By Fatskills Exam Guides Team — the exam nerds behind 28,500+ quizzes and 2.1M practice questions across 500+ global exams.
Answer in brief Revenue leakage in HCC work is not only about denials or overpayment takebacks. It is also about under-capture: active, supported comorbidities that never make it into accurate, specific, timely documentation and coding. Because CMS-HCC risk scores reflect predicted cost, missed comorbidities can quietly understate illness burden and payment.
CMS’s 2024 Report to Congress says the 2024 CMS-HCC model includes count variables for payment HCCs and adjusts total predicted cost as the number of conditions increases. That means missing a valid comorbidity can matter even when the primary condition was captured.
Overpayment problems create audits and headlines. Under-capture often creates nothing obvious at all. The diagnosis is simply absent, the condition count is lower, and the risk score may not fully reflect the patient’s burden. That is an inference grounded in CMS’s explanation of how risk scores and payment-condition counts work.
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