Five years. That’s the window.

The WISeR Model — CMS’s Wound care Improvement through Standardized evidence-based Reimbursement program — is currently live in six pilot states and designed to run through 2031. Five years of data collection, algorithm refinement, and operational testing that will almost certainly determine the future of wound care reimbursement nationwide.

If you’re a wound care provider looking at this timeline and thinking, “I’ve got time,” I’d respectfully push back on that. Hard. Because the providers who use this five-year window strategically will be the ones still standing — and still profitable — when the dust settles. The ones who wait will be scrambling to rebuild their entire revenue cycle under pressure.

So let’s map this out. Year by year. What’s coming, what it means for your billing operation, and what you should be doing right now to get ahead of it.

2026: The Foundation Year — Get Your House in Order

Right now, in 2026, the WISeR Model is still contained to six pilot states. But “contained” is doing a lot of heavy lifting in that sentence. CMS is actively collecting performance data, refining AI authorization algorithms, and evaluating provider compliance patterns. Everything happening in those pilot states is building the blueprint for what comes next.

If you’re outside the pilot states, this is your golden window. You’ve got the luxury of preparing without the pressure of compliance deadlines. Don’t waste it.

What you should be doing right now:

• Audit your wound documentation infrastructure. Can your EHR capture wound measurements, healing percentages, and treatment protocols in structured data fields? If your providers are still writing free-text wound descriptions, you’re already behind. AI authorization systems don’t read narratives — they process data points.
• Baseline your current denial rates. You need to know where you stand today so you can measure improvement. Pull your wound care denial rates by payer, by procedure code, by denial reason. This becomes your benchmark.
• Invest in digital wound measurement tools. Standardized photographic documentation and digital measurement capture aren’t optional anymore. They’re the data input layer that AI systems expect. Practices still using manual rulers and handwritten notes will fail the data quality threshold when AI authorization arrives.
• Start the billing partner conversation. If your current billing team — in-house or outsourced — doesn’t have deep wound care expertise, now is the time to evaluate alternatives. Not next year. Now.

2027: The Expansion Signal — Watch for CMS Announcements

Based on historical CMS demonstration project patterns, 2027 is likely when we’ll see the first signals about expansion. CMS typically publishes interim evaluation reports two to three years into a pilot, and those reports shape the expansion timeline.

What to expect:

• Interim performance data from pilot states. CMS will publish findings on authorization accuracy, provider compliance rates, and cost impact. These numbers will tell you whether the model is working as intended — and whether expansion is accelerating or slowing.
• Algorithm refinements. The AI authorization models will have two years of real-world data by this point. Expect updated healing trajectory benchmarks, revised documentation requirements, and potentially new wound classification criteria. Providers in pilot states will feel these changes first.
• Payer adoption signals. Watch for commercial payers in non-pilot states beginning to adopt WISeR-style AI authorization for wound care. CMS pilots often inspire commercial payer policy changes before the federal model officially expands.

What you should be doing:

• Monitor CMS publications closely. Subscribe to Federal Register updates and CMS Innovation Center announcements. The expansion timeline will be telegraphed before it’s formalized.
• Begin episode-based billing training. The WISeR Model moves toward episode-based reimbursement for certain wound types. Your billing team needs to understand how individual procedure codes roll up into treatment episodes and how reimbursement gets calculated across those episodes.
• Pilot your own AI readiness. Run a mock exercise: take 20 wound care cases and evaluate whether your documentation would survive algorithmic review. Structured data fields populated? Healing trajectory documented longitudinally? Comorbidity profiles coded accurately? This exercise reveals gaps before they cost you money.

2028-2029: The Expansion Phase — Prepare for Go-Live

If CMS follows its typical trajectory, 2028-2029 is when expansion announcements become concrete. Additional states get added. Timelines get published. Provider enrollment requirements get formalized.

This is the phase where preparation turns into execution.

What to expect:

• Phased geographic expansion. CMS rarely goes from pilot to nationwide overnight. Expect regional expansion — possibly doubling or tripling the number of participating states over 12-18 months.
• Mandatory participation requirements. Providers in expansion states will likely face mandatory enrollment with defined compliance timelines. Voluntary participation may end.
• Refined documentation standards. By this point, the AI models will have four years of data. Documentation requirements will be more specific, more granular, and less forgiving of gaps.

