
Obstructive Sleep Apnea
Sleep apnea is rated on what your body demands to breathe at night. If you need a CPAP machine, that is automatically 50%. If you have persistent daytime hypersomnolence despite treatment, that is 30%. If a polysomnogram documents the disorder but you are asymptomatic with treatment, that is 0%. The highest tier — 100% — requires documented chronic respiratory failure with carbon-dioxide retention, cor pulmonale, or a tracheostomy.
Obstructive sleep apnea — Diagnostic Code 6847 — is one of the most commonly claimed conditions in the VA system, and one of the most frequently misunderstood. Under 38 CFR §4.97, the rating hinges entirely on what your body requires to keep you breathing: if a polysomnogram shows you need a continuous airway pressure (CPAP) device, the schedule awards 50% automatically. That single fact makes sleep apnea one of the highest-paying single-code ratings available — but it only works if you have the right evidence. The key to a sleep apnea claim is not just the diagnosis; it is proving the nexus to service. Most veterans develop sleep apnea during or shortly after service but are not diagnosed until years later, and that gap is where claims get denied. The two most successful pathways are direct connection — the apnea was caused by weight gain, nasopharyngeal changes, or environmental exposures during service — and secondary connection — the apnea is caused or aggravated by an already service-connected condition such as PTSD, obesity from a service-connected orthopedic condition, or medications that relax the airway.
The Diagnostic Codes
Conditions Rated In Sleep Apnea Claims
These are the codes the VA will actually stamp on a decision in this group. The code you are granted under decides which formula is used — and that decides your percentage. Sleep Apnea (DC 6847) is highlighted below.
Before Anything Gets Rated
What The VA Is Actually Looking For — And What Service Connection Really Means
Before the VA ever opens the rating schedule, it asks one question: is this disability the government’s responsibility? That is what “service connection” means. It is not a diagnosis, it is not sympathy, and it is not a reward for having served. It is a legal finding that a current, diagnosed disability is linked to something that happened to you in uniform. Percentages come later. If service connection is not established, there is nothing to rate and the claim is denied — no matter how bad the sleep apnea (dc 6847) is.

The three elements the VA must find. All three. Every time.
These come out of Caluza v. Brown and Shedden v. Principi, and they are the checklist a rating officer works through on your file. Miss one and the claim fails on that element alone.
A current, diagnosed disability
A doctor has to have written a diagnosis in a medical record — sleep apnea (dc 6847). Symptoms by themselves are not a disability the VA can rate. Saunders v. Wilkie held that pain causing functional impairment can be a disability, but you still need a clinician to document it as diagnosed and impairing. The diagnosis must exist now, during the claim period — not only years ago.
An in-service event, injury, illness or aggravation
Something in service had to have happened — an injury, an exposure, a documented sick call, or steady wear over a career. It does not have to be one dramatic moment and it does not have to be spelled out in your service treatment records: buddy statements, unit records, performance evaluations and your own competent lay testimony can establish it.
A medical nexus linking the two
A qualified medical opinion that says the current diagnosis is at least as likely as not related to the in-service event. That phrase matters: at least as likely as not means 50 percent or better. Under 38 C.F.R. §3.102, when the evidence is evenly balanced, the benefit of the doubt goes to you and the claim must be granted.
The five ways service connection is established
Most veterans only know the first one. The other routes are lower-effort paths to the same grant — and the secondary route is the one most often left on the table.
Direct — 38 C.F.R. §3.303(a)
The injury or disease began in service and never went away. The classic route: three elements, one nexus opinion.
Chronicity and continuity — §3.303(b)
A chronic condition shown in service, plus continuity of the same symptoms from separation to now, can establish the link without a formal nexus opinion. Your own testimony about symptoms you can observe is competent evidence.
Presumptive — §3.307 and §3.309
Certain chronic diseases are presumed service connected if they manifest to a compensable degree within a set window after separation. You do not have to prove causation at all.
Secondary — §3.310(a) and (b)
A disability proximately due to, or aggravated by, an already service-connected condition is itself service connected. This is how the downstream conditions sleep apnea (dc 6847) sets off get on the rating sheet.
Aggravation of a pre-service condition — §3.306
If you entered service with a condition and service made it permanently worse, the increase is compensable. The VA must rebut the presumption of soundness by clear and unmistakable evidence — a bar it frequently fails to meet.
VA medical care — 38 U.S.C. §1151
An additional disability caused by VA treatment, surgery, or a failure to diagnose is compensated as if it were service connected.
The bottom line — there is no way around this
No diagnosis, no rating. It has to be chronic. It has to cause impairment.
Without a diagnosis, the VA will not rate your claim.
The rating schedule is a list of diagnosed conditions and the codes attached to them. If no clinician has put a name on your condition in a medical record, there is no code to assign. Symptoms reported to a claims examiner are not a diagnosis. Get in front of a doctor and get it written down.
The condition must be chronic.
Chronic means persistent and ongoing — not something that resolved decades ago. The VA compensates a disability you carry today, which is why a documented, continuing treatment history matters more than the single worst day you ever had.
It must cause actual impairment.
Under 38 C.F.R. §4.1 and §4.10, VA compensation exists to pay for reduction in earning capacity. A diagnosis that costs you nothing gets a zero percent rating. The function you have lost is what converts a diagnosis into a percentage.
What this means for you before you file: get the diagnosis in writing, get the treatment history documented so the chronicity is undeniable, and describe the impairment in functional terms — what you can no longer do, and what it costs you at work and at home. Everything on the rest of this page is built on top of those three things.
The Percentages
Rating Schedule — Sleep Apnea Syndromes, Diagnostic Code 6847
Reproduced verbatim from 38 CFR §4.97, Diagnostic Code 6847. This code covers obstructive, central, and mixed sleep apnea syndromes. The critical distinction is between the 30% and 50% tier: if a polysomnogram results in a CPAP prescription, the rating is 50% regardless of whether symptoms persist — the device requirement alone satisfies the criterion.

