Medical Review Fundamentals and the Regulatory Framework
The reviewer's foundation
Medical review sits at the intersection of clinical judgment and administrative rule-following. A candidate must know the hierarchy of authority: federal statute (Social Security Act, especially Titles XVIII and XIX), regulations in the Code of Federal Regulations, then sub-regulatory guidance such as National Coverage Determinations (NCDs), Local Coverage Determinations (LCDs), manuals, and transmittals. When sources conflict, the higher authority controls; an LCD cannot override an NCD, and neither can override statute.
Core concepts to master
Understand the difference between coverage (is the service a covered benefit?), medical necessity (is it reasonable and necessary for this patient?), and payment (how much, and under what conditions?). Know the roles of the Centers for Medicare & Medicaid Services, Medicare Administrative Contractors, Recovery Audit Contractors, and Quality Improvement Organizations. Familiarize yourself with HIPAA privacy and security rules, the False Claims Act, the Anti-Kickback Statute, and the Physician Self-Referral (Stark) Law at a conceptual level.
Traps in questions
Distractors often swap coverage with payment, or cite a manual as if it were regulation. Watch for answer choices that treat an LCD as binding nationwide (it is contractor-specific) or that ignore the beneficiary notice requirements before denying services.
Rule of thumb
When two authorities conflict, ask: statute, then regulation, then NCD, then LCD, then manual. The first source that speaks to the issue wins. Worked example: an LCD says a test is covered annually, but the NCD limits it to once per lifetime-the NCD controls, so a second test in a year is not covered regardless of the LCD.