VA Disability Rating for Sleep Apnea:
CPAP, Hypopnea & How to Win

Obstructive sleep apnea (OSA) has become one of the most commonly claimed VA conditions — and for good reason. Military service is associated with elevated rates of sleep apnea due to sleep deprivation, weight changes, TBI, and PTSD. The VA rates sleep apnea under 38 CFR Part 4, Diagnostic Code 6847, and the most common rating — 30% for requiring a CPAP machine — pays veterans $524.31 per month tax-free in 2025.

This guide explains every rating level, how to prove your sleep apnea is connected to your service, how secondary service connection works through PTSD or TBI, and how to maximize your C&P exam.

What Is DC 6847? Sleep Apnea Rating Code Explained

Diagnostic Code 6847 covers Sleep Apnea Syndromes — including obstructive, central, and mixed types — as well as hypopnea syndromes. The rating is based on the severity of your sleep disorder and whether you require assistive breathing equipment like a CPAP or BiPAP machine.

Sleep apnea is rated under the respiratory system (38 CFR Part 4, Schedule for Rating Disabilities, subpart Respiratory Conditions). The key factors the VA examiner considers are:

• Whether a sleep study confirms apnea events (AHI score)
• Whether you require a CPAP, BiPAP, or other breathing device
• Whether you have chronic respiratory failure, cor pulmonale, or require tracheostomy
• Daytime symptoms: hypersomnolence, cognitive impairment, mood effects

To win a sleep apnea claim, you need three elements: (1) a current diagnosis via sleep study, (2) evidence of an in-service connection or a secondary relationship to a service-connected condition, and (3) a nexus linking your current apnea to that in-service event.

Rating Criteria: 0%, 30%, 50%, 100% (38 CFR Part 4)

Under 38 CFR § 4.97, DC 6847, sleep apnea is rated at one of four levels:

0% — Asymptomatic but with documented sleep disorder

A sleep disorder has been documented and service-connected, but it is asymptomatic — producing no notable symptoms. You have a service-connected diagnosis on record with no current compensable impairment. While this pays $0/month, having a 0% rating preserves your right to file for an increase if symptoms worsen.

30% — Requires Use of Breathing Assistance Device (CPAP/BiPAP)

This is the most common sleep apnea rating. The criteria: persistent daytime hypersomnolence (excessive daytime sleepiness). In practice, once a doctor prescribes a CPAP or BiPAP machine, veterans almost always qualify for 30%. The key evidence is a sleep study confirming apnea AND a prescription for CPAP/BiPAP.

50% — Chronic Respiratory Failure with Hypoxemia, or Cor Pulmonale, or Requires Tracheostomy

The 50% level requires evidence of one of the following:

• Chronic respiratory failure with documented hypoxemia (low blood oxygen)
• Cor pulmonale — right heart failure caused by lung disease (in this case, sleep apnea)
• Requires tracheostomy for airway management

Most veterans with standard CPAP-treated sleep apnea will not qualify for 50% unless they have developed secondary cardiac or pulmonary complications. Veterans with severe OSA and documented nocturnal oxygen desaturation may have a case for 50%.

100% — Chronic Respiratory Failure with Carbon Dioxide Retention or Requires Tracheostomy

The highest rating, 100%, applies when sleep apnea has progressed to chronic respiratory failure with carbon dioxide (CO₂) retention, or when the veteran requires a permanent tracheostomy. This represents a severe, life-altering medical condition. At 100%, a single veteran receives $3,831.30/month in 2025.

2025 Monthly Compensation for Sleep Apnea

Note: Veterans with dependents receive additional compensation. To calculate your exact rate with a spouse, children, or parents, use our VA Disability Calculator.

Sleep apnea at 30% combined with other service-connected conditions can significantly raise your overall combined rating. Use our VA Rating Estimator to see how sleep apnea interacts with your other conditions.