100%
Chronic respiratory failure with carbon-dioxide retention or cor pulmonale; or requires tracheostomy.
50%
Requires use of a breathing-assistance device such as a continuous airway pressure (CPAP) machine.
30%
Persistent daytime hypersomnolence.
0%
Asymptomatic but with documented sleep disorder breathing.
Service Connection
Advice from the Advocate

The advocate's notes on causation — Sleep Apnea (DC 6847)
The separate arguments that decide this code: where the VA will attack, the regulation that answers it, and the evidence that closes the gap.

1Direct service connection — §3.303(a)
A current diagnosis of obstructive sleep apnea linked to an in-service event or condition. If the veteran developed symptoms during service — snoring, daytime sleepiness, witnessed apneas — and a polysomnogram confirms the diagnosis, the nexus opinion ties the current disorder to the in-service onset. Buddy statements from bunkmates or roommates describing loud snoring and breathing pauses during service are critical evidence.
2Continuity of symptomatology — §3.303(b)
If the veteran was not diagnosed during service, 38 CFR §3.303(b) bridges the gap with continuity. The veteran had symptoms during service (snoring, daytime sleepiness, falling asleep on duty), the symptoms continued after discharge, and the diagnosis was eventually confirmed by a post-service polysomnogram. Lay statements documenting the continuous symptom pattern are essential.
3Secondary to PTSD — §3.310(a)
PTSD causes autonomic nervous system dysregulation, sleep fragmentation, and weight gain from medications and reduced activity — all of which worsen or cause obstructive sleep apnea. A medical opinion explaining the physiological mechanism connecting PTSD to upper-airway collapse during sleep satisfies §3.310(a) proximate causation.
4Secondary to weight gain from service-connected conditions — §3.310(a)
When a service-connected orthopedic condition (knee, back, ankle) prevents exercise and causes significant weight gain, and that weight gain causes or worsens sleep apnea, the chain of causation is: service-connected injury → weight gain → sleep apnea. A nexus letter establishing this chain and a BMI history showing the trajectory satisfies §3.310(a).
5Aggravation by a service-connected condition — §3.310(b)
If pre-existing sleep apnea was aggravated beyond its natural progression by a service-connected condition — worsened by PTSD medication, increased weight from immobility, or chronic sinusitis — §3.310(b) awards a rating for the degree of aggravation. A baseline severity comparison before and after the aggravation establishes the claim.
Exposure & Aggravation
How Sleep Apnea (DC 6847) Happens In Service — And How It Gets Worse
How veterans pick this up in uniform — Sleep Apnea (DC 6847)
Sleep Apnea (DC 6847) rarely announces itself with one dramatic moment. It is built by what service asked of your body over months and years — and once it is service-connected, it is compensated for how it keeps getting worse, not for how it started. Below is how veterans pick this up in uniform, and who is most prone to it.
- Weight gain from service-connected orthopedic conditions limiting mobility and exercise
- Nasopharyngeal trauma from blast exposure, broken nose, or deviated septum
- Environmental exposures — burn pits, sand, dust, and chemical irritants causing chronic airway inflammation
- PTSD-related sleep fragmentation and autonomic nervous system dysregulation
- Medications for service-connected conditions (muscle relaxants, opioids, sedatives) that relax the upper airway
- Shift work and irregular sleep schedules during deployment disrupting circadian rhythm and sleep architecture
- Chronic sinusitis or rhinitis from service increasing upper-airway resistance
- Cervical spine injuries altering head and neck posture, narrowing the airway during sleep
Who is most prone to it
Any veteran with a service-connected condition that causes weight gain or limits exercise — orthopedic injuries, spinal conditions, or chronic pain; veterans with PTSD whose sleep fragmentation masks or worsens the apnea; veterans exposed to burn pits, sandstorms, or chemical irritants; veterans with nasal trauma, deviated septum, or chronic rhinosinusitis; veterans on sedating medications for service-connected conditions.
The Symptoms
What Sleep Apnea (DC 6847) Actually Feels Like
- Loud, chronic snoring reported by a bed partner or roommate
- Witnessed apneic episodes — pauses in breathing during sleep followed by gasping or choking
- Waking up gasping, choking, or feeling like you are suffocating
- Excessive daytime sleepiness despite a full night of sleep — falling asleep at work, while driving, or during conversations
- Morning headaches caused by overnight oxygen desaturation
- Difficulty concentrating, brain fog, and impaired short-term memory
- Irritability, mood swings, and worsening of depression or anxiety symptoms
- Nocturia — waking multiple times per night to urinate
- Dry mouth and sore throat upon waking
- Unrefreshing sleep — feeling exhausted no matter how many hours you sleep
How this one is rated
Sleep apnea is rated under 38 CFR §4.97, Diagnostic Code 6847 — Sleep Apnea Syndromes (Obstructive, Central, Mixed) on a four-tier ladder based on the severity of the disorder and the treatment required. 0% for asymptomatic sleep apnea documented by polysomnography but not requiring treatment; 30% for persistent daytime hypersomnolence; 50% for requiring use of a breathing-assistance device such as a CPAP machine; 100% for chronic respiratory failure with carbon-dioxide retention or cor pulmonale, or requiring a tracheostomy.
What you are measured against
The examiner reviews polysomnography results confirming the diagnosis, documents whether the veteran requires a CPAP or BiPAP device, assesses the presence and severity of daytime hypersomnolence, and evaluates for complications such as cor pulmonale or chronic respiratory failure. The examiner also records the veteran's compliance with CPAP therapy and whether symptoms persist despite treatment.
Each One On Its Own Page
Secondary Conditions — Aggravated or Caused by a Current Service-Connected Condition
Under 38 CFR §3.310(a), a disability that is proximately due to a service-connected condition is service-connected in its own right — and under §3.310(b), so is any additional disability caused when a service-connected condition aggravates a problem you already had. Each condition below is a separate evaluation with its own diagnostic code and its own percentage. They do not fold into the sleep apnea (dc 6847) rating — they stack on top of it. A veteran who claims only the primary condition leaves these ratings on the table.

