Sleep Apnea Claimed Secondary to Residuals of traumatic brain injury

Sleep Apnea (VA diagnostic code 6847) is sometimes claimed as secondary to service-connected Residuals of traumatic brain injury (code 8045) under 38 CFR 3.310. This page reports what published Board of Veterans' Appeals decisions on that pairing show. It is an encyclopedic reference, not a forecast.

Last updated: July 2026 · Educational use only. This page catalogs how published Board decisions handled this claim pairing. It is not legal advice, not a recommendation about your claim, and it does not predict an outcome. Verify current rules at VA.gov or eCFR.

The Numbers, from 1.9 Million Appeals

In the Board's published decisions, sleep apnea (DC 6847) claimed as secondary to residuals of traumatic brain injury (DC 8045) is a small but documented claim pool that wins clearly more often than it loses once it reaches a merits decision.

27%
Granted, of all 164 issues. Among decided issues only (granted or denied), 60% were granted.
164
published Board issues arguing sleep apnea secondary to residuals of traumatic brain injury
55%
of all issues were remanded, sent back for more development

How those 164 issues came out

Descriptive Board data. Correlation is not predictive. This shows how similar filings were decided in the published record, not the odds for any individual claim.
Granted: 44 Remanded: 90 Denied: 29 Other: 1

Counts from RateMyVSO's index of published BVA decisions, as of July 2026. "Granted 60%" counts only issues decided up-or-down: granted ÷ (granted + denied). A remand is not a loss; it means the Board needed more evidence before deciding. Secondary service connection rule: 38 CFR § 3.310.

Quick Checklist Before You File

  • Service connection already in place for Residuals of traumatic brain injury, and a current medical diagnosis of sleep apnea.
  • Diagnostic testing, imaging, or clinical records documenting the sleep apnea, whatever your provider used to diagnose and track it.
  • A nexus opinion, whenever possible from a doctor familiar with sleep apnea, stating it is at least as likely as not caused or aggravated by the residuals of traumatic brain injury, and naming the mechanism rather than just the conclusion.
  • Lay statements: spouse, family, friends, or battle buddies describing what they've witnessed or noticed.
  • Your STRs and any VA opinions already in the file on either condition. If a VA opinion already went against you, your submitted opinion or statement should address its specific reasoning.

For the mechanics of filing itself, see the Standard Claim Guide and the Fully Developed Claim Guide.

Why sleep apnea is claimed secondary to residuals of traumatic brain injury

Documented mechanism
Traumatic brain injury can disrupt the brain's sleep-regulating and breathing-control centers, and sleep-disordered breathing is a recognized consequence of significant head injury. TBI can directly cause central sleep apnea, in which the brainstem intermittently fails to signal the body to breathe, and it can also disturb the broader sleep-wake cycle and, through weight gain or reduced activity during recovery, contribute to or worsen obstructive sleep apnea. Where a service-connected TBI worsens existing sleep apnea, VA recognizes aggravation as a separate basis for secondary service connection under 38 CFR 3.310(b). Because the strength of the connection depends on which type of apnea is diagnosed, the specifics matter. Whether it applies to a particular veteran depends on that veteran's own records, including the severity of the TBI, a formal sleep study identifying the type of apnea, and a specialist's opinion.
This rationale is generated from the data for this specific pairing, not hand-written per page. The grant and denial figures above come only from the decision data, never from the rationale text.

Whether that medical link exists in any one case is a medical question decided on that case's own evidence (the nexus).

What a secondary claim on this pairing needs

Under 38 CFR 3.310 a secondary claim turns on three elements:

  • A current diagnosis: a medical diagnosis of sleep apnea (the secondary).
  • A service-connected primary: Residuals of traumatic brain injury, already service-connected (the primary). A 0% primary still counts.
  • A medical nexus: a medical opinion linking the sleep apnea to the residuals of traumatic brain injury, showing the primary caused or aggravated it.

See the Secondary Claim guide for the caused-versus-aggravated split, and the Nexus Letter guide for what makes the medical opinion strong.

