C&P Exam for Sleep Apnea: DBQ Questions and Preparation Guide

The C&P exam for sleep apnea is unique compared to other disability claims because it heavily relies on objective sleep study results combined with subjective daytime symptom assessment. Many sleep apnea exams use the VA's Disability Benefits Questionnaire (DBQ), which contains specific questions evaluating sleep disturbance, daytime somnolence, and functional impairment. Understanding the likely questions, reviewing your sleep study findings, and preparing clear descriptions of daytime effects significantly impacts your rating. This comprehensive guide prepares you for a successful sleep apnea C&P exam.

Understanding the Sleep Apnea C&P Exam

The VA C&P exam for sleep apnea includes:

• Sleep Study Review: Examiner reviews your polysomnography (PSG) results and AHI score
• Daytime Symptom Assessment: Fatigue, somnolence, concentration effects
• Sleep Disruption Questions: Nightmare frequency, sleep quality, restfulness
• Functional Impairment Assessment: Impact on occupational and daily functioning
• Related Symptoms: Hypertension, oxygen desaturation events, treatment compliance
• DBQ Completion: VA Disability Benefits Questionnaire specific to sleep disorders

The exam is conducted by a physician (MD, DO, or PA) with sleep medicine knowledge and typically takes 45-60 minutes.

Reviewing Your Sleep Study Before Exam

Critical Preparation: Obtain your sleep study (polysomnography) report and fully understand the findings.

Key Sleep Study Findings to Understand

Apnea-Hypopnea Index (AHI):

• Measures breathing disruptions per hour of sleep
• AHI = (Number of apneas + Number of hypopneas) / Hours of sleep
• Classifications:
  • AHI < 5: Normal
  • AHI 5-14: Mild sleep apnea
  • AHI 15-29: Moderate sleep apnea
  • AHI ≥ 30: Severe sleep apnea

Your AHI confirms the diagnosis and its clinical severity, but it does not set your VA rating percentage. Under DC 6847, the rating is driven by whether you are prescribed a breathing-assistance device (CPAP) and by your daytime symptoms, not by the AHI number itself.

Oxygen Desaturation:

• How low your oxygen drops during apnea events
• Lowest oxygen saturation (nadir)
• Time spent below 90% oxygen saturation
• Higher desaturation = more severe

Apnea Type:

• Obstructive (airway collapse): Most common in service-connected claims
• Central (brain doesn't send breathing signal): Less common
• Mixed: Both types

Sleep Architecture:

• REM sleep percentage (normal 20-25%)
• Sleep stage distribution
• Sleep fragmentation/arousals

Preparation Strategy: Know your AHI score. Understand your oxygen desaturation nadir. Be able to explain to examiner: "My sleep study showed AHI of 28, moderate sleep apnea" rather than "I have bad sleep apnea."

Expected DBQ Questions

Many examiners use the VA Sleep Disorders DBQ. Anticipate these questions:

Sleep Disturbance Questions

"How many nights per week do you have difficulty sleeping?"

• Expected answer: Specific frequency (nightly, 5-6 nights weekly, etc.)
• Not: "Sometimes"
• Vague answers weaken claims

"Describe your sleep pattern. How many hours do you sleep nightly?"

• Expected answer: Actual hours achieved (e.g., "I attempt 8 hours but only sleep 4-5 due to apnea events")
• Detail wake events: "I wake 10-15 times nightly from apnea"
• Mention restlessness, positioning changes

"Do you experience nightmares or night sweats?"

• Expected answer: Yes/no with frequency
• If yes: "3-4 times weekly, wake drenched in sweat"
• These indicate sleep disruption severity

"Do you experience morning headaches?"

• Expected answer: Specific frequency (daily, most mornings, occasional)
• Morning headaches common with untreated sleep apnea from CO2 retention

"Do you experience restless leg syndrome or leg jerking during sleep?"

• Expected answer: Yes/no with description if yes
• Family member may report kicking during sleep

Daytime Symptom Questions

"How many days per week do you experience daytime somnolence (sleepiness)?"

• Expected: Specific frequency (daily, 5-6 days weekly)
• Impact: "I'm fatigued every day despite sleeping"
• Severity: "I fall asleep during meetings, while driving"

"How severe is your daytime somnolence?" (1-10 scale)

• Expected: Specific number
• Mild (1-3): Slight tiredness
• Moderate (4-6): Noticeable fatigue affecting activities
• Severe (7-10): Extreme sleepiness preventing normal function

"What activities trigger your daytime somnolence?"