Weight gain and cardiovascular consequences
Untreated or undertreated sleep apnea drives a cascade of secondary health consequences: weight gain from metabolic disruption and reduced activity due to fatigue, hypertension from repeated overnight sympathetic surges, and cardiovascular disease from chronic intermittent hypoxia. If you have gained significant weight since the apnea began, or if you have developed high blood pressure or heart problems, these are secondary conditions that deserve their own claims and their own ratings.

Cardiovascular strain and hypertension
Each apneic episode triggers a sympathetic nervous system surge — your heart rate spikes, your blood pressure climbs, and your blood vessels constrict, all while your blood oxygen drops. Over years, this nightly cardiovascular beating causes sustained hypertension, left ventricular hypertrophy, and increased risk of stroke and heart attack. If you have been diagnosed with hypertension after your sleep apnea diagnosis, the two are almost certainly connected — and the hypertension deserves its own secondary claim under §3.310.

Cognitive decline and mental health deterioration
Chronic sleep deprivation from untreated apnea causes measurable cognitive impairment: reduced concentration, impaired memory, slowed reaction times, and difficulty with complex tasks. It also worsens existing mental health conditions — PTSD nightmares become more frequent, depression deepens, anxiety intensifies. If your mental health has deteriorated since the sleep apnea began, or if you cannot concentrate well enough to hold a job, document the timeline and the connection.
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Sleep Apnea Claims, In Detail
Sleep Apnea Claims — Service Connection In Depth
Here is each claimable condition in this group on its own terms — what it is, what service did to it, and what the VA requires before it will connect it.

