Quick Summary

Respiratory disabilities — including asthma, chronic obstructive pulmonary disease (COPD), chronic bronchitis, and lung disease — are among the most common VA disability claims, particularly for veterans exposed to burn pits, Agent Orange, airborne hazards during the Gulf War, and other toxic environments during military service. This guide explains how the VA rates respiratory conditions, how to establish service connection (including presumptive pathways), and what evidence you need to build a strong claim.

Understanding Respiratory Conditions in VA Disability

The VA evaluates respiratory disabilities under the ratings schedule found in 38 CFR § 4.97 and related diagnostic codes. The most common respiratory conditions claimed by veterans include:

• Asthma: A chronic inflammatory disease of the airways causing episodes of wheezing, breathlessness, chest tightness, and coughing. Rated under Diagnostic Code 6602.
• Chronic Obstructive Pulmonary Disease (COPD): A progressive lung disease that includes chronic bronchitis and emphysema. Causes airflow limitation that is not fully reversible. Rated under DC 6600 (bronchitis) or DC 6604 (emphysema).
• Chronic Bronchitis: A long-term inflammation of the bronchial tubes causing mucus production and persistent cough. Part of the COPD spectrum. Rated under DC 6600.
• Emphysema: A condition where the air sacs (alveoli) in the lungs are damaged, reducing the surface area available for gas exchange. Causes shortness of breath. Rated under DC 6604.
• Restrictive Lung Disease: A group of conditions that limit lung expansion, including pulmonary fibrosis and sarcoidosis. Rated under DC 6822 or the appropriate specific code.
• Pulmonary Fibrosis: Scarring of lung tissue that progressively reduces lung function. Can be associated with toxic exposures. Rated based on severity of functional impairment.
• Sarcoidosis: An inflammatory disease that produces granulomas, often affecting the lungs and lymph nodes. Rated under DC 6822.

The VA rates respiratory conditions primarily based on how well the lungs function — specifically measured through pulmonary function tests (PFTs), particularly the Forced Expiratory Volume in 1 second (FEV-1) and Forced Vital Capacity (FVC). The worse your lung function, the higher the rating.

How to Establish Service Connection for Respiratory Conditions

To receive VA disability compensation for a respiratory condition, you must prove three elements:

1. Current diagnosis. A confirmed diagnosis of a respiratory condition from a qualified medical provider (VA or private). Pulmonary function testing is typically required.
2. In-service event or exposure. Something during your military service caused or contributed to the development of the respiratory condition.
3. Nexus (medical link). A medical opinion connecting your current respiratory condition to your in-service event or exposure.

Direct Service Connection

You can establish direct service connection if you can show that the respiratory condition began during service or was caused by something that happened during service. This requires:

• Pulmonary function test results confirming the diagnosis and severity
• Evidence of in-service onset or an in-service event (e.g., exposure to dust, fumes, smoke, burn pits, or industrial chemicals)
• A medical nexus opinion linking the diagnosis to the in-service exposure

Presumptive Service Connection

The VA recognizes certain exposures as presumptively connected to respiratory conditions. If you served in a qualifying location during qualifying time periods, you may not need to prove a medical nexus:

• Open Burn Pit Exposure (PACT Act): The PACT Act significantly expanded coverage for veterans exposed to burn pits, other open-air combustion sources, and airborne hazards during military service. Respiratory conditions linked to burn pit exposure include asthma (for qualifying Southwest Asia and certain other veterans), chronic bronchitis, COPD, and sinusitis.
• Agent Orange (Vietnam veterans): While Agent Orange exposure is not currently presumptively linked to respiratory conditions, veterans may still pursue claims with a strong medical nexus connecting their condition to herbicide exposure during service in Vietnam, the Korean DMZ, or other qualifying locations.
• Gulf War Airborne Hazards: Veterans who served in Southwest Asia (Iraq, Kuwait, Saudi Arabia, Oman, Qatar, UAE, Bahrain) and Afghanistan, Djibouti, Syria, Uzbekistan, and certain other areas may qualify for presumptive service connection for respiratory conditions linked to airborne hazards, including dust, particulate matter, and pollution.
• Particulate Matter Exposure: The VA recognizes that exposure to particulate matter — including from burn pits, desert dust, and industrial emissions — can cause or aggravate respiratory disease. The PACT Act added numerous respiratory conditions to the list of conditions presumed connected to such exposures.

