Diagnostic Code 5313 · 38 CFR §4.73
Muscle Group XIII consists of the posterior thigh muscles, commonly known as the hamstrings. This group includes the biceps femoris, semimembranosus, and semitendinosus. These muscles bend the knee and extend the hip, playing a critical role in walking, running, climbing, and decelerating from a sprint. They are among the most powerful muscles in the body and are frequently injured during military activities through direct trauma, strains from running and sprinting, and penetrating wounds to the back of the thigh.
| Rating | Criteria |
|---|---|
| 0% | |
| 10% | |
| 30% | |
| 40% |
Service records documenting the posterior thigh injury, Treatment and surgical records, Knee flexion strength testing comparing both legs, Thigh circumference measurements comparing both sides, Statements about difficulty with walking, running, climbing stairs, and bending the knee