Stop Waiting for 2026—Your Risk Metrics Are Already Broken

Stop Waiting for 2026—Your Risk Metrics Are Already Broken

RPM Workflows| RPM-CCM
September 17, 2026

The 2026 contract cycle is not a warning shot. According to MedInsight, CMS is making two-sided financial risk the organizing principle for Medicare payment — launching the mandatory Ambulatory Specialty Model this year, with most clinicians likely inside performance-based risk arrangements by 2027. MDinteractive confirms CMS has already capped BASIC track one-sided participation at five years, down from seven.

Most internal medicine practices are not at fee-for-service and not at full risk. They are somewhere in between — and that middle ground is now expensive. The gap between where a practice is operationally and where its contracts are heading is a measurable dollar figure. This guide maps the route from here to there, in sequence, before the next negotiation locks in your benchmark.

What Downside Risk Actually Costs an Internal Medicine Practice — And Where the Exposure Hides

Downside risk is not an abstract payer concept. It is a specific dollar figure your practice owes when total cost of care for your attributed panel exceeds the benchmark CMS or your commercial payer set — and three operational gaps determine whether that number is manageable or catastrophic.

According to RAAPin Inc., CMS paid an estimated $615 billion to Medicare Advantage plans in 2026, with RAF scores determining how every dollar is distributed. If your practice is under-documenting chronic conditions, your benchmark gets set too low — and you absorb downside exposure you mathematically cannot escape.

The three places IM practices bleed margin first:

  • Under-coded chronic conditions. Talby analysts note that the FY2024 Medicare Advantage payment error reached $19.07 billion — and CMS responded by making HCC coding accuracy a compliance baseline, not a revenue strategy. Under V28, coding diabetes without documenting neuropathy (E11.9 vs. E11.42) collapses the RAF contribution from 0.302 to 0.105, according to Rapid RCM Solutions. That gap is invisible until contract settlement — then it is a check you write.
  • Unmanaged high-utilizers. One undiagnosed heart failure patient hitting an ER can consume months of shared savings from your entire panel. The NAACOS guidance document is direct: "Do not take material downside unless each key term has a named owner, data feed, cadence, performance metric and escalation path." Most IM practices cannot name those owners today.
  • Specialist referral volume without quality credit. Every cardiology or pulmonology referral increases total cost of care. In a downside contract, that cost flows back to your panel — with no offsetting quality credit unless the outcome is documented and attributed correctly.

These are not operational inefficiencies. In a two-sided contract, they are direct financial liabilities with a quarterly settlement date attached.

The Chronic Disease Documentation Gap: How Coding Accuracy Becomes a Contract Liability

Incomplete documentation is not a coding problem. In a downside risk contract, it is a financial liability with a specific dollar amount attached to it.

Under the fully-implemented V28 HCC model, the difference between coding a patient as Type 2 diabetes without complications (E11.9) versus Type 2 diabetes with neuropathy (E11.42) represents an RAF contribution swing from approximately 0.105 to 0.302, according to Rapid RCM Solutions. If that neuropathy exists in the chart but never makes it into the encounter code, that RAF gap — and the benchmark relief it provides — vanishes entirely.

The compounding effect is worse. A patient carrying diabetes, CKD, and congestive heart failure may carry an RAF of 0.428 at baseline. With documented interaction factors, that score rises to 1.327. Miss one condition, and you eliminate the interaction weight entirely — not just the individual HCC contribution.

  • The Clinical Architecture analysis found that coding diabetes with CKD to proper specificity (E11.22 vs. E11) alone can mean the difference between $992.96 and $2,875.83 per patient annually — nearly $1,900 per patient on a single HCC category
  • Reports citing NAACOS data suggest practices miss 8–12 HCC opportunities per 100 Medicare Advantage patients due to EHR systems not built for accurate HCC workflows
  • The American Institute of Healthcare Compliance warns that practices still running V24-era documentation habits could see RAF scores drop 10–20% under V28

This is exactly the workflow gap that Perfect Rhythm's ForeSee ESP addresses — scanning existing chart documentation via NLP, surfacing missed HCC opportunities with source-level evidence before the encounter closes, and flagging unsupported diagnoses before a RADV audit does it for you.

Diagnostic Infrastructure as a Risk Mitigation Strategy: Reducing Referrals, Improving Specificity

Every cardiology referral you generate in a downside risk contract is a cost-of-care event — not just a clinical handoff. Specialist visits, follow-up imaging, and downstream procedures accumulate against your total cost of care benchmark. When utilization exceeds that benchmark, the practice absorbs the loss.

The fix is not fewer referrals. It is more diagnostic specificity at the point of care — so the right patients get referred and the rest get managed in-office.

According to Therán León et al., Heart Views, 46% of patients later diagnosed with heart failure had documented symptoms during prior ambulatory visits. Primary care had the window. The diagnosis happened in the ER instead — at catastrophic per-episode cost.

