VA Ratings for Asthma: Criteria, % & How It Works

Note: This article is intended for general educational purposes only and does not constitute legal advice. Just 4 Veterans Enterprise LLC provides coaching and educational services only

The VA rating for asthma is based upon two measurements, the Forced Expiratory Volume (FEV-1) and the FEV-1/FVC ratio (Forced Vital Capacity), with rating levels assigned at 10%, 30%, 60%, and 100% under Diagnostic Code 6602 of 38 CFR Part 4.

It is important to note that obtaining a disability rating for asthma requires an established service connection and an explanation of how it impacts their daily life. For many veterans, that process can be difficult to navigate alone. Understanding what the VA looks for — and how to present your condition accurately — is where informed preparation makes a real difference. Connecting with a disability benefits education service (DBES) and a VA coach early in the process can make a significant difference in how your claim is developed and rated.

What is Asthma?

Asthma is a chronic respiratory condition in which your airways are narrowed and inflamed, causing difficulty breathing.

While asthma affects millions of Americans, veterans face a heightened risk due to the range of respiratory hazards encountered during military service — particularly those who served in Southwest Asia and the Persian Gulf, where chemical and airborne hazard exposure is significantly elevated. Chronic asthma is a disability under VA guidelines when it is service-connected and sufficiently impacts daily functioning.

Common Symptoms of Asthma

Veterans with service-connected asthma typically experience some combination of the following:

Shortness of breath, especially during physical activity or at night
Chest tightness or pressure
Wheezing — a high-pitched sound when exhaling
Persistent coughing, particularly at night

Symptoms can range from mild and manageable to severe and debilitating. Even in milder forms, asthma can limit physical endurance, disrupt sleep, requiring use of a quick-relief inhaler more often, and worsening over time, especially without proper treatment.

Causes of Asthma in Veterans

Military service exposes veterans to a range of respiratory hazards that can trigger or worsen asthma. The most commonly cited contributors include:

Burn pit smoke and airborne toxins: Open-air burn pits used to dispose of waste in Iraq, Afghanistan, and other deployment locations emitted a toxic mix of chemicals and particles that have been directly linked to respiratory conditions.
Dust and airborne particulates: Sand, dust storms, and poor air quality in desert environments cause chronic irritation to the airways over time.
Chemical exposure: Fuel exhaust, industrial solvents, and weapons smoke all contribute to airway inflammation.
Environmental hazards during deployment: Mold, asbestos, and other hazardous materials in aging infrastructure at overseas bases present additional risk factors.

Research presented at a 2025 scientific meeting of the American College of Allergy, Asthma, and Immunology found that deployed veterans had a significantly higher risk of developing asthma compared to their non-deployed counterparts a figure that underscores how serious this issue is for the veteran population.

Is Chronic Asthma a Disability?

Yes. Chronic asthma is recognized as a VA disability when it is service-connected. Veterans don’t need to be completely incapacitated to qualify; even those managing the condition with daily medication may be eligible for a compensable rating. Under the PACT Act, veterans with qualifying service may be entitled to a presumptive service connection.

How the VA Evaluates Asthma

The VA rates VA disability for asthma under 38 CFR Part 4, Diagnostic Code 6602 (Asthma, bronchial). Under this code, the disability rating for asthma is determined based on a combination of factors:

Results from pulmonary function tests (primarily FEV-1 and FEV-1/FVC ratio)
Frequency of asthma attacks
How often a veteran requires medical visits or hospitalization
Type and frequency of medications required to manage the condition

The VA uses this multi-factor approach because asthma severity can vary considerably from veteran to veteran, and test results alone don’t always capture the full clinical picture. Importantly, the VA applies whichever criterion — test results, attack frequency, or medication use — results in the highest applicable rating.

What is the VA Disability Rating for Asthma?

The VA rates asthma at four levels: 10%, 30%, 60%, or 100%, based on pulmonary function test results (FEV-1), frequency of attacks, hospitalization history, and medication usage. The VA applies whichever criterion results in the highest applicable rating.