• Expected: Specific situations
• "Sitting in meetings, driving longer than 30 minutes, watching TV"
• "Anytime I'm not actively moving; fatigue is overwhelming"

"How does daytime somnolence affect your work?"

• Expected: Specific functional impacts
• "I can't concentrate; missed deadlines due to fatigue"
• "I've lost multiple jobs due to inability to stay awake"
• "I require frequent breaks to stay alert"

"How does daytime somnolence affect your social functioning?"

• Expected: Relationship, activity impacts
• "I can't go to evening events; too fatigued"
• "My marriage strained due to my unavailability from exhaustion"
• "I've withdrawn from hobbies and social activities"

Functional Impairment Questions

"Are you able to work full-time?"

• Expected: Yes/no with explanation
• If no: "Sleep apnea prevents full-time work; extreme fatigue"
• If yes: "I work 4-day weeks with accommodation; employer limit is 32 hours"

"What is your current employment status and any job restrictions?"

• Expected: Specific job title and limitations
• "I was a truck driver; can't drive long-haul due to extreme fatigue"
• "Work part-time (20 hours) instead of full-time due to sleep apnea"

"How does sleep apnea affect your ability to concentrate?"

• Expected: Specific examples
• "I can't focus on complex tasks; fatigue prevents sustained concentration"
• "Memory affected; can't remember conversations or instructions"

"Do you require accommodation in your job?"

• Expected: Specific modifications needed
• "Work from home several days weekly"
• "Flexible schedule to rest when exhausted"
• "No safety-sensitive duties; excessive fatigue prevents driving/machinery operation"

Treatment and Compliance Questions

"Are you using CPAP (continuous positive airway pressure) therapy?"

• Expected: Yes/no with details
• Hours used nightly
• Compliance: "Use 4-5 hours nightly" vs. "Not tolerating well; minimal use"

"How well is your sleep apnea controlled with treatment?"

• Expected: Specific assessment
• "CPAP improves symptoms significantly; daytime fatigue much better"
• "CPAP helps somewhat but residual symptoms persist"
• "Unable to tolerate CPAP; symptoms unchanged"

"Have you had other treatment attempts?"

• Expected: Medication trials, surgery, devices attempted
• "Tried oral appliance; didn't work"
• "Considered sleep apnea surgery but declined"

What to Bring to Your Exam

Essential Documents:

• Appointment notice and insurance card
• Discharge papers (DD Form 214)
• Photo identification
• Sleep study report (polysomnography results)

Supporting Documentation:

• Baseline sleep study if available (shows progression)
• Other sleep testing (home sleep apnea test, split-night study)
• Physician letters confirming sleep apnea diagnosis
• CPAP compliance data if applicable
• Medical records documenting daytime somnolence
• Employer documentation of work restrictions
• Personal statement describing daytime fatigue impact
• Family member statement (spouse often observes nighttime symptoms)

Helpful Optional:

• Journal of sleep/fatigue for past 2 weeks
• Work performance reviews showing concentration issues
• Marriage counselor notes if relationship affected

Preparation Strategy

Document Daytime Impact

Create Detailed Functional Description:

Instead of: "I'm tired during the day" Say: "I experience extreme daytime somnolence 7 days weekly. I fall asleep during meetings at work, struggle to maintain concentration for more than 30 minutes, and my recent work performance review noted attention problems. I've nearly fallen asleep while driving twice. Evening social activities impossible; I can't stay awake. My marriage is strained because I'm too exhausted to participate in family activities."

Calculate Sleep Quality Impact

Quantify your sleep disruption:

• "Sleep study showed AHI of 32 (severe), meaning I have 32 breathing-stopping events per hour"
• "That's 224 disruptions during 7-hour sleep, every 1-2 minutes!"
• "With that many events, I get very little restorative sleep"

Highlight Occupational Impact

Specific examples of work effect:

• "Previous job as truck driver: couldn't drive safely due to extreme fatigue despite being well-rested before shifts"
• "Current job: employer accommodated me to part-time work; full-time impossible due to concentration difficulties"
• "I've lost jobs directly due to sleep apnea fatigue"

Address CPAP Compliance Honestly

If using CPAP:

• Provide compliance data
• Note improvement: "CPAP helps significantly; much less daytime fatigue"
• Or acknowledge persistent symptoms: "Still fatigued despite CPAP use; residual symptoms remain"

If not tolerating CPAP:

• Explain why: "Can't tolerate mask; claustrophobic feeling"
• Alternative attempts: "Tried oral appliance; unable to adjust"
• This explains why untreated sleep apnea persists

Common Mistakes to Avoid

Mistake 1: Minimal Documentation of Daytime Impact

Simply saying "I'm tired" doesn't convey functional impairment.

