Chronic sinusitis, allergic rhinitis, and other upper and lower respiratory conditions are common in veteran populations — and their connection to military service is often stronger than veterans realize. Environmental exposures during deployment, burn pit smoke, industrial chemicals, and even the close-quarters living conditions of military service all contribute to respiratory disease.
Conditions Commonly Claimed
- Chronic sinusitis. Persistent inflammation of the sinuses lasting 12 weeks or more, causing facial pressure, nasal congestion, drainage, and reduced sense of smell.
- Allergic rhinitis. Chronic nasal inflammation triggered by environmental allergens, often worsened by military exposures that sensitized the airway.
- Asthma. Reactive airway disease that may develop or worsen during service due to environmental exposures.
- Chronic obstructive pulmonary disease (COPD). Progressive lung disease linked to smoking (often started during service) and occupational inhalation exposures.
- Constrictive bronchiolitis. A specific form of small-airway disease identified in veterans exposed to burn pit emissions and sulfur mine fires in Iraq.
The Exposure Connection
Military service involves airborne hazard exposures that most civilians never encounter. The nexus opinion must connect the veteran's specific exposures to their respiratory condition:
- Burn pit exposure. Open-air burn pits were used throughout Iraq and Afghanistan to dispose of waste including plastics, medical materials, batteries, electronics, and human waste. The resulting smoke contained dioxins, volatile organic compounds, particulate matter, and heavy metals — all documented respiratory irritants and carcinogens.
- Sand and dust. Desert deployments expose service members to fine particulate matter that penetrates deep into the lungs. Prolonged exposure causes chronic airway inflammation.
- Industrial chemicals. Vehicle exhaust, JP-8 jet fuel, solvents, paint, and other occupational chemicals encountered in motor pools, flight lines, and maintenance facilities.
- Sulfur mine fire (Mishraq, 2003). A massive sulfur dioxide release that exposed thousands of service members to toxic levels of sulfur dioxide, causing acute respiratory injuries and long-term respiratory disease.
- Close-quarters living. Barracks, ships, and field conditions promote respiratory infections that can trigger or worsen chronic sinusitis and reactive airway disease.
What the Nexus Letter Should Establish
- The veteran's specific environmental and occupational exposures during service.
- Deployment history and locations relevant to known airborne hazards.
- The current respiratory diagnosis with supporting clinical documentation (CT sinus, pulmonary function tests, imaging).
- The medical mechanism linking the exposure to the condition.
- The PACT Act provisions relevant to the veteran's exposure and condition.
- Peer-reviewed literature on military respiratory exposures.
The Key Point
The PACT Act significantly expanded VA coverage for respiratory conditions linked to toxic exposures. Veterans who were previously denied for sinusitis, asthma, or other respiratory conditions related to burn pit exposure should consider refiling. The legal and medical landscape has shifted in their favor.
Continue Reading: Respiratory Claims in Detail
The PACT Act and Respiratory Conditions
The Sergeant First Class Heath Robinson Honoring our Promise to Address Comprehensive Toxics Act (PACT Act) of 2022 was the most significant expansion of VA benefits for toxic-exposed veterans in decades. For respiratory conditions, the key provisions include:
- Conceded toxic exposure. The PACT Act creates a presumption of toxic exposure for veterans who served in certain locations during specific time periods, including Southwest Asia (1990-present), Afghanistan, and other locations where burn pits or other airborne hazards were present. This eliminates the need to individually prove exposure.
- Presumptive conditions. Several respiratory conditions are now presumptively service-connected for eligible veterans, meaning the veteran only needs to establish qualifying service and a current diagnosis — no nexus opinion is strictly required.
- Expanded eligibility. Veterans who were previously denied toxic exposure claims can refile as Supplemental Claims with the PACT Act as new and relevant evidence.
Even for conditions on the presumptive list, a nexus letter can strengthen the claim when the diagnosis is ambiguous, when the veteran's qualifying service period is borderline, or when the claim involves a condition not on the presumptive list but still related to toxic exposure.
