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Weight Gain / Obesity VA Disability Rating is rated by the U.S. Department of Veterans Affairs under DC Varies of 38 C.F.R. § 3.310 across 3 severity tiers (40%+ -- Severe limitation or ankylosis / 20% -- Moderate limitation / 10% -- Mild limitation or painful motion). 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.
Obesity itself is not a ratable disability, but weight gain secondary to service-connected conditions (medications, limited mobility, PTSD) can support secondary service connection for conditions caused by the weight gain: sleep apnea, diabetes, hypertension, and joint degeneration.
Weight Gain / Obesity (DC Varies) is evaluated under 38 C.F.R. § 3.310 using the other rating framework. Because it is rated by analogy to the general schedule, the 3 levels below describe the body-system criteria the VA applies — the percentage assigned to Weight Gain / Obesity depends on the specific findings (range of motion, frequency, severity, or functional loss) documented at the C&P exam and in the medical record.
Rating criteria reference 38 C.F.R. Part 4 (Schedule for Rating Disabilities). This entry has not yet undergone editorial review against the live regulation text — consult the authoritative source directly before relying on the criteria shown.