🫁 RespiratoryLower AirwayDC 6602

Asthma

Chronic inflammatory airway disease causing wheezing, shortness of breath, chest tightness, and coughing — strongly linked to burn pit exposure, deployment environments, and PACT Act eligibility.

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VA Rating Tiers

100%
FEV-1 less than 40% of predicted, or requiring daily use of high-dose systemic corticosteroids
60%
FEV-1 of 40-55% of predicted, or requiring daily use of inhaled or oral systemic corticosteroids
30%
FEV-1 of 56-70% of predicted, or requiring daily bronchodilator therapy or anti-inflammatory inhalants
10%
FEV-1 of 71% or higher with daily medication required
0%
Symptomatic but not meeting threshold for 10% — service connection still matters for secondary conditions

Rating Notes

  • ›100%: FEV-1 less than 40% of predicted — or requiring daily systemic corticosteroids. DC 6602.
  • ›60%: FEV-1 40–55% of predicted — or requiring daily inhaled or oral corticosteroids. DC 6602.
  • ›30%: FEV-1 56–70% of predicted — or requiring daily bronchodilator or anti-inflammatory therapy. DC 6602.
  • ›10%: FEV-1 71% or higher with continuous medication required to control symptoms. DC 6602.
  • ›0%: Symptomatic but below medication threshold — service connected but non-compensable.
  • ›DC 6602 rates asthma primarily on FEV-1 (forced expiratory volume in 1 second) as a percentage of predicted normal — a pulmonary function test (PFT) is essential for any rating above 0%.
  • ›The C&P examiner will order a PFT if you don't already have one — go to your exam even without PFT results.
  • ›Daily bronchodilator or anti-inflammatory use without FEV-1 results may still support a 30% rating based on treatment needs.
  • ›PACT Act presumptive eligibility may apply for veterans with qualifying deployments after August 2, 1990.
  • ›Asthma secondary to service-connected rhinitis or sinusitis is a valid alternative nexus strategy.
  • ›Oral corticosteroid use (prednisone) for asthma control is a strong indicator of a higher rating — document every prescription.

Eligibility Basics

✅
Current symptoms
✅
In-service event
✅
Diagnosis or lay evidence
  • •Asthma is one of the primary conditions covered under the PACT Act for veterans exposed to burn pits, open air burn areas, and airborne hazards — especially in Southwest Asia.
  • •Veterans with qualifying PACT Act deployments may have a presumptive nexus — the VA cannot require you to prove your asthma was caused by service if you meet deployment criteria.
  • •The VA rates asthma primarily on FEV-1 (lung function test) and how much bronchodilator use is required — a pulmonary function test (PFT) is critical.
  • •Asthma diagnosed or worsened after service can still be service connected if the nexus to in-service exposure is documented.
  • •Asthma can also be filed secondary to rhinitis or sinusitis that is already service connected.

Evidence to Gather

Service Records

  • •deployment records showing service in Southwest Asia or PACT Act covered locations
  • •sick call or medical records showing respiratory complaints during service
  • •records of inhaler prescriptions or breathing treatments during service
  • •PACT Act burn pit registry enrollment
  • •post-deployment health assessments (PDHA/PDHRA) noting respiratory symptoms

Medical Evidence

  • •pulmonary function test (PFT / spirometry) showing FEV-1 values
  • •records diagnosing asthma or reactive airway disease
  • •records documenting bronchodilator use (daily vs as-needed)
  • •records of emergency or urgent care visits for asthma attacks
  • •records of oral corticosteroid (prednisone) prescriptions for asthma
  • •allergy testing if allergic component present

Lay Evidence (Buddy Statements)

  • •personal statement describing onset of breathing symptoms during or shortly after service
  • •statement describing frequency and severity of asthma attacks
  • •buddy statement confirming deployment exposure or observed breathing difficulties

Diagnostic Tests

  • •spirometry / pulmonary function test (PFT) — measures FEV-1
  • •bronchodilator reversibility testing
  • •methacholine challenge test (confirms airway hyperreactivity)
  • •peak flow monitoring
  • •chest X-ray or CT
  • •FeNO test (airway inflammation)

C&P Exam Preparation

Exam type: Pulmonary / Respiratory DBQ — Bronchial Asthma

Be ready to describe

  • •when breathing symptoms first started — especially if during or shortly after deployment
  • •specific deployment locations and known exposures (burn pits, dust, smoke, chemicals)
  • •how often you use your rescue inhaler and why
  • •what daily medications you take for asthma control
  • •your FEV-1 results if you have them, or that you need a PFT ordered
  • •how asthma limits physical activity, sleep, and work
  • •any ER visits or hospitalizations for breathing attacks

Prep notes

  • •Get a pulmonary function test (PFT) before your exam if at all possible — your FEV-1 is the number the VA uses to assign your rating.
  • •Do not use your rescue inhaler right before the C&P exam — go in with your baseline so your results reflect your true impairment.
  • •Bring a list of all asthma medications — both controller and rescue — with dosages.
  • •Be specific about PACT Act deployment locations and exposure types.
  • •If you've had ER visits or hospitalizations, mention dates and hospital names.
  • •Describe the worst your symptoms get during an attack, not just an average day.
  • •If your asthma is triggered by exercise, smoke, or cold air — say so specifically.

Quick Facts

Diagnostic Code
DC 6602
Category
Respiratory
Subcategory
Lower Airway
Typical Claim Type
direct
Rating Range
0% – 100%

Also Known As

asthmareactive airway diseasebronchial asthmaexercise induced asthmaoccupational asthmaRADairway hyperreactivitywheezingshortness of breath

Related Conditions

Secondary to

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