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Diagnostic Code 5311: Group XI. Function
Muscle Injuries · 38 CFR §4.73 · All codes in this system
| Evaluation criteria | Rating |
|---|---|
| Propulsion, plantar flexion of foot (1); stabilization of arch (2, 3); flexion of toes (4, 5); Flexion of knee (6). Posterior and lateral crural muscles, and muscles of the calf: (1) Triceps surae (gastrocnemius and soleus); (2) tibialis posterior; (3) peroneus longus; (4) peroneus brevis; (5) flexor hallucis longus; (6) flexor digitorum longus; (7) popliteus; (8) plantaris | |
| Severe | 30% |
| Moderately Severe | 20% |
| Moderate | 10% |
| Slight | 0% |
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Source: eCFR Title 38, 38 CFR §4.73, current as of 2026-11-05. Criteria text is the regulatory text, reproduced verbatim for reference; it is not legal advice.