Below insertion of pronator teres (DC 5124)
Diagnostic Code 5124 covers amputations or complete loss of use of your forearm below where the pronator teres muscle attaches (roughly the middle of your forearm). This is a fixed-percentage rating based on which specific part of your arm is affected - you'll either have the amputation/loss of use or you won't. The VA doesn't use percentage levels for this condition; instead, they assign a set rating percentage based on the exact location and extent of your amputation or loss of function, following the amputation schedule in 38 CFR § 4.71a.
Disclaimer: This tool is for informational purposes only and is not legal or medical advice. Always consult with your VSO representative or a qualified veterans benefits attorney for guidance on your specific claim.