1. What This Condition Is
Obstructive sleep apnea (OSA) is a condition in which the airway repeatedly collapses during sleep, causing the veteran to stop breathing dozens to hundreds of times per night. Each apnea episode disrupts sleep architecture and reduces blood oxygen levels. The cumulative effect is chronic sleep deprivation, daytime fatigue that can impair driving and work performance, cardiovascular strain, and worsened mental health symptoms. For veterans, OSA is commonly connected to service either directly (through weight gain, physical trauma, or TBI sustained in service) or as a secondary condition driven by PTSD, medications, or chronic pain. The VA rates OSA based on treatment requirements and functional severity. A CPAP prescription alone currently supports a 50% rating under DC 6847, making this one of the highest-value standalone claims a veteran can file.
2. VA Rating Criteria
Obstructive sleep apnea is rated under 38 CFR Part 4, § 4.97, Diagnostic Code 6847.
| Rating | Criteria |
|---|---|
| 0% | Asymptomatic sleep apnea with documented sleep disorder breathing |
| 30% | Persistent daytime hypersomnolence |
| 50% | Requires use of a breathing assistance device (CPAP, BiPAP, APAP, or similar) |
| 100% | Chronic respiratory failure with carbon dioxide retention or cor pulmonale; or requires tracheostomy |
The 50% rating for CPAP use is currently the most commonly assigned level for OSA claims. The VA does not require that the CPAP be prescribed by a VA provider or that you use it with perfect compliance. It requires that a breathing assistance device has been prescribed for the condition.
Important note on proposed regulatory changes: The VA has proposed revisions to DC 6847 that would shift the rating structure away from device use toward functional impairment, add a new 10% tier, and remove the automatic 50% rating for CPAP prescription. As of the date this page was written, those proposed changes have not been finalized. The criteria above remain current law. If you have not yet filed, file under the existing criteria now. Monitor va.gov and federalregister.gov for finalized rulemaking.
3. What to Expect at Your C&P Exam
The C&P examiner for sleep apnea will review your polysomnography (sleep study) results. The sleep study is the required diagnostic foundation. Without it, you cannot get a rating. The examiner will look at your Apnea-Hypopnea Index (AHI), which measures apnea events per hour, and your oxygen desaturation levels.
The examiner will ask whether you have been prescribed a CPAP, BiPAP, or APAP machine, whether you use it, and whether it controls your symptoms. They will also ask about daytime sleepiness, fatigue, cognitive effects, and whether your sleep condition affects your ability to work.
If you have a CPAP prescribed, bring documentation: the prescription, the device setup paperwork, and any compliance data your machine generates. Most CPAP machines log usage data via SD card or wireless transmission. If compliance data shows you use the machine regularly, bring that. If compliance data shows gaps, that does not eliminate the rating. The prescription itself is the trigger under current DC 6847 criteria.
Tell the examiner specifically how daytime fatigue affects your functioning. If you cannot drive safely after 2 PM, if you fall asleep at work, if brain fog limits your job performance, put that on the record. These functional effects support the claim picture and are relevant to secondary conditions like cognitive impairment.
4. Evidence You Need to Win
Sleep Study (Polysomnography). A formal polysomnography conducted in a sleep lab is the required diagnostic evidence for OSA. Home sleep testing (HST) is sometimes accepted but a full polysomnography is the gold standard. The study must document AHI and oxygen saturation levels confirming OSA. Get this study before you file. Do not wait for the VA to order one.
CPAP Prescription and Setup Documentation. If you have been prescribed a breathing assistance device, obtain a copy of the prescription and the equipment order. This is the single piece of evidence that supports the 50% rating under current DC 6847. If your VA provider prescribed the CPAP, it is already in your VA records. If a private provider prescribed it, submit the documentation with your claim.
Nexus Letter. A letter from a sleep medicine physician, pulmonologist, or primary care provider connecting your OSA to military service or to an existing service-connected condition. The letter must state "at least as likely as not" that the OSA was caused or aggravated by service (direct connection) or by a service-connected condition (secondary connection under 38 CFR § 3.310). It must review your records, describe your diagnosis, and provide clear rationale (Barr v. Nicholson, 21 Vet. App. 303 (2007)).
DBQ Form. The relevant VA examination form is the "Sleep Apnea" DBQ. If you obtain a private sleep medicine evaluation, ask the provider to complete this DBQ or write a letter addressing all of its elements, including AHI, oxygen saturation, treatment requirements, and functional impairment.
Service Connection Pathway Documentation. If filing direct service connection: service records documenting any in-service events linked to OSA onset (TBI, significant weight gain, upper airway trauma). If filing as secondary to PTSD: treatment records establishing the PTSD diagnosis and a nexus opinion linking PTSD to OSA. If filing as secondary to medications: documentation of the service-connected condition requiring the ototoxic or sedating medication and a physician opinion on the medication-OSA link.
