Conditions/Musculoskeletal

Muscle Group XXI Injury (Respiration)

Diagnostic Code 5321Musculoskeletal

Injury to Muscle Group XXI - muscles of respiration (thoracic muscle group).

VA Rating Criteria (38 CFR)
20%

Severe or moderate

10%

Slight

Evidence You'll Need

Medical Evidence

Current diagnosis from a qualified healthcare provider, medical records documenting symptoms and treatment history

Service Connection

Evidence linking your condition to military service (service treatment records, incident reports, or nexus letter)

Personal Statement

Your detailed account of how muscle group xxi injury (respiration) affects your daily life and when symptoms began

Lay Evidence

Buddy letters from fellow service members or family who can corroborate your symptoms

C&P Exam Tips Preview

During your Compensation & Pension exam for muscle group xxi injury (respiration), examiners will assess your symptoms against the rating criteria above.

Be specific: Describe your worst day, not your average day

Document everything: Bring copies of all medical records and evidence

Functional impact: Explain how symptoms affect work, sleep, and daily activities

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