Obstructive Sleep Apnea
Obstructive sleep apnea — Diagnostic Code 6847 — is one of the most commonly claimed conditions in the VA system, and one of the most frequently misunderstood. Under 38 CFR §4.97, the rating hinges entirely on what your body requires to keep you breathing: if a polysomnogram shows you need a continuous airway pressure (CPAP) device, the schedule awards 50% automatically. That single fact makes sleep apnea one of the highest-paying single-code ratings available — but it only works if you have the right evidence. The key to a sleep apnea claim is not just the diagnosis; it is proving the nexus to service. Most veterans develop sleep apnea during or shortly after service but are not diagnosed until years later, and that gap is where claims get denied. The two most successful pathways are direct connection — the apnea was caused by weight gain, nasopharyngeal changes, or environmental exposures during service — and secondary connection — the apnea is caused or aggravated by an already service-connected condition such as PTSD, obesity from a service-connected orthopedic condition, or medications that relax the airway.
You are reading this page now
The C&P Exam
What To Expect At The Sleep Apnea (DC 6847) Exam
This is the encounter your rating is built on. The examiner has a checklist and a limited window — what follows is exactly what happens in that room, so none of it surprises you.
Clinical Section — What To Expect at the Exam
What to Expect at Your Sleep Apnea C&P Examination
Diagnostic Code 6847 — this exam determines your breathing-assistance device requirement
A sleep apnea C&P exam is built around one question: does the veteran require a CPAP machine? If the answer is yes, confirmed by a polysomnogram and a physician's prescription, the rating is **50%** — period. The exam itself is not a sleep study; it is a records review and clinical assessment. The examiner will review your polysomnography report, your CPAP prescription, your compliance data, and your reported symptoms. Your job is to ensure every piece of evidence is in the file before you walk in, because the examiner's opinion will be based almost entirely on what the records show — and what you describe about your daily functional impairment from the disorder.
Condition
Sleep Apnea (DC 6847) — DC 6847
Governing questionnaire
VA Form 21-0960L-2, Sleep Apnea DBQ
Click the form number to open the official questionnaire on VA.gov.
01In The Room
What happens during the exam
The tests and maneuvers for this condition
- Review of polysomnography (sleep study) results confirming the diagnosis and severity
- Documentation of CPAP/BiPAP prescription by a physician
- Review of CPAP compliance data — hours of use per night, residual AHI on therapy, mask leak rates
- Epworth Sleepiness Scale questionnaire to quantify daytime hypersomnolence
- Physical examination of the upper airway — Mallampati score, tonsil size, nasal septum deviation
- Neck circumference measurement — a surrogate marker for airway collapsibility
- Pulse oximetry to assess resting oxygen saturation
- Review of comorbid conditions that may be causing or worsening the apnea (PTSD, obesity, sinusitis)
What gets measured, and to what number
Apnea-Hypopnea Index (AHI)
The number of apnea and hypopnea events per hour of sleep, as recorded on polysomnography. An AHI of 5–15 is mild, 15–30 is moderate, and above 30 is severe. The AHI drives the CPAP prescription.
Oxygen desaturation nadir
The lowest blood oxygen level recorded during the sleep study. Significant desaturations (below 85–88%) indicate severe physiological stress and support the diagnosis and the need for treatment.
CPAP/BiPAP prescription and compliance
Whether a breathing-assistance device has been prescribed, and the veteran's usage data showing hours per night and treatment efficacy (residual AHI on therapy).
Epworth Sleepiness Scale (ESS) score
A validated questionnaire measuring daytime sleepiness. Scores above 10 indicate excessive daytime sleepiness; scores above 16 indicate severe sleepiness. The ESS documents the functional impact of the disorder.
Neck circumference and BMI
Body habitus measurements that help explain the etiology of the airway obstruction. A neck circumference above 17 inches in men or 16 inches in women is a significant risk factor for obstructive sleep apnea.
02Orientation
What to expect during this exam
What makes this exam different from every other C&P exam
1CPAP prescription is the 50% trigger
Under the current rating schedule, the single fact that drives the highest commonly-awarded rating is the CPAP prescription. If you have a polysomnogram showing obstructive sleep apnea and a physician has prescribed a CPAP or BiPAP, the 50% rating is automatic. Bring a copy of your polysomnogram report and the physician order for the device.
2Daytime hypersomnolence must be persistent
If you do not use a CPAP but suffer persistent daytime hypersomnolence — falling asleep at work, while driving, or in meetings despite adequate sleep opportunity — the 30% tier applies. The word "persistent" matters: occasional drowsiness is not enough. Document the pattern over weeks and months with a sleep diary and lay statements.
3Compliance data strengthens your claim
Modern CPAP machines record usage data — hours per night, AHI with the device on, mask leak rates. Download and print this data for the examiner. High compliance with persistent symptoms supports the argument that the condition is more severe than the device alone can control, which may support secondary conditions or TDIU.
See it before you sit in the room
03Preparation
Know your symptoms and secondary factors
What the report must actually say about sleep apnea (dc 6847) — dc 6847
- "I stop breathing in my sleep — my wife/partner has witnessed it and can describe the episodes" — buddy statements carry enormous weight.
- "I use a CPAP machine every night — here is my prescription and my compliance data" — the 50% trigger.
- "Even with the CPAP, I still wake up exhausted and fall asleep during the day" — persistent hypersomnolence despite treatment.
- "I gained 60 pounds after my knee surgery because I could not exercise" — secondary nexus through weight gain.
- "My PTSD medications make me sleep harder but my breathing gets worse" — secondary nexus through medication effects.
- "I was told I snored like a chainsaw in the barracks — my bunkmate wrote a buddy statement" — in-service symptom evidence.
Pain level, frequency, lost work and functional loss — how to say them

Describe the daytime drowsiness as dangerous
The 30% rating requires "persistent daytime hypersomnolence" — the examiner needs to hear that your sleepiness is not mild tiredness but a disabling, dangerous level of drowsiness that affects your ability to function safely. Falling asleep while driving or operating machinery transforms subjective fatigue into an objective safety hazard.
If you have nearly fallen asleep at the wheel, drifted across lanes, or been reprimanded at work for drowsiness, those are critical facts.
"I have nearly fallen asleep at the wheel three times this year. I pulled over on the highway because I could not keep my eyes open. My wife will not let me drive on road trips anymore."

Let your bed partner testify to the apneas
You cannot witness your own apneic episodes. Your bed partner, roommate, or barracks mate is the only person who can describe the pauses in breathing, the gasping, and the choking. Their testimony is powerful evidence because it documents what happens while you are unconscious — and it often describes symptoms far more severe than you realize.
A written buddy statement signed and dated is ideal. Even a verbal description that the examiner records in the DBQ is better than nothing.
"My wife says I stop breathing for what feels like a full minute, then I gasp and jerk awake. She lies there counting the seconds of silence, terrified."

Describe the choking awakenings vividly
Waking up choking or gasping is the hallmark of obstructive sleep apnea. The examiner needs to understand that these are not gentle awakenings — they are terrifying episodes where you feel like you are suffocating. The frequency and severity of these episodes document the active pathology and support the need for a breathing-assistance device.
If the choking wakes your partner, if you sit bolt upright in a panic, or if your heart races for minutes afterward, describe all of it.
"I wake up choking three or four times a night. I sit straight up gasping for air like I was underwater. My heart pounds for five minutes before I can lie back down."

Connect the sleep disorder to work performance
Falling asleep at your desk, missing meetings, or being unable to concentrate because of sleep deprivation is functional impairment that connects directly to the rating criteria. If your supervisor has noticed, if you have been written up, or if you have lost a job because of the drowsiness, those facts support both the 30% persistent-hypersomnolence tier and any future TDIU claim.
Bring performance reviews, disciplinary notices, or a supervisor statement if available.
"I fall asleep at my desk almost every afternoon. My boss has warned me twice. I cannot get through a meeting without my eyes closing."
Secondary conditions to raise in the same appointment

Weight gain and cardiovascular consequences
Untreated or undertreated sleep apnea drives a cascade of secondary health consequences: weight gain from metabolic disruption and reduced activity due to fatigue, hypertension from repeated overnight sympathetic surges, and cardiovascular disease from chronic intermittent hypoxia. If you have gained significant weight since the apnea began, or if you have developed high blood pressure or heart problems, these are secondary conditions that deserve their own claims and their own ratings.