Presumptive Service Connection Under the PACT Act

The PACT Act, signed into law in 2022, is the largest veterans' healthcare and benefits expansion in decades. It added the following respiratory conditions as presumptive for veterans who served in qualifying locations during qualifying time periods:

• Asthma: If diagnosed after service and you served in a qualifying location during qualifying time periods (including post-9/11 Southwest Asia, Afghanistan, and other specified areas).
• Chronic Bronchitis: Same presumptive eligibility as asthma.
• Chronic Obstructive Pulmonary Disease (COPD): Same presumptive eligibility.
• Emphysema: Same presumptive eligibility.
• Pulmonary Fibrosis: Same presumptive eligibility.
• Restrictive Lung Disease: Same presumptive eligibility.
• Granulomatous Disease of the Lung: Same presumptive eligibility.
• Interstitial Lung Disease: Same presumptive eligibility.

Key reference: VA PACT Act Information | 38 CFR § 3.309 — Presumptions

Secondary Service Connection

Respiratory conditions can also be claimed as secondary to other service-connected disabilities. Common secondary pathways include:

• Heart conditions: Heart failure can cause fluid buildup in the lungs, leading to respiratory symptoms.
• Postnasal drip and sinusitis: Chronic sinus conditions can lead to chronic bronchitis or contribute to asthma.
• GERD (Gastroesophageal Reflux Disease): Acid reflux can irritate the airways and worsen or contribute to respiratory conditions, particularly asthma and chronic cough.
• Mental health conditions: PTSD and anxiety can worsen respiratory symptoms, though this connection requires careful medical documentation.

VA Disability Ratings for Respiratory Conditions

Respiratory conditions are rated primarily based on objective measurements of lung function — specifically the results of pulmonary function tests (PFTs). The VA periodically adjusts rating criteria, but the current framework is as follows. Ratings are based on the Forced Expiratory Volume in 1 second (FEV-1) as a percentage of predicted value:

General Rating Formula for Restrictive and Obstructive Lung Disease

Asthma (Diagnostic Code 6602)

Asthma is rated based on the frequency and severity of attacks, the treatment required, and how the condition limits your daily life:

• 100%: FEV-1 less than 40% predicted; attacks require hospitalization or emergency care several times per year; continuous or near-continuous systemic (oral) corticosteroids or high-dose inhaled corticosteroids plus bronchodilators
• 60%: FEV-1 40–55% predicted; attacks require hospitalization or emergency care at least once per month; daily systemic corticosteroids or high-dose inhaled corticosteroids
• 30%: FEV-1 56–70% predicted; attacks requiring treatment by a physician at least once per week; inhaled corticosteroids plus bronchodilators
• 10%: FEV-1 71–80% predicted; intermittent symptoms requiring brief courses of inhaled bronchodilators; able to perform most activities without limitation

Chronic Bronchitis (Diagnostic Code 6600)

Chronic bronchitis is rated similarly to the general restrictive/obstructive formula above, based on FEV-1 and FVC measurements, with additional consideration for the frequency of productive cough and episodes of acute bronchitis or pneumonia.

Emphysema (Diagnostic Code 6604)

Emphysema is rated under the same pulmonary function test criteria. A 100% rating may also be assigned if the veteran requires supplemental oxygen therapy during exertion, or has a diffusion capacity (DLCO) of less than 10% of predicted, or shows severe hyperinflation.

Sarcoidosis (Diagnostic Code 6822)

Sarcoidosis is rated based on the organs affected and the severity of symptoms. When primarily affecting the lungs, it is rated under the respiratory schedule. When it affects other organs (eyes, heart, nervous system, liver, kidneys, etc.), those manifestations are rated separately.

Important note: The VA rates respiratory conditions based on objective findings (PFT results), not just symptoms. Even if you feel your breathing is significantly impaired, the VA will look at your test results. This is why it's critical to get current pulmonary function testing and ensure the tests are performed properly. Request that your PFTs be done at a VA facility or a qualified pulmonary lab, and ask that the technician perform three acceptable maneuvers to ensure accuracy.

