Secondary service connection
Conditions secondary to hearing loss
Veterans with service-connected hearing loss often claim other conditions as caused or worsened by it. This page lists those conditions, what VA needs to grant them, and how they fared when veterans appealed to the Board of Veterans' Appeals.
What VA needs to grant a secondary claim
Secondary service connection means VA disability benefits for a condition caused or made worse by a disability that is already service connected (38 CFR 3.310). The claim needs three things:
- A current diagnosis of the secondary condition.
- Hearing loss is already service connected.
- Medical evidence linking them (a nexus opinion): the secondary condition was caused by hearing loss (3.310(a)), or was made worse beyond its natural progress by it (aggravation, 3.310(b)).
VA's procedures for these claims are in M21-1 V.ii.2.D. When the evidence for and against is about even, VA must decide in the veteran's favor (38 CFR 3.102).
Conditions claimed secondary to hearing loss
Conditions the Board decided at least 300 times as secondary to this disability, highest appeal grant rate first. Open one for the evidence and reasons behind the decisions.
Hearing loss claimed secondary to other conditions
The other direction: hearing loss claimed as caused or worsened by a different service-connected disability.
All Board decisions on hearing loss, direct and secondary: Hearing loss grant rates.
Tinnitus secondary to hearing loss wins far more often than the reverse
At the Board, tinnitus claimed secondary to hearing loss was granted in 65.6% of 1,456 decisions, while hearing loss claimed secondary to tinnitus was granted in only 13.5%.
Tinnitus secondary to hearing loss vs primary connection
Hearing loss across all theories was granted in 20.5% of 91,802 decisions and denied in 44.8%. The reverse pairing mostly ends in remand, with 67.8% of those issues sent back. When the Board reached the merits, it granted tinnitus secondary to hearing loss in 89.9%, against 41.9% for the reverse. The most cited tinnitus grant reason was causation by the service-connected disability, in 212 decisions.
Tinnitus secondary to hearing loss
Hearing loss secondary to tinnitus
Hearing loss, all theories
Share of Board decisions by outcome. Associations only.
Service connection for noise exposure and the C&P exam
For hearing loss overall, conceded in-service noise exposure was the top grant reason, named in 2,898 decisions. Combat service appeared in 7,963 decisions, granted at 47.6% versus 29.7% without it. A favorable VA exam went with a 47.7% grant rate, against 28.5% without one. A negative VA examiner opinion was cited in 3,641 denials, behind no current diagnosis at 4,002. The data does not show why these factors line up with outcomes.
Buddy statements and lay evidence impact
Buddy statements appeared in 2,205 hearing loss decisions, granted at 44.4% versus 31.1% without. General lay statements were far more common, in 77,051 decisions, and showed almost no gap: 31.5% with versus 30.8% without. For hearing loss secondary to tinnitus, decisions with lay statements were granted at 37.4% versus 78.6% without. The data does not show why that gap runs the other way.
Buddy statement
Lay statement
Combat service
Favorable VA exam
Positive nexus opinion
Merits decisions only. The data does not show that any evidence type caused a grant.
Rating schedule and appeals for underrated claims
The Board decided 32,889 hearing loss rating issues, granting 9.7% and denying 58.6%. Criteria for a higher rating not met was the top denial reason, in 7,160 decisions. Under DC 6100, the Board granted 7.6% of 5,245 issues on the merits. Across all hearing loss rating grants, ratings of 10 percent were the largest share at 33.0%, while 100 percent ratings made up 4.5%.
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Ratings assigned in Board rating grants on hearing loss issues; may include ratings under codes other than DC 6100.
Figures from the research data as of Oct 15, 2026. Every number is computed from the data, which is extracted by AI from public decisions and can contain errors.
Rules that apply to secondary claims
- 38 CFR 3.310
Secondary service connection and aggravation
Read it in VA Law Explorer - M21-1 V.ii.2.D
Secondary service connection and aggravation of non-service-connected disabilities
Read it in VA Law Explorer - 38 CFR 3.102
Reasonable doubt (benefit of the doubt)
Read it in VA Law Explorer - 38 CFR 4.85
Evaluation of hearing impairment
Read it in VA Law Explorer - 38 CFR 4.87 · DC 6100
Schedule of ratings: ear
Read it in VA Law Explorer - 38 CFR 3.385
Disability due to impaired hearing
Read it in VA Law Explorer - M21-1 V.iii.2.B.1
Service connection for hearing loss and tinnitus, incl. Guard and Reserve duty
Read it in VA Law Explorer - M21-1 V.iii.2.B.2
Evaluating hearing impairment: definition, test methods, exceptional patterns
Read it in VA Law Explorer
Research your secondary case
Narrow by year, judge, evidence or secondary condition, read the decisions, and export a research memo.
Where this data comes from
- Claim
- Regional office decides
- Veteran appeals
- Board decides
- Granted · Denied · Remanded: back to the regional office
Board of Veterans' Appeals decisions show how VA's highest review body applies 38 CFR and weighs evidence on contested claims.
Each one is an appeal: a regional office decided the claim first, and the veteran appealed. So these rates describe the Board, not a veteran's odds at the regional office, where most claims are decided and whose decisions are not public.
More on what Board decisions can and cannot tell you