How to Establish Service Connection for Sleep Apnea

Sleep apnea is rarely documented during active service — it often goes undiagnosed for years. This creates a challenge: how do you prove a connection to service when there's no in-service sleep study?

Direct Service Connection

For direct service connection, you need evidence that:

1. Something happened during service that contributed to sleep apnea (sleep deprivation, blast exposure, weight gain, toxic exposure)
2. You currently have a diagnosis of sleep apnea
3. A medical professional opines that the in-service event is "at least as likely as not" related to your current sleep apnea

Evidence supporting in-service sleep disturbances includes:

• Service Treatment Records (STRs) noting fatigue, insomnia, or sleep disturbances
• STRs documenting snoring or witnessed apnea events by roommates/bunkmates
• Medical records from during service showing excessive daytime sleepiness
• Buddy statements from fellow service members who observed sleep problems
• Records of significant weight gain during service (obesity is a major OSA risk factor)

The Nexus Letter: Your Most Important Document

A nexus letter from a board-certified sleep specialist or pulmonologist is often the deciding factor in sleep apnea claims. The letter must include:

• Your current diagnosis (citing the sleep study AHI results)
• A review of your service history and medical records
• An opinion that your sleep apnea is "at least as likely as not" related to your military service
• A rationale — not just a conclusion — explaining why the nexus exists

Secondary Service Connection: PTSD, TBI & More

Even if you can't establish direct service connection, you may qualify for secondary service connection under 38 CFR § 3.310 — meaning your sleep apnea was caused or aggravated by an already service-connected condition.

PTSD → Sleep Apnea

This is the most commonly approved secondary connection pathway. The medical literature supports a strong bidirectional relationship between PTSD and sleep apnea. PTSD causes:

• Hyperarousal and fragmented sleep architecture
• Disrupted REM sleep, increasing apnea events
• Nightmares that worsen sleep quality and increase oxygen desaturation
• Medication side effects (some PTSD medications relax the upper airway)

To establish PTSD → sleep apnea, you need a medical nexus opinion from a physician (psychiatrist or sleep specialist) stating that your PTSD caused or aggravated your sleep apnea. Many sleep specialists are familiar with this pathway and can write an appropriate nexus letter.

TBI → Sleep Apnea

Traumatic brain injury is strongly linked to sleep apnea. TBI can damage the brainstem areas controlling breathing during sleep, alter circadian rhythms, and cause central sleep apnea. Veterans with service-connected TBI who develop sleep apnea — even years after service — may qualify for secondary service connection.

Evidence needed: neurologist or sleep specialist opinion linking your TBI to your sleep apnea, along with your current sleep study results and your TBI service connection documentation.

Other Secondary Pathways

• Service-connected obesity: If your service-connected conditions (e.g., knee injury limiting exercise, medications causing weight gain) contributed to obesity, and obesity caused sleep apnea, you may have a secondary connection.
• Hypothyroidism: Service-connected hypothyroidism can cause sleep apnea.
• Medications: If service-connected conditions require medications that relax upper airway muscles (opioids, benzodiazepines), those medications may cause or worsen sleep apnea.

Sleep Study Requirements and CPAP Compliance Records

What Kind of Sleep Study Do You Need?

VA and private examiners accept both:

• Polysomnography (PSG): Full in-lab sleep study — the gold standard. Records brain activity, oxygen levels, heart rate, breathing patterns, and limb movements simultaneously.
• Home Sleep Apnea Test (HSAT): At-home device measuring airflow, oxygen saturation, and respiratory effort. Less comprehensive than PSG but widely accepted for OSA diagnosis.

The key metric is the Apnea-Hypopnea Index (AHI):

• AHI 5–14: Mild sleep apnea
• AHI 15–29: Moderate sleep apnea
• AHI 30+: Severe sleep apnea

Any AHI above 5 with symptoms qualifies for a CPAP prescription — and any CPAP prescription supporting daytime hypersomnolence qualifies for the 30% VA rating.

