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Diagnostic Code 6602: Asthma, bronchial
Respiratory System · 38 CFR §4.97 · All codes in this system
| Evaluation criteria | Rating |
|---|---|
| FEV-1 less than 40-percent predicted, or; FEV-1/FVC less than 40 percent, or; more than one attack per week with episodes of respiratory failure, or; requires daily use of systemic (oral or parenteral) high dose corticosteroids or immuno-suppressive medications | 100% |
| FEV-1 of 40- to 55-percent predicted, or; FEV-1/FVC of 40 to 55 percent, or; at least monthly visits to a physician for required care of exacerbations, or; intermittent (at least three per year) courses of systemic (oral or parenteral) corticosteroids | 60% |
| FEV-1 of 56- to 70-percent predicted, or; FEV-1/FVC of 56 to 70 percent, or; daily inhalational or oral bronchodilator therapy, or; inhalational anti-inflammatory medication | 30% |
| FEV-1 of 71- to 80-percent predicted, or; FEV-1/FVC of 71 to 80 percent, or; intermittent inhalational or oral bronchodilator therapy | 10% |
| Note: In the absence of clinical findings of asthma at time of examination, a verified history of asthmatic attacks must be of record. | |
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Source: eCFR Title 38, 38 CFR §4.97, current as of 2026-11-05. Criteria text is the regulatory text, reproduced verbatim for reference; it is not legal advice.