What are value-based performance metrics?

Value-based performance metrics are the measurable outcomes that determine payment under at-risk healthcare contracts. The eight that matter most: PMPM cost variance vs. benchmark, quality score percentile (vs. APP / Web Interface peer benchmark), HCC RAF capture, hospitalisation rate per 1,000 attributed lives, care gap closure rate, AWV completion rate, attribution retention, and post-acute leakage rate. The first four are settlement metrics; the last four are operational levers that move them.

Every value-based contract specifies a payment formula that depends on a subset of these metrics. MSSP settles on risk-adjusted total cost (PMPM) and the APP Quality Performance Standard. Medicare Advantage settles on member-level RAF (driving plan revenue), HEDIS measure performance (driving Stars bonus), and MLR (which drives rebate exposure). BPCI Advanced settles on the 90-day episode cost. Commercial VBC contracts settle on a payer-negotiated mix. The list above is the union of the metrics that show up across these contract types — getting any one of them wrong moves dollars at the settlement.

The metrics most often gamed or distorted in VBC reporting are HCC capture and attribution. HCC capture is gameable because there's a financial incentive to document more diagnoses; CMS audits via RADV to catch over-capture, but the rate of audit is low and the penalty distribution is uncertain. The defensible posture is to capture every HCC that's clinically valid and documentable from current-year encounter data, with chart abstraction support ready for RADV review. Attribution is distorted when ACOs report on the population they touched, not the population CMS attributed to them — the two diverge by 10–20% in most ACOs, and reporting on the wrong denominator inflates apparent performance. Both gameable spots get caught at settlement, so the right approach is to report against the CMS-attributed denominator from day one.

Practical value-based performance metric reporting has three traits. First, all eight metrics are visible on a single dashboard with current performance, target threshold, and dollar value at stake. Second, each metric has the operational driver visible — PMPM linked to hospitalisations and leakage, quality score linked to gap roster, HCC capture linked to AWV scheduling. Third, the dashboard refreshes continuously, not at month-end or year-end. Top-quartile ACO performance is rarely about superior clinical care — it's about superior visibility into these metrics with time to act before settlement.