Cardiovascular strain and hypertension
Each apneic episode triggers a sympathetic nervous system surge — your heart rate spikes, your blood pressure climbs, and your blood vessels constrict, all while your blood oxygen drops. Over years, this nightly cardiovascular beating causes sustained hypertension, left ventricular hypertrophy, and increased risk of stroke and heart attack. If you have been diagnosed with hypertension after your sleep apnea diagnosis, the two are almost certainly connected — and the hypertension deserves its own secondary claim under §3.310.

Cognitive decline and mental health deterioration
Chronic sleep deprivation from untreated apnea causes measurable cognitive impairment: reduced concentration, impaired memory, slowed reaction times, and difficulty with complex tasks. It also worsens existing mental health conditions — PTSD nightmares become more frequent, depression deepens, anxiety intensifies. If your mental health has deteriorated since the sleep apnea began, or if you cannot concentrate well enough to hold a job, document the timeline and the connection.
How to prepare for this specific exam
- Obtain a copy of your polysomnography report — the full overnight study, not just a summary letter.
- Print your CPAP machine compliance data (most machines have an SD card or app that tracks this).
- Bring your physician's original prescription or order for the CPAP device.
- Collect buddy statements from anyone who witnessed your snoring, choking, or breathing pauses during service or after.
- Keep a sleep diary for at least 30 days before the exam documenting sleep quality, daytime sleepiness, and naps.
- Bring your BMI and weight history if claiming secondary connection through weight gain from a service-connected condition.
- Do not skip your CPAP the night before — but be honest about nights when you cannot tolerate it.
04The Protocol
What procedures are required during the exam
These are not courtesies. Each comes out of the regulation or out of binding case law. Take this list in with you and tick them off as they happen.

01Physical airway and body habitus assessment
38 C.F.R. §4.97, Diagnostic Code 6847
The examiner assesses the veteran's neck circumference, BMI, Mallampati airway classification, tonsil size, and nasal septum alignment. A thick neck (>17" in men, >16" in women), high Mallampati score (Class III-IV), enlarged tonsils, and deviated septum are all anatomical risk factors that explain why the airway collapses during sleep. These objective findings support the diagnosis and may help establish the in-service etiology — particularly if the nasopharyngeal anatomy was altered by military trauma.
Physical examination findings anchor the diagnosis in objective anatomy, not just a sleep study number. A thick neck and high Mallampati score combined with a confirming polysomnogram create an undeniable clinical picture.

02Polysomnography review and interpretation
38 C.F.R. §4.97
The examiner reviews the full overnight polysomnography report — the apnea-hypopnea index (AHI), oxygen desaturation nadir, sleep stage distribution, arousal index, and leg movement index. The AHI is the primary number: 5–15 is mild, 15–30 is moderate, >30 is severe. The oxygen nadir shows how low the blood oxygen drops during apneas — values below 85% indicate significant physiological stress. The examiner confirms that the study was conducted in an accredited sleep laboratory and that the results support the diagnosis and treatment recommendations.
Polysomnography is the gold-standard diagnostic test for sleep apnea. Without it, there is no confirmed diagnosis. The AHI and oxygen nadir drive the CPAP prescription decision, which in turn drives the 50% rating.

03Sleep medicine physician consultation
38 C.F.R. §§3.159, 4.97
If the initial polysomnogram was read by a general physician, a formal consultation with a board-certified sleep medicine physician adds weight to the diagnosis and the CPAP prescription. The sleep specialist can also provide a nexus opinion linking the apnea to service-connected conditions, explain why the apnea developed at the time it did, and detail the expected progression without and with treatment.
A specialist opinion carries more weight than a generalist's in VA adjudication. A sleep medicine physician who explains the pathophysiology connecting PTSD, weight gain, or nasal trauma to upper-airway obstruction provides the strongest possible nexus.

04Epworth Sleepiness Scale and symptom questionnaire
38 C.F.R. §4.97
The Epworth Sleepiness Scale (ESS) is a validated eight-question instrument that measures how likely the veteran is to doze off in common daily situations — reading, watching TV, riding in a car, sitting in a meeting. A score above 10 indicates excessive daytime sleepiness; above 16 indicates severe sleepiness. The examiner administers this during the exam, and the score becomes part of the permanent record supporting the severity of the condition.
The ESS transforms subjective "I'm tired" into a standardized, quantified score that the rating board can compare to population norms. A high ESS score directly supports the 30% "persistent daytime hypersomnolence" criterion and documents functional impairment.