Solution: Be specific about how fatigue affects work, relationships, activities.

Mistake 2: Not Understanding Your Sleep Study

If you can't explain your AHI or severity, credibility questioned.

Solution: Review sleep study report. Understand your AHI score and what it means.

Mistake 3: Inconsistent Sleep/Wake Claims

Saying you're always "extremely fatigued" but also saying you "do fine most days" appears inconsistent.

Solution: Be consistent. If severe, describe consistently severe impact. If variable, explain patterns: "Good days and bad days; bad days prevent work."

Mistake 4: No Occupational Impact Description

Not explaining how sleep apnea affects ability to work.

Solution: Clearly describe job changes, lost jobs, or accommodations needed due to sleep apnea.

Mistake 5: Poor CPAP Compliance Without Explanation

Using CPAP 1-2 hours nightly and claiming severe symptoms raises questions.

Solution: Either use CPAP consistently (supporting severity treatment) or explain tolerance issues preventing use.

Functional Impairment Rating Context

Understanding the actual VA sleep apnea criteria (38 CFR 4.97, Diagnostic Code 6847) helps contextualize your claim. There is no 10% tier:

0%: Asymptomatic, but with documented sleep-disordered breathing 30%: Persistent daytime hypersomnolence (sleepiness) 50%: Requires the use of a breathing assistance device such as a CPAP machine 100%: Chronic respiratory failure with carbon dioxide retention or cor pulmonale (right-heart failure), or requires a tracheostomy

In practice, most veterans on a prescribed CPAP are rated at 50%. Note that the VA has proposed changing these criteria so a CPAP that resolves symptoms would no longer be an automatic 50%; that rule is not final, and existing ratings are protected. See our VA sleep apnea rating changes breakdown for the current status.

VA sleep apnea rating scale (DC 6847)

Sleep apnea is evaluated under 38 CFR 4.97, Diagnostic Code 6847. The scale below is the current law as of 2026. There is no 10% tier under the current rule.

The 50% tier is why a prescribed CPAP matters so much: the rating attaches to the prescription and documented use, not to how well the device controls your symptoms. Read the full VA sleep apnea rating changes analysis for how a pending proposed rule could change this.

Post-Exam Timeline

What Happens:

• Examiner completes detailed report
• Sleep study findings incorporated
• VA assigns the rating under DC 6847 based on prescribed CPAP/breathing-assistance device use and daytime symptoms (the AHI documents clinical severity but does not set the percentage)
• Rating Decision issued (typically 30-60 days)
• Compensation begins following approval

If Rated Lower Than Expected:

• You have one year to appeal
• Submit supplemental claim with additional daytime impairment documentation
• Request higher-level review
• Appeal to Board of Veterans' Appeals

Final Preparation Checklist

• Sleep study report reviewed; AHI understood
• Baseline sleep study (if available) located
• CPAP compliance data obtained
• Personal statement written describing daytime somnolence impact
• Occupational impact documented
• Family member statement obtained (optional but helpful)
• Appointment confirmation received
• Transportation arranged
• Daytime fatigue journal completed (2+ weeks)
• Medical records organized
• All documentation compiled and ready

Frequently Asked Questions

What is the most important factor in a VA sleep apnea rating?

Under Diagnostic Code 6847 (38 CFR 4.97), your VA rating percentage is not keyed to your AHI. The rating is set by whether you require a prescribed breathing-assistance device such as a CPAP (50%), persistent daytime hypersomnolence (30%), or chronic respiratory failure with CO2 retention, cor pulmonale, or a tracheostomy (100%). Your AHI still matters for confirming the diagnosis and its clinical severity (5-14 is mild, 15-29 moderate, 30 or higher severe), but it does not determine the percentage on its own.

How long does the sleep apnea C&P exam take?

The exam typically takes about 45-60 minutes and is conducted by a physician (MD, DO, or PA) with sleep medicine knowledge.

What should I bring to my sleep apnea C&P exam?

Bring your sleep study (polysomnography) report, DD Form 214, photo ID, appointment notice, any CPAP compliance data, medical records documenting daytime somnolence, and personal or family member statements about your symptoms.

How do I describe daytime symptoms effectively at the exam?

