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6 Steps to Prepare for the CMS HCC Model V28 – 2026

Understanding the 2026 V28 Cliff

In 2026, the Centers for Medicare & Medicaid Services (CMS) will finalize the three-year transition to the V28 risk adjustment model, ending the era of blended V24/V28 scoring. For Payment Year (PY) 2026, 100% of RAF scoring will be based on V28, meaning V24 codes will disappear overnight from reimbursement calculations.

According to CMS projections, organizations that do not re-align documentation and coding could face a 5–15% decline in RAF scores, directly impacting reimbursement and financial stability.

In simple terms, if your organization is still using “transition mode,” 2026 will be a revenue cliff.

This blog breaks down six actionable steps healthcare leaders, HIM Directors, Revenue Cycle Directors, VP of Rev Cycle, and RCM executives must take now to protect revenue and ensure compliance under V28.

V24 and V28 models and codes

What Makes V28 So Different from V24?

Before preparing your organization, you need to understand the magnitude of the shift.

Feature V24 (Legacy) V28 (2026 Full Implementation) Impact
Phase-In Status 33% of the score (in 2025) 100% of score (in 2026) V24 codes eliminated
HCC Categories 86 115 Higher granularity
Diagnosis Codes ~9,797 ~7,770 2,000+ codes deleted
Code Logic ICD-9 legacy ICD-10 specificity Severity becomes essential
Example PVD coded & risk-adjusted PVD removed, only Atherosclerosis w/ ulcer/gangrene maps Unspecified = Zero Value

Statistic: Nearly 22% of current RAF scores rely on codes that will have no value in V28.

six actionable steps for healthcare leaders

How Can Healthcare Organizations Prepare?

Below are the six steps you must implement before Q1 2026 to ensure financial stability and compliance.

Step 1: How Do You Perform a V28-Only Financial Impact Analysis?

Most organizations still evaluate blended RAF performance, masking the real exposure to revenue loss.

Action

Run a shadow RAF assessment using 100% V28 logic, across service lines, provider groups, and chronic patient cohorts.

Goal

Identify “V24-dependent” populations, patients whose risk scores depend on codes like:

Insight

Organizations that conduct V28-only forecasting early in 2025 are 3× more likely to meet PY2026 revenue targets.

Step 2: How Should CDI Teams Adapt for V28 Documentation Specificity?

In V28, “unspecified” = “unrecognized.” If the diagnosis lacks severity or complication details, it does not risk-adjust.

The New Rule

“If it isn’t clinically specific, it likely won’t count.”

Code This - Not That (V28 Examples)

Condition Avoid This Use This Instead
Depression F32.0 (removed) F32.A / F33.2 (severity needed)
PVD I73.9 (deleted) I70.235 (with ulcer/gangrene)
Angina I20.9 (removed) I20.0 (unstable)

Best Practice

HIM & CDI teams must shift from diagnosis capture to severity documentation with templates and prompts built directly into the EHR.

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Podcast • Episode

V28 Transition: Revenue Protection & Compliance Strategy

Step 3: Is Your Suspecting Logic Still Recommending V24 Codes?

Many suspecting engines still surface obsolete V24 codes, distracting providers and reducing encounter quality.

Actions

EHR Example

Instead of “Suspect Diabetes,” recommend:
“Suspect Diabetes WITH neuropathy or CKD, review chart for complications.”

Result

Reduced alert fatigue. Higher coding precision. Lower provider frustration.

Step 4: What’s the Best Way to Train Providers on V28?

Traditional coding training won’t work. You must teach WHY the clinical documentation changes, not just what to code.

Training Strategy

Example: Diabetes Under V28

In V28, “with acute complications” and “without complications” carry nearly the same RAF value.
Only chronic complications (neuropathy, nephropathy, retinopathy) drive value.

Teach clinicians: “Don’t just capture the problem, capture its clinical consequence.”

Step 5: How Should You Recapture & Re-Evaluate Patients?

Patients whose only qualifying HCC is being deleted in V28 will vanish from your risk registry in 2026.

Action Plan

Example

A patient previously coded with:

Major Depressive Disorder, Unspecified (F32.9)

may actually have:
Major Depression, Moderate (F32.1) to V28-compliant & valid

Objective

Recapture only legitimate risk, backed by clinical evidence.

Step 6: How Do You Prevent “Severity Creep” and Compliance Risks?

As revenue declines, organizations may feel pressured to increase severity coding, a red flag for CMS audits.

Why This Matters

OIG has already stated that V28-related severity upcoding will be monitored closely.

Defense Strategy

Compliance Rule

Every severe diagnosis must be defensible. If CMS requests proof, can your team produce it instantly?

What’s the Best Timeline to Follow Before V28 Goes Live?

Timeline Required Actions
Q1–Q2 2025 100% V28 financial impact assessment + IT suspecting audit
Q3–Q4 2025 Provider education + documentation specificity training
Jan 1, 2026 All claims must follow V28 coding requirements

What Should Leaders Do Right Now?

If you wait until 2026, you will be too late.

Your immediate priorities should be:

Healthcare leaders who move now will protect revenue, reduce compliance risk, and transition successfully into V28 without disruption.

Need Help Implementing V28?

If you need a V28 financial impact audit, provider documentation training, or suspecting algorithm updates, we can guide your organization through every phase of implementation.

Let’s ensure your organization doesn’t fall off the 2026 cliff, but leads from ahead.

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