Risk Adjustment

Where are diagnoses getting lost between encounter and submission?

For most health plans, the clinical evidence exists. The problem is it's buried in unstructured documents, siloed across systems, and never makes it into the risk workflow. OnyxOS connects the full picture — so nothing gets missed.

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The Problem

Incomplete clinical visibility means missed diagnoses and revenue leakage.

Risk adjustment accuracy depends on one thing: a complete, reconciled view of every member's clinical history. But that picture is typically fragmented — scattered across EHR systems, unstructured clinical notes, and disconnected claims data. HCC gaps go undetected. RAF scores don't reflect true member acuity. And audit exposure compounds quietly year over year. Manual chart chase makes it worse. It's slow, expensive, and doesn't scale to the volume a modern risk program demands.
How OnyxOS Enables This

Longitudinal clinical intelligence, connected and ready to act on.

OnyxOS brings together the full depth of the payer data stack — acquiring clinical and claims data at scale, structuring it into a longitudinal member record, and applying intelligence that continuously surfaces risk opportunities, reconciles diagnoses, and keeps your program audit-ready.

This isn't a point solution bolted onto your existing workflow. It's risk adjustment built into an operating system that already knows your members.

What It Does

KEY CAPABILITIES

HCC Gap Detection

Continuously identifies unrecaptured Hierarchical Condition Categories across your membership — drawing on both clinical and claims signals to surface gaps before the window closes.

RAF Opportunity Scoring

Prioritizes members and diagnoses by revenue impact and recapture likelihood, so clinical and coding teams focus where it matters most.

Prospective & Retrospective Suspecting

Run suspecting workflows forward and backward — identifying opportunities for the current plan year while reconciling prior-period diagnoses for retrospective accuracy.

Clinical Reconciliation

Matches clinical evidence from EHR, HIE, and unstructured documents against claims to validate, correct, and complete diagnosis coding at scale.

RADV Audit Readiness

Maintains a continuously updated audit trail linking every diagnosis to supporting clinical documentation — so when CMS calls, you're ready.

What Clients See

KEY OUTCOMES

Improved RAF accuracy

Diagnoses that reflect true member acuity, not just what made it through the claims process.

01

Faster gap detection

Risk opportunities surfaced continuously, not at the end of a manual chase cycle.

02

Reduced extraction effort

Clinical document retrieval and review automated at scale, freeing teams for higher-value work.

03

Reduced RADV audit risk

Complete, traceable documentation ready before the audit begins.

04
Powered by OnyxOS

Built on the platform. Not around it.

Risk adjustment isn't a standalone problem — it's a data problem. OnyxOS solves it at the foundation, connecting data acquisition, clinical structuring, and intelligence into a single operating system for payer performance.

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In Practice

How a regional health plan improved case detection by up to 80%.

A regional health plan needed to identify patients matching complex risk criteria across thousands of unstructured clinical documents — PDFs, scanned records, clinical notes. Traditional keyword search broke down against clinical abbreviations and varied provider terminology.

Onyx deployed a hybrid AI pipeline combining clinical NLP, vector search, and structured filters — purpose-built to find the signal buried in unstructured clinical data.
Read the full case study
60–80%
Improvement in relevant case identification
40%
Improvement in search result accuracy
Sub-2s
Cohort discovery at scale

Ready to see what your risk program is missing?

Talk to an Onyx expert about building a risk adjustment workflow that runs on complete clinical intelligence — not incomplete data.