Group III. Function: Elevation and abduction of arm to level of shoulder; act with 1 and 2 of Group II in forward and backward swing of arm. Intrinsic muscles of shoulder girdle: Pectoralis major I; deltoid (DC 5303)

Rating levels

• 40% — You have severe damage to the muscles that lift your arm up to shoulder height and move it away from your body - specifically the upper chest muscle that connects to your collarbone (pectoralis major clavicular portion) and the shoulder cap muscle (deltoid). This level of injury significantly limits your ability to raise your arm to the side or lift it up to shoulder level, and also affects how well you can swing your arm forward and backward.
• 30% — Your shoulder muscles are severely damaged, making it extremely difficult to lift your arm up to shoulder height or move it away from your side. The main chest muscle that connects to your collarbone (pectoralis major) and your shoulder cap muscle (deltoid) are significantly impaired, causing major problems with basic arm movements like reaching forward, backward, or out to the side.
• 30% — The moderately severe level applies when you have significant problems lifting your arm up to shoulder height or moving it out to the side due to injury to your chest muscle that connects to your collarbone (pectoralis major) or your shoulder muscle (deltoid). You can still move your arm forward and backward somewhat, but raising it up or out to the side is substantially limited and difficult.
• 20% — You have moderately severe damage to the muscles that help you lift your arm up to shoulder height and move it away from your body. This affects your pectoralis major (the large chest muscle that connects to your collarbone) and your deltoid (the rounded shoulder muscle), making it significantly harder to raise your arm forward, backward, or out to the side.
• 20% — You have moderate difficulty lifting your arm up to shoulder height or moving it away from your body due to injury to your chest muscle (pectoralis major) and shoulder muscle (deltoid). This affects your ability to do everyday activities like reaching for items on shelves, putting on shirts, or lifting objects above waist level, but you still have some functional movement in your shoulder and arm.
• 20% — You have moderate difficulty lifting your arm up to shoulder height or moving it away from your body due to injury to your chest muscle (pectoralis major) and shoulder muscle (deltoid). This affects your ability to do everyday activities like reaching for items on shelves, putting on shirts, or lifting objects above waist level, but you still have some functional movement in your shoulder and arm.
• 0% — You have slight weakness or damage to the muscles that lift your arm out to the side and raise it up to shoulder height - specifically the front part of your chest muscle (pectoralis major) and your shoulder muscle (deltoid). The muscle problems are minor and don't significantly interfere with your ability to move your arm forward, backward, or lift it to shoulder level during daily activities.
• 0% — You have slight weakness or damage to the muscles that lift your arm out to the side and raise it up to shoulder height - specifically the front part of your chest muscle (pectoralis major) and your shoulder muscle (deltoid). The muscle problems are minor and don't significantly interfere with your ability to move your arm forward, backward, or lift it to shoulder level during daily activities.