VA Case Citations for Sleep Apnea Secondary to Tinnitus

You can get VA disability compensation for sleep apnea secondary to tinnitus, and the Board of Veterans’ Appeals has granted these claims in multiple decisions. The legal footing is 38 C.F.R. § 3.310, which pays benefits for any disability caused or worsened by a condition already connected to service.¹ What decides these claims is not the theory but the evidence: a confirmed diagnosis, a nexus letter that explains the medical mechanism, and records that show the chain from one condition to the other.

How the Secondary Claim Works

Secondary service connection means you do not have to tie sleep apnea directly to military service. You only have to tie it to your service-connected tinnitus. Tinnitus is the primary disability. Sleep apnea is the secondary condition.

There are two theories to choose from, and the difference matters when you build your case. Causation says tinnitus caused the sleep apnea. Aggravation says tinnitus made pre-existing sleep apnea worse. Aggravation claims need a baseline, because the rating can reflect only the worsening portion, and that means medical evidence of how severe the sleep apnea was before tinnitus started affecting it.¹

The evidentiary bar is lower than most claimants think. Under 38 U.S.C. § 5107, when positive and negative evidence sit roughly in balance, VA resolves the tie in your favor.² That is why the phrase you want in your nexus letter is “at least as likely as not.” It maps directly onto this legal standard.

The Two Medical Theories the Board Accepts

The Board has credited two mechanisms linking tinnitus to sleep apnea. A nexus opinion that explains both is harder to dismiss than one relying on a single pathway.

Direct REM Sleep Disruption

The shorter theory is that tinnitus fragments sleep architecture, especially REM sleep, and sleep apnea occurs during the muscle relaxation of REM. In a 2025 Board decision granting service connection, the Board credited a private opinion explaining this mechanism and citing research that veterans with tinnitus develop sleep apnea at roughly ten times the rate of the general population.³ What made the opinion persuasive was not the conclusion but the reasoning: the clinician had reviewed the full record, cited specific literature, and walked through the mechanism step by step.

The Intermediate Step Through Weight Gain

The longer chain runs like this. Tinnitus causes chronic sleep disturbance and psychological distress. That leads to prescriptions for antidepressants or anti-anxiety medications. Those medications cause weight gain. Weight gain leads to or worsens obstructive sleep apnea. Several SSRIs commonly prescribed for tinnitus-related symptoms, including paroxetine, sertraline, and citalopram, list weight gain as a known side effect.

VA’s own Office of General Counsel has recognized that obesity can serve as an intermediate step in a secondary service connection analysis under § 3.310(a), even though obesity is not itself a ratable disability.⁴ If your records show tinnitus complaints, then a prescription for one of these medications, then documented weight gain, then a sleep apnea diagnosis, you have the chain the theory requires.

The Case Law That Shapes These Claims

Individual Board decisions are not binding precedent, but they show the analytical patterns adjudicators actually use.

BVA Citation Nr. A25015035 (2025)

This is the clearest recent example of a grant. The Board relied on a private clinician who explained REM disruption in detail and pointed to research on sleep apnea prevalence among veterans with tinnitus.³ The takeaway is that a nexus opinion citing specific literature and explaining mechanism outperforms a bare conclusion every time.

VAOPGCPREC 1-2017

This precedential General Counsel opinion is the doctrinal basis for the obesity intermediate step framework.⁴ Under it, VA asks whether the service-connected disability caused the weight gain and whether the sleep apnea would not have occurred without that obesity.

Walsh v. Secretary of Veterans Affairs (2020)

The Court of Appeals for Veterans Claims held in Walsh that the obesity intermediate step analysis must include aggravation, not just direct causation.⁵ That opens the door to arguing that tinnitus aggravated existing weight problems, and that worsened obesity in turn aggravated the sleep apnea.

Spicer v. McDonough (2023)

The Federal Circuit struck down the “substantial factor” language from the original VAOPGCPREC 1-2017 framework. After Spicer, the aggravation test is straightforward: but for the service-connected disability, the increase in severity of the non-service-connected condition would not have occurred.⁵ The old two-part test had an extra hurdle that Spicer removed, which generally helps veterans.

Building Your Evidence

Raters are not medical experts. They follow a checklist. Your job is to fill every box.

Sleep Study Diagnosis

A polysomnography-confirmed diagnosis is not optional. VA’s Disability Benefits Questionnaire for sleep apnea requires the examiner to confirm the diagnosis through sleep study results and to record the date of the study.⁶ Get the sleep study before you file. Symptoms alone will not do it.

The Nexus Letter

Claims live or die here. A nexus letter is a written opinion from a qualified provider stating that your sleep apnea is connected to your service-connected tinnitus. The letter must use “at least as likely as not.” Weaker phrasing like “possibly” or “could be related” falls below the standard. The provider should confirm they reviewed your records and give a full rationale, not just a conclusion.

Strong nexus letters name the pathway. Whether that is direct REM disruption, the intermediate step through medication-induced weight gain, or both, the letter should walk through the mechanism and cite supporting literature. That is what won in Citation Nr. A25015035.³

Records That Tell the Same Story

Your medical records should match the theory your nexus letter argues. For the intermediate step theory, the records need to show tinnitus complaints, then treatment for anxiety or depression, then prescriptions known to cause weight gain, then documented weight increase, then the sleep apnea diagnosis. Gaps in the chain are what raters use to deny. For direct REM disruption, records of sleep disturbance that track with tinnitus severity are important corroboration.