Personal Statement. Describe how OSA and its treatment affect your daily life: daytime fatigue, cognitive difficulty, inability to drive safely, impact on work and relationships. Note whether CPAP has partially or fully controlled symptoms. Submit with VA Form 21-10210 or as a written statement with your 21-526EZ.
5. Secondary Conditions to Consider
PTSD (DC 9411) and OSA as a co-claim. The relationship between PTSD and sleep apnea runs in both directions. Veterans with PTSD are significantly more likely to develop OSA. If your PTSD predates your OSA diagnosis, file OSA as secondary to PTSD under 38 CFR § 3.310. A sleep medicine specialist can write the nexus.
Hypertension (DC 7101). OSA is a recognized independent risk factor for hypertension. Repeated nocturnal hypoxia drives sustained elevation in blood pressure. If you developed or worsened hypertension after OSA onset, secondary service connection is medically supportable with a cardiologist or internist nexus opinion.
Atrial Fibrillation and Cardiac Arrhythmias. Nocturnal oxygen desaturation from untreated OSA is directly linked to atrial fibrillation and other cardiac rhythm disturbances. A cardiologist nexus connecting your cardiac condition to service-connected OSA supports a secondary claim. The applicable diagnostic code depends on the specific arrhythmia and its underlying cardiac etiology; work with your accredited VSO or agent to identify the correct code.
Depression and Anxiety (DC 9434/9400). The cognitive and emotional effects of chronic sleep deprivation from OSA can cause or worsen depression and anxiety. If your mental health symptoms developed or worsened after OSA onset, secondary service connection is available.
Cognitive Impairment / TBI-related Deficits. Veterans with both TBI and OSA often experience compounded cognitive deficits. If you have a service-connected TBI, filing OSA as secondary or aggravated by TBI and then documenting the cognitive impairment picture across both conditions can support a significantly higher combined rating.
Erectile Dysfunction. Chronic hypoxia from untreated or undertreated OSA is linked to erectile dysfunction through vascular and hormonal mechanisms. Secondary ED is ratable under DC 7522 and may also support Special Monthly Compensation under 38 CFR § 3.350 if the condition is total.
6. Common Mistakes That Kill Claims
1. Filing without a sleep study. You cannot get an OSA rating without polysomnography. The VA will not rate a self-reported sleep condition. Get the sleep study done before you file the claim. If you suspect OSA but have not been tested, ask your primary care provider for a referral.
2. Not filing the secondary pathway when direct service connection is difficult. Many veterans assume OSA must be directly linked to a service event. The secondary pathway (OSA caused or worsened by service-connected PTSD, medication use, or another SC condition) is often easier to establish and just as valid. If you have service-connected PTSD and developed OSA afterward, file secondary.
3. Missing the CPAP documentation. If you have a CPAP and file without submitting the prescription or the equipment order, the VA may rate you at 30% (daytime hypersomnolence) instead of 50% (breathing assistance device required). This is a $400-$600 per month difference. Submit the CPAP prescription. Do not assume the VA will find it in your records.
4. Not filing OSA secondary conditions. A 50% OSA rating combined with service-connected PTSD, hypertension, and other downstream conditions can push a veteran's combined rating to 90% or 100%. The secondary conditions that flow from OSA are significant and well-supported by medical literature. File them.
5. Waiting on proposed regulatory changes before filing. The VA's proposed restructuring of DC 6847 would reduce the automatic 50% for CPAP use. Proposed rules are not law until finalized. If you have OSA and a CPAP prescription, file now under existing criteria. Your effective date is locked from the date of your claim or Intent to File (VA Form 21-0966), whichever is earlier.
7. FWD Assist Resources
The FWD Assist HQ Sleep Apnea guide covers the full claim strategy from sleep study to CPAP documentation to secondary condition stacking. The Secondary Conditions guide covers how OSA-related downstream conditions add to your combined rating picture. If your OSA combines with PTSD and you are approaching 70% combined, the TDIU guide at FWD Assist HQ covers the path to individual unemployability.
8. Get Help Without a Claim Shark
Free, accredited help is available through Veterans Service Organizations (VSOs) like the DAV, VFW, and American Legion, county veterans service officers, and VA-accredited agents and attorneys. Anyone charging upfront fees to help you file a VA claim violates 38 USC § 5905 and is committing a federal crime. VA-accredited attorneys and agents may only charge fees after an initial VA decision, and those fees are capped at 20% of past-due benefits. Find free accredited help at va.gov/ogc/accreditation.asp.