What you should be doing:

• Formalize your wound care billing workflows. Every step — from initial wound assessment documentation through prior authorization submission through claim filing through A/R follow-up — needs to be mapped, standardized, and optimized for AI-driven authorization.
• Integrate clinical and billing teams. The data that drives authorization is clinical. The impact is financial. These teams can’t operate in silos. Build communication protocols that ensure real-time information flow between the wound care team and the billing operation.
• Stress-test your billing partner. If you’ve partnered with a specialized billing team, this is when that partnership gets tested. Are they tracking WISeR developments? Have they updated their workflows? Can they handle AI-driven denial appeals? If the answers aren’t confidently yes, it’s time to reassess.

Practices already working with dedicated wound care billing services partners who’ve been operating in pilot states will have a massive advantage during this phase. They’ll have two to three years of real-world AI authorization experience that practices starting from scratch simply won’t have.

2030: The Maturation Year — Optimize or Fall Behind

By 2030, the WISeR Model will have been running for five years. The AI algorithms will be mature. The documentation standards will be established. The early adopters will have refined their workflows through years of iteration.

This is the year where the gap between prepared and unprepared practices becomes a chasm.

What to expect:

• Performance-based adjustments. CMS may introduce performance tiers — rewarding providers with strong healing outcomes and compliant documentation with streamlined authorization, while increasing scrutiny on underperformers.
• Data transparency requirements. Expect CMS to publish provider-level performance data, similar to how Hospital Compare works. Your wound healing outcomes and authorization compliance rates may become public.
• Commercial payer alignment. By 2030, most major commercial payers will likely have adopted WISeR-aligned authorization frameworks, even in states where the CMS model isn’t formally active.

What you should be doing:

• Benchmark relentlessly. Compare your authorization approval rates, denial rates, healing outcomes, and reimbursement per episode against published benchmarks. Identify where you’re underperforming and fix it.
• Invest in predictive analytics. The practices that thrive in a mature AI authorization environment will be the ones using their own data to predict authorization outcomes before submission — catching potential denials before they happen.
• Refine your appeal strategy. AI-driven denials require data-driven appeals. By 2030, your billing team should have a sophisticated understanding of what the algorithm looks for and how to provide supplemental data that changes the scoring outcome.

2031 and Beyond: The New Normal

When the WISeR Model reaches its planned endpoint in 2031, one of two things will happen: CMS will make it permanent and expand it nationwide, or it will evolve into a successor model that builds on the same AI-driven framework. Either way, the direction is set.

AI-driven prior authorization for wound care isn’t an experiment anymore. It’s the future. And the practices that started preparing in 2026 will have five years of operational refinement, documentation excellence, and billing expertise that latecomers can’t replicate overnight.

The question isn’t whether this is coming to your practice. It’s whether you’ll be ready when it arrives.

The Strategic Decision: Build or Partner?

Here’s the honest assessment. Building the internal infrastructure to handle AI-driven wound care authorization — structured documentation systems, episode-based billing expertise, algorithmic denial appeal capabilities, continuous staff training — is a massive undertaking. For large health systems with dedicated resources, it might be feasible.

For most wound care practices? The smarter move is to outsource medical billing services to a partner who’s already living this transition. A team that’s been working in pilot states, refining workflows against real AI authorization systems, and building the institutional knowledge that only comes from hands-on experience.

Because five years sounds like a long time. Until it isn’t.

FAQs

Is the WISeR Model guaranteed to expand nationwide by 2031?

Not guaranteed, but highly likely based on CMS’s historical pattern with demonstration projects. The six-year pilot timeline through 2031 provides ample data collection runway, and CMS has signaled strong interest in AI-driven authorization standardization across specialties.

When should wound care providers outside pilot states start preparing?

Now. Providers who use 2026-2027 to audit documentation infrastructure, invest in digital measurement tools, and establish specialized billing partnerships will have a three-to-four-year head start over those who wait for formal expansion announcements.