05Functional and occupational impact assessment
38 C.F.R. §§4.10, 4.40
The examiner documents how sleep apnea affects the veteran's employment, driving safety, daily activities, and relationships. Chronic fatigue, cognitive impairment, and dangerous drowsiness can destroy a career and make routine tasks hazardous. If the veteran has been fired, demoted, or disciplined due to sleepiness, or if driving has become unsafe, those are concrete occupational losses that the examiner must record — and they feed directly into any future TDIU claim.
The occupational impact assessment captures the real-world consequences of the sleep disorder beyond the polysomnogram numbers. A veteran with a 50% CPAP rating who also cannot safely drive or hold a job has a stronger case for additional ratings and TDIU than one whose only evidence is the AHI.
05The Standard
What makes an exam adequate
Read your exam report against these. An exam that fails the standard is legally inadequate, and an inadequate exam is something you challenge rather than accept.
The range of motion has to be MEASURED, not estimated
38 CFR §4.46 states that the use of a goniometer in the measurement of limitation of motion is indispensable in examinations conducted within the Department of Veterans Affairs. An examiner who eyeballs your bend and writes a number has not complied with the regulation. This is the most common defect in a spine exam and it is the easiest one to spot from the chair.
Joints must be tested in every required condition
Under Correia v. McDonald, a joint examination for pain must, wherever possible, record active motion, passive motion, motion in weight-bearing and motion in non-weight-bearing — and where relevant, the range of the opposite undamaged joint. An exam that records one set of numbers and stops is incomplete on its face, and that incompleteness is grounds to challenge it.
Flare-ups have to be addressed, not dodged
Under Sharp v. Shulkin, when a veteran describes flare-ups, the examiner is obligated to estimate the additional loss of motion during a flare based on all the available evidence — including your own account of it. "I cannot opine without resorting to mere speculation" is not automatically acceptable; the examiner has to have actually sought the information first and explained why an estimate is impossible.
Repetitive use and functional loss must be factored in
Sections 4.40 and 4.45, and the DeLuca line of cases, require that pain, weakness, fatigability, incoordination and lack of endurance after repeated use be considered — and expressed in additional degrees of lost motion where that is feasible. Your rating is supposed to reflect what you can do on the fifth repetition and on a bad day, not just the first careful bend of the morning.
Neurological findings must be separately documented
Note (1) to the General Rating Formula requires that any associated objective neurologic abnormality be evaluated separately under an appropriate diagnostic code. If your leg symptoms were mentioned in the narrative but never tested and never assigned, the exam did not do what the schedule requires of it.
The examiner must review the record when the question requires it
Where a medical opinion on cause, aggravation or a secondary relationship was requested, the examiner is expected to review the relevant evidence and give a reasoned explanation. A bare conclusion — "less likely than not related to service" with no reasoning attached — carries little weight, and an opinion with no rationale is challengeable.
The examiner has to be qualified for the body system
The VA may use its own clinicians or a contract vendor. Either way, the examiner is expected to have the competence to evaluate the system being examined. If a spinal exam with a neurological component was performed by someone who never tested a reflex, that is a problem worth raising.
The exam has to be CURRENT
A rating is supposed to reflect your condition now. An exam performed before a documented worsening, or years before the decision, may not support the current evaluation — and you can request a new one on that basis.
06Afterward
What happens after your exam is complete
The examiner writes the report and submits it, it is reviewed for completeness, and only then does the claim move toward a rating decision. Here is what actually controls the clock.

The examiner writes and submits the report
Days 1–5 after the exam
The examiner compiles the history, the physical findings, the measurements and any testing into the questionnaire, adds any requested medical opinion, and submits it. Contract vendors typically have a turnaround requirement measured in days, not weeks.
Nothing about your claim moves while this is happening, and nothing you do speeds it up. What matters is that the report is written from notes taken in the room — which is exactly why what you said, and how the examiner recorded it, is already locked in by the time you get to your car. Request your copy now rather than later.

Quality review — and the request for clarification
Days 3–30
The report is reviewed for completeness. If it is internally inconsistent, missing a required field or missing the opinion the VA asked for, it goes back for correction or a second opinion. This is the single most common cause of a claim appearing to stall after the exam.
Understand what a finished exam actually means: it means the appointment happened, not that your claim is ready for a decision. If the reviewer finds a blank range-of-motion field, an opinion that does not answer the question that was asked, or findings that contradict each other, the file goes back out for more information. That is a normal quality control step, not a rejection of your claim, and it is not a sign that you did something wrong — but it does add weeks, and it is the reason so much of what you read online sounds like the system is broken.

Your status tracker moves backward — and it is usually not bad news
Any time after the exam
The online tracker shows eight steps. Veterans watch it reach step 7 or 8, then find it back at step 3 or 4 a week later. That regression almost always means one thing: the file went back for additional information, most often a returned or clarified exam.
This is the number one thing veterans panic about, and it is misread constantly. The tracker is not a countdown — it is a location marker. When the VA decides it needs one more piece of evidence, a corrected exam, a clarifying medical opinion or an outstanding record, the claim is routed back to the evidence gathering step and the bar redraws itself where the file physically is. It does not mean a denial. It does not mean your case was thrown out or restarted. It does not erase anything already in the file, and it does not change your effective date. What it does mean is that something in the record was not good enough to decide on yet — which is worth knowing, because if the weak link is the exam, this is the window where a corrective statement or a private opinion from your own doctor does the most good.

Evidence gathering closes
Varies
Before anyone rates your claim, the file has to be built. This is the stretch where the Regional Office pulls together everything the decision will rest on: your service treatment records, your VA medical records, any federal records, the C&P exam report, and any private records it has requested on your behalf. The claim sits here until the VA is satisfied the record is complete enough to decide — which is exactly why a status tracker can appear to stall or slide backward at this step. You are not powerless while it sits here. Anything you put into the file yourself lands the day you send it, and every relevant record you add now is one less thing the rater can later say was missing.
A VA request to a private provider is a letter that may or may not be answered, and the VA will wait on it for weeks before moving on — sometimes without ever getting a response. A record you walk in yourself, or upload through your claim, is in the file the day you send it. So do not sit and wait to be asked. If you know a treatment record, an imaging report, a surgical note or a buddy statement exists and it matters, send it now, with a VA Form 21-4138 statement that explains in plain words what the document is and what it shows. This is also the window where a corrective statement or a private medical opinion from your own doctor does the most good — before the rater has locked in a decision, not after. Once the evidence gathering step closes, the file goes to a rating specialist, and your chance to shape the record cheaply and quickly closes with it.