CPAP Compliance Records

Modern CPAP machines store compliance data on SD cards or via cloud platforms (like ResMed's myAir app). Your CPAP compliance data showing nightly use is strong evidence that:

• Your condition is real and ongoing
• Your doctor has prescribed CPAP (confirming the 30% threshold)
• You have persistent, documented sleep apnea requiring treatment

Print your CPAP usage report and include it with your VA claim. If you've stopped using your CPAP, note that compliance issues may affect how the VA views the severity of your condition.

C&P Exam Tips for Sleep Apnea

The VA will schedule a Compensation & Pension (C&P) examination after you file a sleep apnea claim. Unlike PTSD exams, sleep apnea C&P exams tend to be shorter and more records-based. Here's how to prepare:

1. Bring your sleep study results. If you have a private sleep study (PSG or HSAT), bring a copy. The examiner will review it and confirm your AHI score and diagnosis.
2. Bring your CPAP prescription and compliance records. These directly support the 30% rating criteria. A CPAP prescription without compliance records leaves the examiner with less evidence.
3. Describe daytime symptoms clearly. The 30% rating is partly based on "persistent daytime hypersomnolence." Tell the examiner: do you fall asleep during the day? Do you struggle to stay awake while driving? Has your job performance been affected?
4. Mention secondary conditions. If your sleep apnea has contributed to hypertension, depression, cognitive issues, or cardiac problems, mention these. They may form the basis of additional claims.
5. Don't minimize CPAP dependency. Some veterans say "I use CPAP and I sleep fine now." This is understandable — but it can lead to a lower rating. CPAP treats symptoms; it doesn't cure sleep apnea. Emphasize that without CPAP, your symptoms would be severe.

Common Errors That Cost Veterans Benefits

1. Filing without a sleep study. VA will deny a sleep apnea claim if there's no objective diagnosis. You must have a sleep study — either through VA or privately — before or concurrent with filing.
2. Not mentioning in-service sleep problems. Many veterans never linked their service-era fatigue, snoring, or insomnia to their later sleep apnea diagnosis. Look back at your STRs. Even a single entry mentioning fatigue or sleep problems strengthens your nexus.
3. Not exploring secondary connection. If you already have service-connected PTSD or TBI, you have a strong secondary pathway. Many veterans claim sleep apnea as direct when secondary would be easier to prove — or vice versa. Explore both.
4. No nexus letter for older veterans. Veterans who separated decades ago may have a larger gap between service and diagnosis. A private nexus letter is especially important to bridge this gap.
5. Accepting a 0% rating without fighting for 30%. Some veterans receive 0% because VA grants service connection but says symptoms are "asymptomatic." If you have a CPAP prescription, you should be at 30%. File a supplemental claim with your CPAP records.

Next Steps: Filing Your Sleep Apnea Claim

If you haven't filed a sleep apnea claim, or if you believe your rating is too low, here's your action plan:

1. Get a sleep study if you don't have one. Talk to your VA or private doctor about ordering a home sleep test or full polysomnography.
2. Get a CPAP prescription and start using it — compliance records become part of your evidence.
3. Request your STRs via VA Form 21-4142 and look for any evidence of in-service sleep disturbances, fatigue, or snoring complaints.
4. Explore secondary connection if you have service-connected PTSD, TBI, or other conditions linked to sleep disruption.
5. Get a nexus letter from a sleep specialist or pulmonologist who can review your records and write a favorable medical opinion.
6. File VA Form 21-526EZ and include all evidence (sleep study, CPAP prescription, nexus letter, STRs).

Sleep apnea is a highly winnable VA claim when you have the right evidence. The 30% rating for CPAP use is straightforward — the challenge is proving the service connection. Whether direct or secondary (especially through PTSD or TBI), the evidence pathways are well-established.

If your sleep apnea claim has been denied, use our VA Rating Estimator to understand what rating you should have — then start your claim or appeal with our free benefits navigator.