Chronic Sinusitis: Diagnosis and Documentation
For VA purposes, chronic sinusitis is typically documented by CT imaging of the sinuses, which demonstrates mucosal thickening, opacification, or air-fluid levels in one or more sinus cavities. The VA rates sinusitis under Diagnostic Code 6510-6514 based on the frequency and severity of incapacitating and non-incapacitating episodes:
- 0%: Detected by X-ray only with no symptoms.
- 10%: One or two incapacitating episodes per year requiring prolonged antibiotic treatment, or three to six non-incapacitating episodes per year with headaches, pain, and purulent discharge.
- 30%: Three or more incapacitating episodes per year requiring prolonged antibiotic treatment, or more than six non-incapacitating episodes per year.
- 50%: Following radical surgery with chronic osteomyelitis, or near-constant sinusitis with associated symptoms after repeated surgeries.
The nexus letter should document the frequency and severity of sinus episodes using language that maps to these criteria, and should reference the CT findings that confirm the diagnosis.
Allergic Rhinitis: Often Overlooked
Allergic rhinitis is frequently underrated or overlooked in VA claims, but it can be a significant standalone condition and also contributes to sinusitis, sleep apnea, and other conditions. Military service can cause or worsen allergic rhinitis through:
- New allergen exposure. Deployment to geographic regions with different vegetation, dust, and environmental allergens can sensitize the airway in individuals who had no prior allergy history.
- Irritant-induced rhinitis. Exposure to smoke, chemical fumes, and particulate matter can trigger non-allergic rhinitis that is clinically indistinguishable from allergic rhinitis.
- Worsening of pre-existing allergies. Environmental exposures during service can worsen mild pre-existing allergic rhinitis into a chronic, debilitating condition.
The VA rates allergic rhinitis under Diagnostic Code 6522. A 10% rating requires either polyps or greater than 50% obstruction of nasal passages on both sides or complete obstruction on one side without polyps. A 30% rating requires the presence of polyps.
Asthma and Reactive Airway Disease
New-onset asthma in a veteran who had no pre-service respiratory history is a strong candidate for service connection when military exposures are documented. The nexus opinion should address:
- The absence of asthma diagnosis prior to service (review enlistment physical and pre-service medical records).
- The specific in-service exposures relevant to asthma development (burn pits, dust, chemicals).
- The temporal relationship between exposure and symptom onset.
- Current pulmonary function testing (PFTs) demonstrating obstructive airway disease with bronchodilator response.
- The medical literature on occupational and exposure-related asthma in military populations.
The VA rates asthma under Diagnostic Code 6602 based on PFT results (FEV1, FEV1/FVC ratio) and the level of medication required for control. Veterans on daily inhaled corticosteroids generally qualify for at least a 30% rating; those on systemic corticosteroids may qualify for 60% or 100%.
Pulmonary Function Testing
PFTs are central to the evaluation and rating of respiratory conditions. The nexus letter should reference PFT results and explain their significance:
- FEV1 (Forced Expiratory Volume in 1 second): The volume of air a person can forcefully exhale in one second. Reduced FEV1 indicates obstructive airway disease.
- FVC (Forced Vital Capacity): The total volume of air a person can forcefully exhale. Reduced FVC may indicate restrictive lung disease.
- FEV1/FVC ratio: Helps distinguish obstructive from restrictive disease. A low ratio indicates obstruction.
- DLCO (Diffusing Capacity): Measures gas exchange efficiency. Reduced DLCO suggests parenchymal lung disease or vascular abnormality.
- Bronchodilator response: Improvement after inhaling a bronchodilator supports a diagnosis of asthma (reversible obstruction) as opposed to COPD (largely irreversible).
If available, comparing current PFTs to any pulmonary function testing done during service can demonstrate a measurable decline attributable to military exposures.