Rating decision and promulgation
Typically several weeks after the last piece of evidence lands
This is the stage where your evidence finally becomes a number. A rating specialist — not the examiner, and not a doctor — takes everything in the file and applies the rating schedule to it: the exam findings, your range-of-motion measurements, your lay statements, your private records and any medical opinions. They assign a diagnostic code to each condition, pull a percentage from the schedule, set your effective date, and either grant, deny or defer each issue. The decision is then reviewed and authorized — promulgation is simply the VA’s word for making it official — and the decision letter and code sheet are generated and mailed. Where an award is made, payment follows the effective date rules, and back pay is calculated to that date.
Read the code sheet, not just the percentage. It names the diagnostic code used, the exact measurements relied on and the effective date assigned — and that is where most mistakes live. This is a human being reading a file under a production quota, and the two things that go wrong most often are a rater using the pre-repetition range-of-motion numbers instead of the worst-case figures §4.59 and §4.40 require, and a claimed condition being decided on a thin record or quietly left out. Check whether painful motion was accounted for, whether your radiculopathy was rated separately under Note (1) or folded into the spine rating, and whether every condition you claimed was actually addressed. A decision you do not read is a decision you cannot challenge — and the deadline to challenge it starts the day the letter is dated, not the day you understand it.

C&P examination is the decision letter
The day it lands in your mailbox
The envelope holds two different documents: the narrative decision letter, and the code sheet. Together they are the single most important piece of paper in your claim, because every deadline, every appeal option and every dollar of back pay is set by what is printed on them — not by what you were told at the exam.
Most veterans read one thing on that letter: the percentage. Then they either celebrate it or get angry at it, and file it in a drawer. That is the mistake. The percentage is the conclusion; the reasons section is the reasoning, and the reasoning is what you attack. It tells you which diagnostic code the rater used, which range-of-motion figures they relied on and which they ignored, whether painful motion under §4.59 was accounted for, whether your neurological findings were rated separately under Note (1) or folded into the spine rating, which conditions were decided, which were deferred, and which were never addressed at all. It also assigns your effective date, which controls back pay. A rating that looks low is very often not a disagreement about how bad your neck is — it is a rater who used the pre-repetition numbers, or missed the radiculopathy, or rated one side and not both. You cannot see any of that from the percentage. Do not go by the percentage alone, and do not decode it by yourself if you are not sure what you are looking at — have someone who reads these for a living read it with you before the clock runs out. You have one year from the date on that letter to file a Higher-Level Review (VA Form 20-0996), a Supplemental Claim (VA Form 20-0995) or a Board appeal, and the deadline runs from the date printed on the letter, not the date you opened it. Bring it to this office and we will go through it line by line, at no cost, and tell you plainly whether it is right.
What normal looks like: 30 to 60 days for a simple claim, longer for a complex one
After your exam you should expect some kind of notification from the VA — a decision, a request for more information, or a notice that another exam has been scheduled. For a straightforward, single-issue claim that often lands within 30 to 60 days. But 30 to 60 days is a rough guide, not a rule, and it is not a ceiling. A claim with several conditions, a toxic-exposure or presumptive question, a returned exam, or missing records routinely takes 90 days or more, and that alone does not mean anything is wrong — the more moving parts your case has, the longer the VA takes to work it. Inside the window that is normal for a case like yours, silence is expected and there is nothing to fix, and a tracker that jumps backward is normal too.
What matters is not a fixed number of days — it is whether the claim is still moving and whether you can get a straight answer about where it is. Once you are well past what is normal for a case like yours and the VA either goes silent or cannot tell you what the claim is waiting on, stop waiting. That is usually where the real trouble hides — an exam that came back twice, a records request that was never answered, a claimed condition that got dropped, or a file sitting in the wrong queue. Call the VA at 800-827-1000, ask specifically what the claim is waiting on and who it is assigned to, and write down the answer. If you cannot get a straight answer, or the answer tells you the exam is the problem, that is the moment to bring it to this office rather than sitting on it for another three months. Problems raised early get fixed inside the claim. Problems discovered in a denial letter get fixed on appeal, and that costs you a year.
Other things that control the clock
Six things decide how long you wait, and none of them are visible from the tracker alone.

The average is a moving number
Check it at the source, not second-hand
The VA publishes an average days-to-complete figure for disability claims that moves month to month; check the current number on the VA’s own claim status page rather than relying on any second-hand figure. In practice, most veterans see a decision somewhere between roughly three and eight months from the date the claim was filed, with the exam usually falling in the middle of that window.

The exam is not the last step
Three stages still sit in front of you
The exam is not the last step. The clock does not start at the exam and it does not stop there either — the claim still has to clear evidence gathering, the rating decision and authorization.

A returned exam is the invisible delay
The reason a tracker slides backward
A returned or clarified exam is the most common invisible delay, and it is why a tracker can slide backward. Expect some contact from the VA within 30 to 60 days of the exam. Past 60 days with nothing at all, call and ask specifically what the claim is waiting on.