Key reference: 38 CFR § 4.97 — Schedule of Ratings, Respiratory System

Required Evidence and Testing

Building a strong respiratory disability claim requires specific evidence. Here's what you need:

Pulmonary Function Tests (PFTs)

PFTs are the cornerstone of a respiratory disability claim. The VA will rely heavily on these tests to determine your rating. Key measurements include:

• FEV-1 (Forced Expiratory Volume in 1 second): The amount of air you can forcefully exhale in one second. This is the single most important measurement for rating purposes.
• FVC (Forced Vital Capacity): The total amount of air you can forcefully exhale after taking the deepest breath possible.
• FEV-1/FVC Ratio: Helps distinguish between obstructive (low ratio) and restrictive (normal or high ratio with low total volume) lung disease.
• DLCO (Diffusing Capacity): Measures how well oxygen passes from the lungs into the blood. Important for emphysema and fibrosis.

Other Evidence to Gather

• Medical records: Diagnosis, treatment history, medication prescriptions (inhalers, nebulizers, oxygen), hospitalizations
• Service records: Documentation of exposure to airborne hazards, burn pits, desert dust, industrial chemicals, or other respiratory irritants during service
• Post-service medical records: Ongoing treatment, progression of the condition, specialist visits (pulmonologist, allergist)
• Nexus letter: A medical opinion from a physician linking your respiratory condition to your in-service exposure
• Statements from family members: Describing how your breathing problems affect daily life, sleep, and ability to participate in activities
• Employment records: If your respiratory condition has caused you to miss work, change jobs, or reduce hours

How to File a VA Disability Claim for Respiratory Conditions

Step 1: Gather Your Evidence

• Obtain a current diagnosis from a medical provider (preferably a pulmonologist)
• Get current pulmonary function test results (within the last 12 months if possible)
• Document your in-service exposure (service records, unit history, buddy statements)
• Collect treatment records showing ongoing management of your condition
• Obtain a nexus opinion if not filing under a presumptive condition

Step 2: File Your Claim

You can file through:

• VA.gov: File Form 21-526EZ online. Upload all supporting documents directly to your application.
• With a VSO: Veterans Service Organizations (DAV, VFW, American Legion) can help you file at no cost and ensure your claim is complete.
• By mail: Send completed Form 21-526EZ to the appropriate VA regional office.
• In person: Visit a VA regional office or Vet Center for assistance.

Step 3: Attend Your C&P Exam

The VA will likely schedule a Compensation & Pension exam, which for respiratory claims typically includes:

• A review of your medical history
• Pulmonary function testing (a full spirometry with bronchodilator challenge)
• A physical examination of your chest and breathing
• An opinion on the nexus between your condition and service (if needed)

Tips for a good C&P exam:

• Bring a list of all respiratory medications (inhalers, nebulizers, oral steroids, oxygen prescriptions)
• Bring your most recent PFT results
• Be honest about your worst days — not your best. The VA rates based on the overall impact of the condition, not just how you feel on a good day.
• If you use oxygen, bring documentation of when and how often you need it
• Describe how your breathing problems affect daily activities — climbing stairs, walking, working, exercising, sleeping

Step 4: Monitor Your Claim

After filing, you can track your claim status through VA.gov or the VA app. Typical processing times for respiratory claims range from 3 to 6 months, though complex claims with secondary conditions may take longer. Respond promptly to any VA requests for additional information.

Secondary Conditions Associated with Respiratory Disease

Respiratory conditions can lead to or aggravate other health problems. Filing for secondary conditions can increase your combined disability rating and compensate you for the full impact of your service-connected disability.

Common Secondary Conditions

• Pneumonia: Recurrent pneumonia can be secondary to chronic lung disease. Each episode may warrant a temporary 100% rating during treatment.
• Cor Pulmonale (Right Heart Failure): Chronic lung disease can strain the right side of the heart, leading to heart failure. This is a serious condition that may warrant a separate heart condition rating.
• Depression: Chronic respiratory conditions often cause depression due to limitations on daily activities, sleep disturbance, and reduced quality of life.
• Sleep Apnea: Respiratory insufficiency can contribute to or worsen sleep-disordered breathing.
• Osteoporosis: Long-term corticosteroid use (common in asthma and COPD management) can lead to bone density loss and osteoporosis.

To claim a secondary condition, you'll need a medical opinion stating that the secondary condition is "caused by" or "aggravated by" your service-connected respiratory disability. This is often established through a nexus letter from your treating physician or a C&P examiner.

