DC 6823Respiratory System38 CFR § 4.97Last verified: APR 22, 2026

Nocardiosis

Nocardiosis is rated under 38 CFR 38 CFR § 4.97, Diagnostic Code 6823, from 0% to 50% based on the frequency and functional severity of symptoms. The maximum 50% rating requires: Thereafter for four years, or in any event, to six years after date of inactivity. Most claims establish the 0% or 20% rating before reaching the top tier.

What are the VA rating criteria for Nocardiosis?

0%Disability Rating

Otherwise

Note: Via General Rating Formula for Inactive Pulmonary Tuberculosis: For two years after date of inactivity, following active tuberculosis, which was clinically identified during service or subsequently

20%Disability Rating

Following moderately advanced lesions, provided there is continued disability, emphysema, dyspnea on exertion, impairment of health, etc

Note: Via General Rating Formula for Inactive Pulmonary Tuberculosis: For two years after date of inactivity, following active tuberculosis, which was clinically identified during service or subsequently

30%Disability Rating

Thereafter, for five years, or to eleven years after date of inactivity

Note: Via General Rating Formula for Inactive Pulmonary Tuberculosis: For two years after date of inactivity, following active tuberculosis, which was clinically identified during service or subsequently

50%Disability Rating

Thereafter for four years, or in any event, to six years after date of inactivity

Note: Via General Rating Formula for Inactive Pulmonary Tuberculosis: For two years after date of inactivity, following active tuberculosis, which was clinically identified during service or subsequently

Thereafter, for five years, or to eleven years after date of inactivity
— 38 CFR 38 CFR § 4.97, Diagnostic Code 6823 (30% tier)

Common Questions About Nocardiosis VA Ratings

What is the VA rating range for Nocardiosis?

The VA rates Nocardiosis under Diagnostic Code 6823 at 0%, 20%, 30%, 50%. The minimum 0% rating requires: Otherwise. The maximum 50% rating requires: Thereafter for four years, or in any event, to six years after date of inactivity.

Which 38 CFR diagnostic code does the VA use for Nocardiosis?

The VA rates Nocardiosis under Diagnostic Code (DC) 6823, governed by 38 CFR 38 CFR § 4.97. The diagnostic code establishes the specific rating tiers and severity criteria the VA examiner applies.

What is the difference between a 0% and a 50% rating for Nocardiosis?

A 0% rating requires: Otherwise. A 50% rating requires: Thereafter for four years, or in any event, to six years after date of inactivity. The difference typically reflects the frequency, severity, or functional impact of the condition as documented in medical records and C&P examination findings.

Can Nocardiosis qualify for TDIU (Total Disability Individual Unemployability)?

Veterans rated for Nocardiosis may qualify for TDIU if the condition — alone or in combination with other service-connected disabilities — prevents substantially gainful employment. A single disability rated at 60% or higher (or multiple disabilities combining to 70%, with one at 40%) can support a TDIU claim under 38 CFR § 4.16.

What evidence do I need to establish service connection for Nocardiosis?

Service connection for Nocardiosis requires three elements: (1) a current diagnosis of the condition, (2) an in-service event, injury, or disease, and (3) a medical nexus linking the current diagnosis to that in-service occurrence. A nexus letter from a treating or independent medical examiner is the most reliable nexus evidence.

What is the C&P exam like for Nocardiosis?

A Compensation & Pension (C&P) exam for Nocardiosis uses a Disability Benefits Questionnaire (DBQ) specific to the body system involved. The examiner documents the frequency, severity, and functional impact of your symptoms. Bring all relevant treatment records and be prepared to describe your worst-day symptoms — the examiner rates your condition based on the full clinical picture, not a single visit.

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