Be specific and consistent instead of vague. Rather than "I'm tired," describe concrete functional impacts such as falling asleep in meetings, being unable to concentrate for more than 30 minutes, nearly falling asleep while driving, and how fatigue affects your work and relationships.

Does using CPAP hurt my sleep apnea claim?

No. Be honest about your CPAP use. If it helps, say so; if you cannot tolerate it, explain why (for example, claustrophobia or a failed oral appliance trial). Consistency and honesty about treatment strengthen your credibility with the examiner.

Does using a CPAP guarantee a 50 percent VA sleep apnea rating?

Under the current DC 6847 criteria, a sleep apnea diagnosis confirmed by a sleep study plus a prescription that requires a breathing assistance device such as a CPAP does support the 50% rating. The key is documentation: the VA needs to see the diagnosis, the prescription for the device, and evidence you actually use it. It is not automatic in the sense that you still must be service-connected and have the medical evidence on file. See our VA sleep apnea rating changes page for how a proposed rule could alter this in the future.

Can I get a VA sleep apnea rating without using a CPAP?

Yes. Without a CPAP you can still be rated at 30% if you have persistent daytime hypersomnolence documented on your sleep study and in your medical records, or at 0% if you have documented sleep-disordered breathing but no symptoms. The 50% tier specifically requires a prescribed breathing assistance device, so veterans who are not prescribed or cannot tolerate a CPAP are typically rated at 0% or 30% based on their symptoms.

How do I prove sleep apnea to the VA?

You prove sleep apnea with an official sleep study (polysomnography or a VA-accepted home sleep test) showing your Apnea-Hypopnea Index and a physician diagnosis. For service connection you also need to link the condition to service, either directly through in-service symptoms or as a secondary condition to another service-connected disability. Lay statements from you and people who witnessed your symptoms during service can help establish that timeline.

Can sleep apnea be service-connected secondary to PTSD?

Yes. Sleep apnea is commonly claimed as secondary to PTSD, and a growing body of medical literature supports a connection between the two. You need a current sleep apnea diagnosis, a service-connected PTSD rating, and a medical nexus opinion linking the two. Our guide on sleep apnea secondary to PTSD claims walks through the evidence a strong secondary claim needs.

Can sleep apnea be secondary to sinusitis, GERD, or weight gain?

Yes, sleep apnea can be claimed as secondary to service-connected conditions like chronic sinusitis or rhinitis, GERD, or weight gain caused by a service-connected disability or its medication. Each theory requires a medical nexus opinion explaining how the primary condition caused or aggravated your sleep apnea. Weight-gain claims are more complex because you generally must show the weight gain itself was caused by a service-connected condition, not by lifestyle alone.

What are the proposed 2026 changes to the VA sleep apnea rating?

The VA published a proposed rule in 2022 that, if finalized, would change DC 6847 so that requiring a CPAP no longer automatically means a 50% rating. Under the proposal, sleep apnea that is effectively treated by a device with no residual symptoms would receive a lower rating, and the tiers would shift to 0%, 10%, 50%, and 100%. As of 2026 this rule is not final and is not in effect, and the VA has said veterans already rated or with claims filed before any change would be protected. See our VA sleep apnea rating changes breakdown for the current status.

Does mild sleep apnea get a compensable VA rating?

Rating is based on the DC 6847 criteria, not on the mild, moderate, or severe label from your sleep study. Even mild sleep apnea can reach 50% if it is service-connected and you are prescribed a CPAP or other breathing assistance device. Conversely, mild sleep apnea with no daytime hypersomnolence and no prescribed device may be rated at 0%, which is service-connected but noncompensable and can still support secondary claims like hypertension secondary to sleep apnea.

Conclusion

The sleep apnea C&P exam relies heavily on your sleep study findings (objective AHI measurement) combined with your clear description of daytime functional impairment (subjective but equally important). Understanding your sleep study results, providing specific examples of how fatigue affects your work and daily life, and demonstrating consistent occupational and social impact ensures the VA appropriately rates your condition.

Review your sleep study thoroughly, document detailed daytime impacts, and prepare clear occupational limitation descriptions. With comprehensive preparation addressing both objective test findings and subjective daytime effects, you'll present a compelling case for appropriate sleep apnea rating and compensation.

Attend your exam well-prepared, and you'll be confident that your sleep apnea receives appropriate VA recognition.

---

Sources: VA C&P Exams, Veterans Benefits Administration, 38 CFR Part 4