30 to 60 days is a guide, not a deadline
A complex case can take 90 days or more
Thirty to sixty days is a rough average for a simple, single-issue claim — not a hard rule and not a ceiling. A claim with several conditions, a presumptive or toxic-exposure question, a returned exam, or missing records can easily take 90 days or more, and that alone does not mean anything is wrong. Watch whether the claim is still moving, not the calendar. Only when it stalls well past what is normal for a case like yours, and no one can tell you what it is waiting on, should you stop waiting — call 800-827-1000 and ask what the claim is waiting on and who it is assigned to.

Watch your status yourself — in one of three places
Weekly, not daily
Check your own status in one of three places: your VA.gov claim status page, the VA Health and Benefits mobile app, or by calling 800-827-1000. Check it weekly, not daily. And understand exactly what a status check can tell you: if a decision is posted in your account, it is live; if it is not posted, it is not ready. That is the whole rule. This is not something your representative or your attorney can speed up — we see the same thing you see, at the same time, and calling us to ask does not move it. Calling the VA to ask for an update does not move it either. Watch it yourself, weekly, and the moment a decision posts, bring it to us.

Your decision letter arrives — read it, then start the appeal clock
What to do the day it lands in your mailbox
The decision letter is the finish line of the claim and the starting line of the appeal — and the moment it arrives, a one-year clock starts running. Read it the same day. Find the combined rating, the percentage assigned to each condition, and the effective date, because the effective date controls how far back your back pay reaches. Then request a copy of your C&P exam report so you can see whether the rater used your real range-of-motion numbers or ignored the radiculopathy. If any part of the decision is wrong — a low rating, a denied condition, or a bad effective date — you have three appeal lanes, and you must choose one within one year of the date printed on the letter: a **Higher-Level Review (VA Form 20-0996)**, where a senior reviewer re-decides on the same evidence; a **Supplemental Claim (VA Form 20-0995)**, when you have new and relevant evidence such as a private DBQ or your own range-of-motion exam; or a **Board Appeal (VA Form 10182)** to a Veterans Law Judge. Miss that one-year deadline and the decision becomes final. You can still file again later, but you lose the original effective date — and that lost time is lost back pay you never get back. Bring the letter to this office before the year runs out and we will read it with you, line by line, at no cost.
07Remedy
How to report a bad exam
Where this exam goes wrong
The most common trap is the examiner writing that the veteran's sleep apnea is "less likely than not" caused by service because there is no in-service polysomnogram. Sleep studies are almost never performed in the military — you do not need an in-service diagnosis. What you need is evidence of **in-service symptoms** (snoring, daytime sleepiness, witnessed apneas documented by buddy statements) and a **post-service diagnosis confirmed by polysomnography**. If the examiner denies the nexus based solely on the absence of an in-service sleep study, that opinion is inadequate and should be challenged.

Write it down the moment you get to your car
Date, start time, end time, the examiner’s name and credentials, the vendor, every test that was performed, and every test that was not. A contemporaneous note written the same day is evidence. A memory reconstructed four months later is not.

Get the exam report and the questionnaire
Request a copy through VA.gov, through a written request to the Regional Office, or by calling 800-827-1000. You cannot challenge what you have not read. Compare it line by line against what actually happened in the room.

Name the defect specifically, with the citation
Never write "the exam was unfair." Write "no goniometer was used, contrary to 38 CFR §4.46" or "flare-ups were reported and not addressed, contrary to Sharp v. Shulkin" or "repetitive use testing was not performed, contrary to 38 CFR §4.40 and DeLuca." A specific, citable defect is what forces action.

Submit a statement asking for a new examination
VA Form 21-4138, Statement in Support of Claim, filed through VA.gov or mailed to the Evidence Intake Center. State the defect, cite the authority, and request a new or supplemental examination. Do this BEFORE the decision if the claim is still open — it is far easier than undoing a decision afterward.

Report examiner conduct separately
If the problem is behavior rather than methodology — you were rushed out, dismissed, never touched, or treated with hostility — file a complaint with the VA facility’s Patient Advocate, or with the vendor directly for a contract exam, and copy the Regional Office. Conduct complaints and adequacy challenges are two different tracks and you can run both.

If a decision has already issued, pick the right lane
A Higher-Level Review (VA Form 20-0996) argues the VA erred on the evidence it had — the right vehicle when the exam was inadequate on its face. A Supplemental Claim (VA Form 20-0995) is the vehicle when you are adding new and relevant evidence, such as your own private range-of-motion examination or a completed DBQ from your treating provider.

Put your own measurements on the table
A private examination with full goniometric measurements, or a DBQ completed by your own provider, creates a conflict in the evidence that the VA has to resolve — and under 38 CFR §3.102 reasonable doubt is resolved in your favor.
End of clinical section
Sleep Apnea (DC 6847) — DC 6847
See It Before You Sit In The Room
Sleep Apnea VA Disability Claims — What You Need to Know
Combat Craig
How to Win a Sleep Apnea Secondary Claim
Hill & Ponton
The Questions Veterans Actually Ask
Sleep Apnea (DC 6847) Claims — Frequently Asked Questions
Straight answers to the questions that decide sleep apnea (dc 6847) claims — the ratings, the separate evaluations, and the exam mistakes that cost veterans money.
Sleep Apnea (DC 6847) is evaluated under DC 6847. The scale runs across 4 rating levels, and the highest is 100%, which the VA assigns for: chronic respiratory failure with carbon-dioxide retention or cor pulmonale; or requires tracheostomy. Where your evaluation actually lands depends on how your exam and records document those criteria — not on how bad the condition feels on an average day.
Every condition in Sleep Apnea Claims
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