Two Functions That Used to Be Separate
For most of their history, Star Ratings and risk adjustment operated as separate functions within Medicare Advantage organizations. Star Ratings measured quality through HEDIS metrics, patient experience surveys, and administrative outcomes. Risk adjustment measured disease burden through diagnosis coding. Different teams. Different technology. Different reporting lines. The two functions shared member data but rarely shared strategy.
That separation is closing. CMS’s CY 2027 Final Rule restructured Star Ratings by removing 11 administrative measures and adding Depression Screening. The measure set increasingly overlaps with clinical documentation quality, the same documentation that risk adjustment depends on. A provider who documents depression management thoroughly satisfies both the Star Ratings measure and the HCC coding requirement. A provider who documents poorly fails both.
Where the Overlap Creates Efficiency
The clinical conditions that drive the highest-value HCCs are often the same conditions that drive Star Ratings performance. Diabetes management (HCC 18/19) overlaps with HEDIS diabetes measures. Depression (HCC 59) now overlaps with the new Depression Screening measure. Cardiovascular conditions overlap with blood pressure and cholesterol measures. Chronic kidney disease overlaps with medication management measures.
When retrospective chart review identifies documentation gaps for these overlapping conditions, the finding is relevant to both functions. A member whose diabetes is coded as an HCC but whose A1C monitoring isn’t documented has a risk adjustment vulnerability (the HCC may not survive MEAT validation) and a Star Ratings gap (the HEDIS measure won’t be satisfied). Fixing the documentation serves both purposes simultaneously.
Plans that route retrospective chart review findings to both their coding teams and their quality teams extract double value from every chart reviewed. The same documentation improvement that strengthens an HCC’s defensibility also closes a quality gap that improves Star Ratings performance.
Why Integrated Programs Outperform Siloed Ones
Plans running separate risk adjustment and quality improvement programs review the same charts twice for different purposes. The RA team reviews for HCC coding. The quality team reviews for HEDIS gaps. Both are looking at the same clinical documentation with different lenses but never sharing what they find. The inefficiency is obvious, but the bigger cost is the missed opportunity to fix documentation problems once for both purposes.
Integrated programs use a single chart review pass to identify both HCC coding opportunities and quality measure gaps. The AI evaluates the documentation against MEAT criteria for risk adjustment and against HEDIS specifications for quality simultaneously. The coder sees both assessments in one view. Provider queries address both documentation needs in a single communication rather than two separate ones.
The Strategic Convergence
CMS is converging the incentive structures for coding accuracy and quality performance. Plans that score well on Star Ratings receive bonus payments. Plans that code accurately retain risk-adjusted revenue through audit defense. Both outcomes depend on the same input: high-quality clinical documentation at the provider level. Retrospective hcc coding programs designed to improve documentation quality rather than just extract codes from existing documentation are positioned to drive both risk adjustment accuracy and quality performance from a single investment. The plans that recognize this convergence and structure their programs accordingly will outperform those still running parallel operations that never talk to each other.
