My Personal Learning Notes on Hierarchical Condition Categories (HCC) and Risk Adjustment
This is my private notebook where I organize everything I’m learning about HCC Coding, Risk Adjustment (RAF), and related healthcare analytics.
Last Updated: June 16, 2026
📚 Main Topics
1. Risk Adjustment Fundamentals
- What is Risk Adjustment?
- What is RAF Score?
- What is HCC?
- CMS-HCC vs HHS-HCC
- Prospective vs Concurrent Risk Adjustment
2. HCC Coding Essentials
- ICD-10 and HCC Mapping
- Common HCC Categories
- Documentation Requirements
- MEAT Criteria (Monitor, Evaluate, Assess, Treat)
3. V24 vs V28 Transition
- V24 vs V28 – What Changed?
- Impact on RAF Scores
- Top HCC Coding Errors (V24 → V28)
4. Real-World HCC Analytics
- Finding Missing Documentation (NOT EXISTS)
- HCC Coding Accuracy Analysis
- RADV Audit Preparation
- Overpayment & OIG Cases
5. My HCC Study Notes
- Solved Exercises & Query Patterns
- Common Pitfalls in HCC Coding
- Useful Mental Models
📌 Featured Posts
- ProductKey vs ProductAlternateKey
- V24 vs V28 Transition
- SQL Final Review #1 – Patient and Diagnosis Tables
🌱 This page will continue to grow as I study HCC and Risk Adjustment.