Do's and Don'ts

Do
  • Get service connection established for Residuals of traumatic brain injury and a current diagnosis of sleep apnea documented before you file.
  • Get a nexus opinion that names the specific mechanism connecting the sleep apnea to the residuals of traumatic brain injury and cites supporting literature, not just a conclusion.
  • Include diagnostic testing, imaging, or clinical records for the sleep apnea.
  • Get a spouse, family, friend, or buddy statement describing what they've witnessed, lay evidence the Board credits directly.
  • If a VA opinion already exists in your file, have your own opinion rebut it point by point rather than simply asserting the opposite conclusion.
Don't
  • Don't accept "the study shows an association, not causation" as the final word, exact etiology and scientific consensus are not the legal standard (Alemany v. Brown, 9 Vet. App. 518 (1996); Wise v. Shinseki, 26 Vet. App. 517 (2014)).
  • Don't treat a VA examiner's "unable to determine without speculating" as evidence against you, an unexplained non-opinion is not evidence at all.
  • Don't let a service-to-diagnosis time gap sink your secondary claim, that gap matters for a direct claim, not this one.
  • Don't assume you need an expensive specialist, a treating provider's notes plus published literature have carried grants before.
  • Don't leave a negative opinion unchallenged if it never engaged your submitted literature or lay statements, the Board has downgraded exactly that kind of opinion to minimal weight.

The Claims Process, Step by Step

A secondary claim moves through the same pipeline as any other. Understanding who does what helps you know who to contact and what to expect.

  1. You file the claim, naming Residuals of traumatic brain injury as the service-connected primary and sleep apnea as secondary. Directly with VA, through VA.gov, or with an accredited representative's help.
  2. VA assigns a Veteran Service Representative (VSR) to develop the claim: gather your service treatment records, VA and private medical records, and order a C&P exam if needed.
  3. The C&P exam is conducted, usually with the examiner asked to address the specific secondary theory (causation and aggravation both).
  4. The file goes to a Rating Veteran Service Representative (RVSR), the "rater," who weighs the medical evidence and decides service connection and, if granted, the rating percentage.
  5. VA issues the decision letter stating the outcome and the reasoning.
  6. If denied or under-rated, you choose an appeal lane, Supplemental Claim, Higher-Level Review, or a Board appeal, covered below.

Who's who: VSO vs. VSR vs. Rater vs. C&P Examiner

Your VSO

An accredited representative, agent, or attorney. Not a VA employee. Helps prepare and file, and can represent you on appeal. Has no authority to decide your claim.

VSR

VA staff who develops the claim: gathers records and schedules the exam. Does not decide the rating.

Rater (RVSR)

VA staff who reviews the complete file and makes the actual decision on service connection and percentage.

C&P Examiner

Conducts the exam and, where asked, gives a nexus opinion. Does not decide the claim, but the opinion's reasoning and legal framing carry real weight.

For the full walkthrough, see Inside Your Claim and Claim Stages.

DBQs and Your C&P Exam

A Disability Benefits Questionnaire (DBQ) is the standardized form the examiner completes for your condition. See the DBQ Guide for how these forms work and whether a private DBQ from your own doctor can be submitted instead of relying solely on a VA exam. For what to expect and how to prepare, see the C&P Exam Prep Guide, and be specific about how your sleep apnea symptoms relate to your residuals of traumatic brain injury timeline, treatment, and any aggravation, that is the detail a nexus opinion relies on.

Reading Your Decision Letter, and What to Do If Denied

Your decision letter has a narrative "reasons and bases" section and a codesheet with the rating and effective date. See the Reading Your Decision Letter Guide or use the Letter Interpreter tool to decode your own letter. If denied, you have three main lanes:

  • Supplemental Claim: refile with new and relevant evidence, such as a nexus opinion that addresses the mechanism and the specific VA rationale you're rebutting. See Supplemental Claim Guide.
  • Higher-Level Review (HLR): a senior reviewer looks at the same evidence again, useful if the denial rested on a legal error. See HLR Guide.
  • Board Appeal: your case goes to a Veterans Law Judge, with a direct review, evidence, or hearing docket. See Board Appeal Guide.

Not sure which lane fits? See the Appeals decision guide for a side-by-side comparison.

After You Win: Maintaining Your Rating

Keep documentation of ongoing treatment, follow-up evaluations, and any updated diagnostic testing for your sleep apnea on file, this protects you if VA schedules a future reexamination. See Protect Your Rating for when a rating becomes protected and Future Reexaminations for what triggers one. If your sleep apnea worsens, see the Rating Increase Guide.

Frequently Asked Questions

Does Residuals of traumatic brain injury have to be highly rated to support a sleep apnea secondary claim?

No. 38 CFR 3.310 looks at whether the service-connected Residuals of traumatic brain injury caused or aggravated the sleep apnea, not at how severe the Residuals of traumatic brain injury rating is. Even a 0% service-connected primary can anchor a secondary claim.

What do the percentages on this page mean?

They are the historical outcomes of 164 published Board decisions on this exact pairing: 27% granted, 18% denied, 55% remanded. They describe decided appeals already on record. They do not predict what would happen in any individual case.

RateMyVSO. Educational resource. Not affiliated with the U.S. Department of Veterans Affairs. Not legal advice. All RateMyVSO tools are free. Find a VSO representative for personalized guidance.