Sleep apnea is one of the most filed VA disability conditions — and one of the most denied for missing evidence. The 50% rating is clear-cut if you have a CPAP prescription. The secondary path to PTSD, rhinitis, and GERD is well-established. This guide covers the whole map, veteran-to-veteran.
Sleep apnea is rated under 38 CFR 4.97, Diagnostic Code 6847 (Sleep Apnea Syndromes — obstructive, central, mixed). The rating scale is simpler than most VA conditions: there are only four levels, and the 50% threshold is the clearest trigger in the entire rating schedule. If a physician prescribes a breathing assistance device, the rating is 50%. Full stop.
Unlike most conditions where the rater exercises judgment about severity, sleep apnea under DC 6847 is largely objective. The prescription is the evidence. That said, the 30% rating for "persistent daytime hypersomnolence" is often missed — veterans with documented excessive daytime sleepiness but no CPAP yet should not default to 0%.
The full diagnostic code for Sleep Apnea Syndromes is at 38 CFR § 4.97. Sleep apnea is classified under respiratory conditions alongside asthma, bronchitis, and pulmonary conditions. The rating criteria below reflect the statutory language from the regulation as currently codified.
Important: "Breathing assistance device" in the rating language includes CPAP (Continuous Positive Airway Pressure), BiPAP (Bilevel Positive Airway Pressure), APAP (Auto-Adjusting PAP), and other prescribed devices. A prescription is required — purchasing a CPAP without a medical prescription does not qualify for the 50% rating.
| Rating | 38 CFR 4.97 DC 6847 Threshold | What This Means in Practice |
|---|---|---|
The VA does not automatically pull your CPAP prescription from outside records. Submit it as evidence with your VA Form 21-526EZ or Supplemental Claim. Include: the prescription date, the prescribing physician, and the device type (CPAP, BiPAP, etc.). If you're getting your CPAP through the VA, the records are already in your file — but confirm they're in your claims file, not just your medical file. These are different systems and a rater working from the claims file may not see VA medical records unless they're in evidence.
Direct service connection requires evidence that the sleep apnea began during or was caused by your military service. Sleep apnea is often undiagnosed during service because it occurs during sleep — servicemembers don't know they have it, and unit-level medical care rarely screens for it. Despite this, direct service connection is achievable with the right evidence.
1. In-service sleep complaints documented in service treatment records (STRs): VA sick call records, flight physical records, and medical evaluations sometimes document complaints of fatigue, excessive snoring, or difficulty sleeping. Even a note about "chronic fatigue" or "sleep complaints" in an STR can anchor a nexus argument. Request your complete STRs from the National Personnel Records Center if you don't have them.
2. Buddy statements (VA Form 21-10210): Servicemembers who shared a barracks, berthing space, or sleeping area with you during deployment or training can submit statements that they witnessed loud snoring, observed you stop breathing during sleep, or noticed you having trouble staying awake on duty. These lay witness statements are probative evidence of in-service onset even without a formal diagnosis. A buddy statement saying "I witnessed [veteran] stop breathing multiple times per night in our shared quarters at [location] from [dates]" is exactly the kind of corroboration a C&P examiner needs.
3. Nexus letter from a physician: If your STRs don't mention sleep complaints, a physician can still opine that it is "at least as likely as not" that the sleep apnea had its onset during service based on your in-service risk factors (obesity related to military diet and stress, upper airway anatomy, hazardous exposures). The medical nexus opinion doesn't require certainty — the 50/50 standard is a low bar.
If you have service-connected PTSD, rhinitis, asthma, GERD, or a condition causing obesity, the secondary service connection path is usually easier than direct. You don't need to prove in-service onset — you only need to show the primary condition caused or aggravated the sleep apnea. If you have both a plausible direct path AND a secondary path, file both and let the evidence sort it out.
Most veterans win sleep apnea claims as secondary conditions under 38 CFR 3.310 — meaning the sleep apnea was caused or aggravated by a service-connected primary condition. You don't need to prove in-service onset. You only need: (1) a current sleep apnea diagnosis, (2) a service-connected primary condition, and (3) a nexus letter establishing the causal or aggravating relationship. Full guide to secondary claims: Secondary Conditions →
The legal standard is "at least as likely as not" — 50/50 is enough. The nexus letter must say: "It is my opinion that [Veteran's] obstructive sleep apnea is at least as likely as not caused [or aggravated] by the veteran's service-connected [PTSD / rhinitis / GERD / TBI]."
Beyond the magic words, the letter needs: (1) the physician's credentials and relationship to the veteran or their records; (2) review of the relevant records (sleep study, primary condition treatment records); (3) the specific medical rationale — the mechanism by which the primary condition causes or aggravates sleep apnea; and (4) citation of supporting medical literature if available. A letter that cites the specific pathophysiology (PTSD hyperarousal → disrupted sleep architecture → increased upper airway muscle tone loss → obstructive apnea) is far stronger than a vague association statement.
Your own treating physician — your VA sleep specialist, VA psychiatrist treating PTSD, or primary care provider — can write this letter. You don't need an expensive IME if your treating doctors are willing. Ask specifically: "I need a nexus letter for my VA claim stating whether my sleep apnea is at least as likely as not caused or aggravated by my service-connected [primary condition]."
Missing evidence is why sleep apnea claims get denied. The rating criteria are objective — the evidence either exists in your file or it doesn't. Build the file before you file the claim.
The sleep apnea C&P exam is more straightforward than most — the examiner is completing a Respiratory Conditions DBQ and looking for specific documentation to support each rating level. The key mistake veterans make is showing up without the physical evidence that unlocks the 50% rating. The examiner cannot grant what isn't in front of them.
Bring your CPAP machine. The examiner needs to confirm that a breathing assistance device has been prescribed and is in use. Bringing the physical machine demonstrates active use and gives the examiner something concrete to document. Some examiners will note "veteran presented with CPAP machine" directly in the DBQ — that language is gold for the 50% rating.
Bring your CPAP compliance report (or printout). Download the last 90 days of compliance data from your machine's companion app (ResMed myAir, Philips DreamMapper, etc.) or from the SD card. The data shows nightly usage hours and residual AHI. Consistent use and ongoing apnea events demonstrate the medical necessity of the device and the severity of the underlying condition.
Bring your sleep study results. Bring a printed copy of your polysomnography or home sleep test report. The examiner may have it in the claims file, but having your own copy prevents delays from file access issues.
What the examiner is documenting — be prepared to address each of these:
Full C&P preparation guide: C&P Exam Guide — what to expect and how to prepare →
Sleep apnea denials break down into a small number of fixable patterns. Most can be resolved with a Supplemental Claim and the right additional evidence. You have one year from the denial date to pick an appeal lane under AMA. Don't let it lapse.
HadIt.com has operated since 1997 — built by veterans, for veterans, with no financial stake in your claim outcome. Sleep apnea affects hundreds of thousands of veterans. The 50% CPAP threshold is one of the most straightforward ratings in the system, yet veterans are routinely denied for missing a single document. This guide exists to fix that.
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