Asthma VA Ratings Percentages Explained

The table below shows all criteria for each rating level

Rating	FEV-1 Criteria	FEV-1/FVC Ratio	Attack Frequency / Hospitalization	Medication Criteria
10%	71–80% predicted	71–80% predicted	—	Intermittent inhalational or oral bronchodilator therapy
30%	56–70% predicted	56–70% predicted	—	Daily inhalational or oral bronchodilator therapy, OR daily inhalational anti-inflammatory medication
60%	40–55% predicted	40–55% predicted	≥ Monthly physician visits for required care of exacerbations	Intermittent (≥ 3×/year) systemic (oral or parenteral) corticosteroid courses
100%	< 40% predicted	< 40% predicted	> 1 attack/week with episodes of respiratory failure	Daily use of systemic (oral or parenteral) HIGH-DOSE corticosteroids or immunosuppressive medications

It is important to note that the VA compensation for asthma would depend on the highest applicable level, meaning if your medication use qualifies you for a higher rating than your test results alone would suggest, the VA should apply the more favorable criterion.

Evidence the VA Uses to Evaluate Asthma

When evaluating an asthma VA claim, the VA looks at the following categories of evidence:

Pulmonary function test results (spirometry)
Medical records documenting frequency and severity of asthma attacks
Records of prescriptions and medications, including inhalers and corticosteroids
Physician notes from treatment visits and hospitalizations
Compensation and Pension (C&P) exam findings

Understanding Pulmonary Function Tests

The Pulmonary Function Test (PFT) is the cornerstone of VA asthma evaluations. The two key measurements are the following:

FEV1 (Forced Expiratory Volume in 1 Second)

This measures how much air a veteran can forcefully exhale in one second. It is expressed as a percentage of the predicted value for someone of similar age, height, and sex. A lower FEV1 percentage indicates greater airflow restriction and more severe asthma.

FEV1/FVC Ratio (Forced Vital Capacity)

FVC measures the total volume of air exhaled after a full deep breath. The ratio of FEV-1 to FVC reveals the degree of obstructive impairment. A reduced ratio is a key indicator of obstructive lung disease, which includes asthma.

Practical Tip for your PFT: Veterans should ensure their pulmonary function test is conducted while their asthma is in its symptomatic state, not on a particularly good day, so the results accurately reflect their functional limitations. Bronchodilators should not be used before the test unless instructed otherwise, as this can artificially elevate results.

Medications That Affect Asthma Ratings

The type and frequency of medications a veteran uses to manage asthma are direct factors in determining the VA compensation for asthma. The VA specifically considers the following:

Rescue inhalers (short-acting bronchodilators): Used as needed; associated with the 10% rating level when used intermittently.
Daily inhaled corticosteroids or daily bronchodilators: Use of these maintenance medications supports a 30% rating.
Systemic (oral) corticosteroids: Long-term or frequent use of medications like prednisone signals more severe disease and can support higher ratings.
Frequent hospitalizations or intensive management: Patterns of emergency care or inpatient treatment are markers for the 60% and 100% rating levels.

Veterans should keep detailed records of all prescriptions and pharmacy refills. Medication logs and pharmacy records are powerful supporting evidence because they document the ongoing severity of the condition over time — independent of any single exam day. A gap in medication records is one of the most common causes of underrating.

C&P Exam for Asthma

The Compensation and Pension (C&P) exam is a critical step in the VA rating for asthma processes.

The examiner — typically a VA physician or contracted provider — will review your medical history, ask about symptom frequency and severity, and may conduct or review pulmonary function testing. The examiner’s findings directly inform the rating decision.

Key things veterans should communicate clearly during a C&P exam:

How often asthma symptoms occur and what triggers them
How many times they have visited an emergency room or been hospitalized for asthma
What medications they take daily and how often they use a rescue inhaler
How asthma affects their ability to work, exercise, sleep, and perform daily activities

Veterans should never downplay symptoms during the exam. Describe your worst days, not your best. The examiner’s assessment directly influences the rating decision, so accuracy and completeness matter.

How J4VE DBES Can Prepare Veterans for Asthma Claims

Understanding the VA disability rating for asthma is one thing — building a claim that accurately captures your condition is another. Just 4 Veterans Enterprise’s disability benefits education service and professional coaching and consultation services are structured to walk veterans through the entire process with clarity and confidence.

Our coaches can help you understand:

Which evidence is most critical for your specific asthma claim
How to interpret your pulmonary function test results in the context of the DC 6602 rating criteria
How to prepare for your C&P exam so that your symptoms are accurately and completely represented
Whether the PACT Act presumptive pathway may apply to your situation
How the single-rating rule under 38 CFR §4.96(a) may affect a claim involving multiple respiratory conditions

A knowledgeable coach can help veterans avoid common mistakes that lead to underpayments and denials.

Whether you’re filing an initial asthma VA claim, seeking an increased rating, or trying to understand why your VA claim for asthma was rated lower than expected, our team is here to educate and coach you every step of the way.

Book a free strategy call to connect directly with our veteran coaches.