In 2026, CMS-HCC Model V28 is now fully in effect, RADV audits are accelerating, and the OIG is actively flagging unsupported diagnosis codes across Medicare Advantage plans. Yet despite the heightened regulatory environment, many organizations continue making the same risk adjustment mistakes that cost them revenue, trigger audits, and damage long-term compliance standing. At HealthSpective, we have worked with health plans, provider groups, and managed care organizations si