That is the referral gap this infrastructure closes:

  • Cardiac evaluation in-office — Perfect Rhythm's CorVista system is FDA-cleared for coronary artery disease, pulmonary hypertension, and elevated PCWP (a key heart failure indicator), with no radiation, no fasting, and no injection required
  • 99% negative predictive value for CAD — meaning a negative CorVista result rules out significant disease with enough clinical confidence to avoid the cardiology referral entirely
  • Validated across 11,000+ patients and now the subject of a prospective Mayo Clinic collaboration evaluating PH detection and referral accuracy

CorVista Health's official release notes that 80% of pulmonary hypertension patients live in areas with limited access to advanced cardiovascular care — which means your panel likely contains undiagnosed PH cases that will eventually surface in an ED, not your office.

In a downside contract, that ED visit is your financial exposure. The diagnostic infrastructure prevents it.

Building the 2026 Technology Stack: A Sequenced Timeline for IM Practice Administrators

Contract negotiations do not wait for operational readiness. The sequencing below is built around that reality — not around what would be ideal in a frictionless world.

18 Months Out: Foundation Layer

  • Deploy HCC gap closure workflows. ForeSee ESP's V28-compliant scanning needs at least two full performance periods of clean data before it becomes a negotiating asset. Start now.
  • Install point-of-care cardiac diagnostics. According to Therán León et al., Heart Views, 46% of patients later diagnosed with heart failure had documented symptoms at prior ambulatory visits. That missed window is a future ER claim inside your downside exposure.

12 Months Out: Revenue and Engagement Layer

  • Activate RPM/CCM billing. Reports suggest concurrent RPM and CCM billing generates approximately $170–$260 per patient per month under the 2026 CMS Physician Fee Schedule, including two new codes that capture lower-engagement months that previously paid nothing.
  • Run referral pattern analytics. Identify your top 20 specialist referral pathways and quantify total cost exposure per pathway.

6 Months Out: Reporting Posture

  • Pull real-time quality metric dashboards — not retrospective reports.
  • Document RAF improvement trajectory with source-level evidence, not coder summaries.
  • Compile utilization trend data showing reduced avoidable ED and specialist visits.

As Innovaccer analysts noted, "your technology stack was built for a different era of value-based care." A practice entering 2026 negotiations with documented RAF improvement, active chronic disease capture, and 12 months of RPM revenue data is negotiating from evidence. A practice without that infrastructure is negotiating from projections — and payers know the difference.

The practices that walk into 2027 contract negotiations with 12 months of documented HCC accuracy, clean RADV-ready records, and measurable quality performance will set their own terms. The practices that wait will accept whatever benchmarks the payer assigns — and absorb whatever downside exposure follows.

As HOM RCM put it directly: organizations entering downside risk contracts without accurate patient stratification and proactive CDI are "absorbing financial exposure they can't anticipate or control." That is not a 2027 problem. The infrastructure decisions made before the next contract cycle determine which side of that sentence your practice is on.

The next step is straightforward:

Frequently Asked Questions

What is downside risk in a value-based care contract?

Downside risk means the practice is financially responsible for costs that exceed its benchmark — not just ineligible for a bonus. If total cost of care for attributed patients goes over the threshold, the practice repays a portion of that overage directly to CMS or the payer.

When do Internal Medicine practices need to prepare for downside risk contracts?

Preparation needs to happen in 2026, before 2027 contract cycles lock in benchmarks. According to Health IT Answers, success in 2027 and beyond hinges on laying the operational foundation in 2026. Waiting until a contract is signed leaves the practice negotiating without performance data.

How does HCC coding accuracy affect downside risk exposure?

Risk Adjustment Factor (RAF) scores derived from HCC documentation determine a practice's benchmark — the target the practice must beat to earn shared savings or avoid penalties. Under-coded patients lower RAF scores, making benchmarks artificially easy to miss. The V28 model, now fully live for payment year 2026, restructures several high-frequency condition categories, meaning legacy V24-era documentation habits are actively depressing reimbursement now.

What is the RADV audit risk for Internal Medicine practices with Medicare Advantage patients?

CMS expanded RADV audits from approximately 60 Medicare Advantage plans per year to all 550+ eligible contracts annually beginning in 2025. Unsupported HCC codes in provider documentation can trigger recoupment demands that flow from the plan back to the practice. PY2020 audits began in February 2026 on a quarterly cadence, according to a CMS HPMS memo cited by RAAPin Inc.

Can point-of-care diagnostics reduce downside risk liability?

Yes — in full-risk contracts, every avoidable specialist referral and preventable hospitalization increases total cost of care against the benchmark. In-office cardiac diagnostics that identify conditions like heart failure or coronary artery disease at the ambulatory visit eliminate downstream acute costs and generate the documented HCC that accurately reflects patient complexity.

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