | 72.8% | 81.9% |
| Tinnitus, recurrent | 53.8% | 54.3% | 87.9% | 90.6% |
| Degenerative arthritis, other than post-traumatic | 30.5% | 36.1% | 70.6% | 81.6% |
| Lumbosacral or cervical strain | 26% | 31% | 65.7% | 80.7% |
| Hypertensive vascular disease | 23.4% | 38.8% | 59.4% | 80.8% |
| Sleep Apnea Syndromes | 13.3% | 48.9% | 81.8% | 88.7% |
| Intervertebral disc syndrome | 30.8% | 34.1% | 63.6% | 78.3% |
| Diabetes mellitus | 21.8% | 31.5% | 55.5% | 75.6% |
| Paralysis of sciatic nerve | 28.2% | 36.3% | 72.4% | 81.3% |
| Major depressive disorder | 34.8% | 35.9% | 77.9% | 85.2% |
| Arteriosclerotic heart disease | 21.2% | 32.5% | 55.6% | 69.5% |
Methodology
This report aggregates published decisions of the Board of Veterans' Appeals at the issue level, limited to service-connection issues on the 30 highest-volume diagnostic codes. A decision is counted as "with a private opinion" when the record identifies a private or non-VA medical opinion on the nexus question, and "without" when the only medical opinion was a VA examiner's or there was none. Grant rate is granted divided by granted-plus-denied. The private/no-private classification comes from the language of each decision. These figures describe the published record; they are not legal advice and do not predict the outcome of any individual claim. Data as of July 2026; figures refresh weekly.
Cite this research
RateMyVSO. (July 2026). The Private-Opinion Edge: How the Value of a Private Nexus Opinion at the Board of Veterans' Appeals Has Widened Over Three Decades. https://ratemyvso.net/dc/nexus-trend-report
Free to cite and link with attribution. Figures derived from published Board of Veterans' Appeals decisions.
Educational and encyclopedic only, not legal advice, and not a prediction of any individual claim. Figures describe patterns in published Board decisions. For help with a claim, find a VA-accredited representative.