Respiratory · 38 CFR 4.97 · DC 6601
Constrictive Bronchiolitis VA Disability Rating
Constrictive (obliterative) bronchiolitis is a small-airway disease characterized by airflow obstruction. Rates under DC 6601 based on FEV1/FVC/DLCO — same brackets as chronic bronchitis. PACT Act burn-pit presumptive (38 CFR 3.320) for post-9/11 veterans with qualifying airborne-hazards exposure.
Rating criteria
| Rating | Criteria |
|---|---|
| 10% | FEV1 71-80% predicted. |
| 30% | FEV1 56-70%. |
| 60% | FEV1 40-55%. |
| 100% | FEV1 <40% or oxygen-dependent. |
Common secondary conditions
Veterans rated for constrictive bronchiolitis frequently file secondary-service-connection claims for:
- COPD
- Asthma
- Pulmonary fibrosis
Use the calculator
Once you know the percentage assigned for this condition, plug it into the VA Combined Rating Calculator alongside any other service-connected ratings to see your combined percentage and 2026 monthly compensation.
Source citations
- 38 CFR 4.97 (eCFR)
- VA.gov current monthly compensation rates
- VA Office of General Counsel — Accreditation directory
VetDisabilityCalc is an independent reference site operated by Zoom Lifestyle LLC. We are not VA-accredited and we do not prepare or present VA claims. The information in this guide is reference material based on the cited regulations and is not legal advice. For representation, use the official VA OGC accreditation directory.