Testosterone Deficiency Syndrome is rated by the U.S. Department of Veterans Affairs under DC 7999 of 38 CFR § 4.119, DC 7999 (rated by analogy to hypogonadism) across 1 severity tier (0%). Service connection requires (1) a current diagnosis, (2) an in-service event, injury, or exposure, and (3) a medical nexus opinion linking the two under 38 C.F.R. § 3.303.
Clinical syndrome resulting from low testosterone levels causing symptoms such as fatigue, decreased libido, erectile dysfunction, loss of muscle mass, and mood changes. Frequently secondary to medications, TBI, or other service-connected conditions.
Rating criteria text quoted verbatim from 38 C.F.R. § 4.119 (Endocrine system). Source verified 2026-05-15 by ClaimRecon Editorial Team against the Cornell Law CFR mirror; eCFR.gov is the authoritative government source.