DC 6312Infectious Diseases38 CFR § 4.88bLast verified: APR 22, 2026

Nontuberculosis mycobacterium infection

Nontuberculosis mycobacterium infection is rated under 38 CFR 38 CFR § 4.88b, Diagnostic Code 6312, from 100% to 100% based on the frequency and functional severity of symptoms. The maximum 100% rating requires: As active disease. Most claims establish the 100% or 100% rating before reaching the top tier.

Rating schedule — DC 6312 at a glance

Minimum rating
100%

Lowest schedular rating available

Maximum rating
100%

Full schedular disability

Rating tiers
1

100%

CFR section
38 CFR § 4.88b

Part 4 rating schedule

Body system
Infectious Diseases
Secondary conditions
0

None mapped

What are the VA rating criteria for Nontuberculosis mycobacterium infection?

100%Disability Rating

As active disease

As active disease

Common Questions About Nontuberculosis mycobacterium infection VA Ratings

What is the VA rating range for Nontuberculosis mycobacterium infection?

The VA rates Nontuberculosis mycobacterium infection under Diagnostic Code 6312 at 100%. The minimum 100% rating requires: As active disease. The maximum 100% rating requires: As active disease.

Which 38 CFR diagnostic code does the VA use for Nontuberculosis mycobacterium infection?

The VA rates Nontuberculosis mycobacterium infection under Diagnostic Code (DC) 6312, governed by 38 CFR 38 CFR § 4.88b. The diagnostic code establishes the specific rating tiers and severity criteria the VA examiner applies.

Can Nontuberculosis mycobacterium infection qualify for TDIU (Total Disability Individual Unemployability)?

Veterans rated for Nontuberculosis mycobacterium infection 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 Nontuberculosis mycobacterium infection?

Service connection for Nontuberculosis mycobacterium infection 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 Nontuberculosis mycobacterium infection?

A Compensation & Pension (C&P) exam for Nontuberculosis mycobacterium infection 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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