VA Diagnostic Code 6847: Sleep Apnea Syndromes — Rating Criteria, CPAP Service Connection, and C&P Exam Strategy
Sleep Apnea Is One of VA's Most Commonly Underrated Conditions
Our VA Claims reference includes DC 6847 complete rating criteria, nexus letter language for sleep apnea service connection, and 150+ diagnostic codes — one offline download.
Get the VA Claims Reference — $19 →30-day money-back guarantee — email [email protected] for a full refund if it doesn't help your claim prep.
What Is VA Diagnostic Code 6847?
DC 6847 covers Sleep Apnea Syndromes — obstructive, central, and mixed — under 38 CFR Part 4, Schedule for Rating Disabilities (§4.97, Diagnostic Code 6847). Sleep apnea is among the five most frequently service-connected conditions VA rates. It is also one of the conditions most commonly rated at the wrong level — specifically, veterans prescribed a CPAP machine are frequently rated at 0% or 30% when the CFR clearly specifies 50% for CPAP use.
DC 6847 Rating Levels: The Exact CFR Language
The 50% CPAP rule in plain language: If your treating physician or VA provider prescribed you a CPAP machine, you are entitled to a 50% rating under DC 6847. This is not discretionary — the CFR says "requires use of breathing assistance device." A CPAP prescription satisfies this criterion. Veterans rated at 0% or 30% who are CPAP users have been incorrectly rated and should file a Supplemental Claim or HLR.
Service Connection Pathways for Sleep Apnea
Sleep apnea cannot be claimed as a presumptive condition in most cases — it requires direct or secondary service connection. The two most common pathways:
Direct Service Connection
Sleep apnea diagnosed during active duty or with documented onset during service. Evidence includes:
- Sleep study ordered and positive during active duty
- CPAP machine prescribed while on active duty
- Service treatment records documenting snoring complaints, fatigue, or sleep-related medical visits
- Buddy statements from bunkmates documenting witnessed apnea episodes or extreme snoring during service
Secondary Service Connection
The most common path for veterans who were not diagnosed during service. Sleep apnea may be claimed as secondary to:
- PTSD (DC 9411): PTSD disrupts sleep architecture and is well-documented in medical literature as causally linked to sleep apnea onset and worsening. A nexus letter from a psychiatrist or sleep physician connecting PTSD-related sleep disruption to obstructive sleep apnea is strong evidence.
- TBI (DC 8045): Traumatic brain injury affects the neurological regulation of breathing during sleep. Central and mixed sleep apnea in TBI veterans is well-supported in the medical literature.
- Weight gain secondary to another service-connected condition: If a service-connected condition (injury, medication side effects) caused significant weight gain that contributed to obstructive sleep apnea, a secondary claim is viable under 38 CFR §3.310.
- Sinusitis or rhinitis (secondary to service-connected respiratory conditions): Nasal obstruction secondary to service-connected rhinitis can contribute to obstructive sleep apnea.
VA's common denial language for sleep apnea: VA frequently denies sleep apnea claims with language like "sleep apnea is a common condition not unique to veterans" or "there is no nexus between sleep apnea and military service." These denials are often incorrect when a proper nexus letter connecting sleep apnea to a service-connected condition (like PTSD or TBI) is submitted. A denial of sleep apnea based on lack of nexus is contestable with an IMO from a qualified sleep physician.
The Sleep Study and C&P Exam Process
To claim DC 6847, you generally need a polysomnography (PSG) — an overnight sleep study — that confirms the diagnosis and quantifies severity. 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
All three severity levels can qualify for the 50% rating if CPAP is required — the AHI is used for diagnosis, not for determining the rating percentage. A veteran with mild sleep apnea (AHI 8) prescribed a CPAP is still rated 50% under DC 6847.
At your C&P exam, bring:
- Your sleep study report (PSG results)
- Your CPAP prescription or equipment documentation
- Any compliance data from your CPAP device (most modern CPAPs record usage via SD card or app)
- Treatment records from your sleep physician or VA provider documenting the CPAP requirement
Buddy Statements for Sleep Apnea Claims
If you were not diagnosed during service, buddy statements from people who observed your sleep during deployment or barracks can corroborate the in-service onset of symptoms:
- Statements from fellow service members who witnessed your snoring or witnessed you stop breathing during sleep
- Statements from a spouse or partner documenting symptoms that began or worsened after service
- Statements documenting your complaints of fatigue or poor sleep quality during your service period
Buddy statements are submitted on VA Form 21-10210 (Lay/Witness Statement) and are treated as lay evidence under the benefit-of-the-doubt rule (38 CFR §3.303).
Secondary Conditions Related to Sleep Apnea
Veterans with service-connected sleep apnea can file secondary claims for conditions caused or worsened by untreated or poorly-treated sleep apnea:
- Hypertension (DC 7101): Obstructive sleep apnea is a well-documented cause of secondary hypertension
- Depression / Major Depressive Disorder: Chronic sleep deprivation from OSA is causally linked to depression onset and severity
- Atrial fibrillation: OSA is a risk factor for AF; secondary claims are viable with a cardiology IMO
- Cognitive impairment: Chronic sleep fragmentation affects memory and executive function
Complete DC 6847 Criteria + Secondary Claim Templates
The VA Claims reference includes DC 6847 complete criteria, CPAP nexus language, secondary claim documentation for PTSD-to-sleep-apnea and TBI-to-sleep-apnea, and 150+ other diagnostic codes — all offline, zero PHI uploaded.
Get the VA Claims Reference — $19 →30-day money-back guarantee — email [email protected] for a full refund if it doesn't help your claim prep.