Pulmonary Fibrosis (Interstitial Lung Disease)

DC 6833Respiratory38 CFR 4.97, DC 6833

A lung disease where the tissue in your lungs becomes thick and scarred, making it harder to breathe. The VA rates pulmonary fibrosis based on lung function tests, specifically your forced vital capacity (FVC) and diffusion capacity (DLCO).

How the VA rates this condition

The VA rates this condition based on objective clinical measurements and test results. The examiner will use standardized tests or lab values to determine the severity of your condition rather than relying primarily on subjective symptom reports.

Diagnostic code

DC 6833

Rating range

30% – 100%

Rating levels

Rating criteria are defined in 38 CFR 4.97, DC 6833. This guide presents a plain-language summary and is not a substitute for the full regulatory text. Always consult a VSO or VA-accredited attorney for case-specific advice.

Rating Levels

Your lung function tests show FVC less than 50 percent predicted, or DLCO less than 40 percent predicted, or maximum exercise capacity less than 15 ml/kg/min oxygen consumption, or cor pulmonale, or you require outpatient oxygen therapy.

What the VA looks for

FVC less than 50% predicted on PFT
DLCO (SB) less than 40% predicted on PFT
Maximum exercise capacity less than 15 ml/kg/min
Cor pulmonale or right ventricular hypertrophy
Outpatient oxygen therapy prescription
Episodes of acute respiratory failure

Common Pitfalls

⚠Not getting both FVC and DLCO measured during PFTs — the VA uses whichever test gives the higher rating.
⚠Pulmonary fibrosis is progressive — request re-evaluation as lung function declines over time.
⚠Not connecting pulmonary fibrosis to burn pit, asbestos, or other toxic exposure during service — these are common causes.
⚠Not filing for supplemental oxygen as a special monthly compensation need.