Common Mistakes to Avoid

• Not getting current PFTs. The VA relies on objective lung function data. If your last PFT was years ago, the VA may not have an accurate picture of your current condition. Get updated testing before filing or as part of your claim.
• Filing without documenting in-service exposure. Even for presumptive conditions under the PACT Act, you need to establish that you served in a qualifying location during qualifying time periods. Gather your service records showing unit assignment and deployment history.
• Underreporting symptoms. Don't minimize how your breathing problems affect your life. The VA rates based on functional impact — if you can't walk a flight of stairs without stopping, or if you miss family events because you can't breathe, say so.
• Not claiming secondary conditions. Many veterans file only for the primary respiratory condition and miss out on significant additional compensation for heart problems, depression, sleep apnea, and other related conditions.
• Missing the medication evidence. Your medication history is powerful evidence. Document every inhaler, nebulizer treatment, course of oral steroids, and oxygen prescription. These show the VA the ongoing severity of your condition.
• Not appealing a low rating. If you receive a rating that doesn't reflect the severity of your condition, you have the right to appeal. Consider requesting a Higher-Level Review or filing a supplemental claim with additional evidence.

Current VA Compensation Rates for Respiratory Conditions

Monthly compensation amounts depend on your rating percentage and number of dependents. The VA periodically adjusts these rates. Here are the base rates for a veteran with no dependents:

• 10%: $175.51/month
• 30%: $545.43/month
• 60%: $1,319.65/month
• 100%: $3,831.41/month

If you have secondary respiratory conditions or other service-connected disabilities, your combined rating could be significantly higher. For example, a veteran with a 60% COPD rating who also develops cor pulmonale rated at 30% would have a combined rating of 70% (rounded to the nearest 10%), resulting in a 70% combined rating.

Note: Veterans rated 30% or higher who have dependents (spouse, children, dependent parents) receive additional compensation. Check the current VA compensation rates for complete tables.

Key Resources

• VA PACT Act Information
• Burn Pit Exposure and VA Benefits
• Current VA Disability Compensation Rates
• 38 CFR § 4.97 — Schedule of Ratings, Respiratory System
• 38 CFR § 3.309 — Presumptions
• VA Online Application (VONAPP)
• Get Help Filing a Claim (VSO Locator)

Frequently Asked Questions

Is asthma a presumptive condition for burn pit exposure?

Yes. Under the PACT Act, asthma is a presumptive condition for veterans who were exposed to burn pits, other open-air combustion sources, and airborne hazards during military service in qualifying locations during qualifying time periods. This means you do not need to prove a medical nexus if you served in a qualifying location and have been diagnosed with asthma.

Can I get a 100% rating for COPD?

Yes, it is possible. A 100% rating for COPD is assigned when the FEV-1 is less than 40% of predicted, or when the condition is so severe that the veteran requires continuous oxygen therapy, is bedridden, or experiences frequent hospitalizations for respiratory failure or exacerbations. Most veterans with COPD receive ratings in the 10%–60% range.

Can I claim respiratory conditions as secondary to another disability?

Yes. Respiratory conditions can be claimed as secondary to other service-connected disabilities. For example, heart failure can cause pulmonary edema (fluid in the lungs), GERD can aggravate asthma, and chronic sinusitis can contribute to chronic bronchitis. You'll need a medical nexus opinion connecting your respiratory condition to your primary service-connected disability.

Do I need to use a specific type of pulmonary function test?

The VA requires full spirometry performed according to American Thoracic Society (ATS) standards. The test should include both pre- and post-bronchodilator measurements. If you have a restrictive pattern, the VA may also order lung volume measurements and diffusion capacity (DLCO) testing. Make sure your test results include both the raw data and the percentage of predicted values.

What if my respiratory condition was diagnosed after service?

That does not prevent you from filing a claim. Many respiratory conditions develop years after service. What matters is establishing the connection between your service (in-service exposure) and the development of the condition. For presumptive conditions under the PACT Act, the timing of diagnosis does not matter — as long as you have a current diagnosis and qualifying service.

How often can I request an increased rating for my respiratory condition?

You can request an increased rating at any time if your condition has worsened. However, the VA generally requires evidence that the condition has materially worsened since the last rating. It's recommended to have updated PFT results that show a measurable decline in lung function before filing for an increase. If your rating has been in place for 5 years or more, the VA is less likely to propose a reduction.