Lay Statements

A spouse or family member can describe what medical records do not capture: heavy snoring that appeared over time, gasping during sleep, daytime exhaustion that got worse as tinnitus intensified. Submit these on VA Form 21-10210, the lay or buddy statement form.⁷ Stick to observable facts and timelines. Leave medical conclusions to the clinician.

The C&P Exam

After you file, VA will likely schedule a Compensation and Pension exam. The examiner uses the Sleep Apnea DBQ, reviews your history and sleep study, and evaluates whether you require a CPAP or other breathing device.⁶ For a secondary claim, the examiner may also be asked whether the sleep apnea is connected to tinnitus.

This is where your private nexus letter earns its keep. If the C&P examiner writes a negative opinion, a well-reasoned private opinion gives the rater and, later, the Board a competing view to weigh. The Board has repeatedly found detailed private opinions more persuasive than boilerplate C&P conclusions. Missing the exam can lead to outright denial, so treat it as mandatory.

Filing the Claim

Before submitting anything else, file an intent to file on VA Form 21-0966. That locks in the earliest possible effective date for retroactive payments, and you then have a year to submit the formal claim.⁸ Filing online at VA.gov creates the intent to file automatically, so a separate paper form is not needed.⁹

The formal application is VA Form 21-526EZ.¹⁰ Identify sleep apnea as a secondary condition and name tinnitus as the primary service-connected disability. Attach the nexus letter, sleep study, medical records, and lay statements. If you need to add a personal timeline or narrative, use VA Form 21-4138 as a supplement.¹¹

Ratings and What They Pay

Sleep apnea is rated under Diagnostic Code 6847 based on symptom severity and treatment requirements:

0 percent: asymptomatic with documented sleep-disordered breathing.
30 percent: persistent daytime hypersomnolence.
50 percent: requires use of a breathing assistance device such as a CPAP.
100 percent: chronic respiratory failure with carbon dioxide retention, cor pulmonale, or requires a tracheostomy.

¹²

Most veterans with a confirmed diagnosis and a CPAP land at 50 percent, which pays $1,132.90 per month in 2026 for a single veteran with no dependents. A 30 percent rating pays $552.47.¹³ If you already have other ratings, sleep apnea combines with them using VA’s combined ratings table, which is not straight addition.¹⁴

VA has proposed replacing this schedule with one that rates sleep apnea by treatment response rather than CPAP use. Under the proposal, a fully controlled case on CPAP could drop to 0 percent, and the highest ratings would be reserved for cases where treatment fails. As of early 2026 the change has not been finalized, no implementation date has been set, and veterans currently receiving compensation would not face automatic reductions under the proposed rule.

If Your Claim Is Denied

Denials for these claims usually trace to one of four problems: a missing or weak nexus opinion, no sleep study, a missed C&P exam, or gaps in the causal chain. The reason for the denial tells you which appeal lane fits. All three lanes must be filed within one year of the decision.

Supplemental Claim (VA Form 20-0995): use this when you have new and relevant evidence, such as a stronger nexus letter that addresses the specific denial reason.
Higher-Level Review (VA Form 20-0996): use this when the rater made an error on the existing evidence. No new evidence is allowed.
Board of Veterans’ Appeals (VA Form 10182): a Veterans Law Judge reviews the case, and you can choose whether to submit new evidence or request a hearing.

If the denial rested on a negative C&P opinion, a supplemental claim with a new private nexus letter that directly rebuts the examiner’s reasoning is often the strongest move. The Board has overturned denials where a private opinion offered a more detailed rationale than the VA examiner did.

1
eCFR. 38 CFR 3.310 – Disabilities That Are Proximately Due to, or Aggravated by, Service-Connected Disease or Injury
2
GovInfo. 38 USC 5107 – Claimant Responsibility and Benefit of the Doubt
3
Department of Veterans Affairs. BVA Decision Citation Nr A25015035
4
Department of Veterans Affairs. VAOPGCPREC 1-2017
5
Board of Veterans’ Appeals. BVA Decision – Entitlement to Service Connection for Obstructive Sleep Apnea – Remand Order
6
Veterans Benefits Administration. Sleep Apnea Disability Benefits Questionnaire
7
U.S. Department of Veterans Affairs. Submit a Lay Witness Statement to Support a VA Claim
8
Veterans Affairs. Your Intent to File a VA Claim
9
Veterans Affairs. About VA Form 21-0966
10
U.S. Department of Veterans Affairs. File for Disability Compensation With VA Form 21-526EZ
11
U.S. Department of Veterans Affairs. Supporting Forms for VA Claims – Section: Submit a Statement to Support a Claim (VA Form 21-4138)
12
eCFR. 38 CFR 4.97 – Schedule of Ratings, Respiratory System
13
U.S. Army. 2026 VA Disability Rates and Pay Charts
14
U.S. Department of Veterans Affairs. About Disability Ratings