Blastomycosis

The VA rates Blastomycosis under Diagnostic Code 6836 at 10%, 30%, 60%, 100%. The minimum 10% rating requires: FVC of 75- to 80-percent predicted, or; DLCO (SB) of 66- to 80-percent predicted. The maximum 100% rating requires: Forced Vital Capacity (FVC) less than 50-percent predicted, or; Diffusion Capacity of the Lung for Carbon Monoxide by the Single Breath Method (DLCO (SB)) less than 40-percent predicted, or; maximum exercise capacity less than 15 ml/kg/min oxygen consumption with cardiorespiratory limitation, or; cor pulmonale or pulmonary hypertension, or; requires outpatient oxygen therapy.

The VA rates Blastomycosis under Diagnostic Code (DC) 6836, governed by 38 CFR 38 CFR § 4.97. The diagnostic code establishes the specific rating tiers and severity criteria the VA examiner applies.

A 10% rating requires: FVC of 75- to 80-percent predicted, or; DLCO (SB) of 66- to 80-percent predicted. A 100% rating requires: Forced Vital Capacity (FVC) less than 50-percent predicted, or; Diffusion Capacity of the Lung for Carbon Monoxide by the Single Breath Method (DLCO (SB)) less than 40-percent predicted, or; maximum exercise capacity less than 15 ml/kg/min oxygen consumption with cardiorespiratory limitation, or; cor pulmonale or pulmonary hypertension, or; requires outpatient oxygen therapy. The difference typically reflects the frequency, severity, or functional impact of the condition as documented in medical records and C&P examination findings.

Yes — a 100% rating for Blastomycosis alone meets the single-disability threshold for TDIU (38 CFR § 4.16). If the condition prevents substantially gainful employment, the veteran is compensated at the 100% rate without a schedular 100% rating.

The key evidence for Blastomycosis is documentation of how the condition affects daily functioning. Treatment records showing worsening symptoms, functional limitations documented by your provider, and buddy statements describing observable impact on daily life all strengthen the claim. A nexus letter from a qualified medical professional linking the current severity to service is essential for contested claims.

The C&P examiner uses a Respiratory System DBQ and evaluates your condition against the DC 6836 rating criteria. Pulmonary function tests (PFTs) drive the rating. The examiner measures FEV-1, FVC, and DLCO. Test during symptomatic periods when possible — stable periods produce higher numbers that may underrate your condition.