Monitor
Signs, symptoms, labs or disease status followed over time. Stable, worsening or improving all count as monitoring.
status & trendHere is the short version. Under the CMS RADV Final Rule, one unsupported HCC pulled in the sample no longer costs you one recovery. It gets extrapolated across the contract. The fix is not more coders arguing after the fact. It is proving Monitor, Evaluate, Assess or Treat evidence before the chart is ever sampled.
A diagnosis you cannot defend with Monitor, Evaluate, Assess or Treat evidence is not a coding gap. In an extrapolated RADV audit it is a contract-level liability, because the auditor multiplies your error rate against the whole population.
Why the stakes changed
CMS finalized contract-level extrapolation in its RADV Final Rule (CMS-4185-F2), applying extrapolated recovery beginning with payment year 2018 and declining to apply a Fee-for-Service Adjuster. That is the whole shift in one sentence: the sample now speaks for the population.
A single HCC with no MEAT support, followed through the audit.
Before extrapolation, that unsupported code was a single-member takeback. After the RADV Final Rule, the confirmed error rate in your sample is projected across the enrollment it represents. The chart did not get more expensive. The consequence of the same chart did.
The standard that survives review
MEAT is the documentation-integrity framework coders and auditors share for proving a condition was truly present and managed during the encounter. A code needs at least one leg to stand on. RADV-grade codes usually show more than one.
Signs, symptoms, labs or disease status followed over time. Stable, worsening or improving all count as monitoring.
status & trendTest results reviewed, response to treatment weighed, findings interpreted in the note rather than just ordered.
results reviewedThe condition named in the clinical assessment with a decision attached. A problem list mention alone is the classic RADV soft spot.
named + decidedMedication, therapy, referral, procedure or an active plan. The most defensible leg because it is hard to fabricate after the visit.
plan of careWhen I validate a sampled HCC, I am not hunting for the ICD-10 code. I am hunting for the encounter-year proof that the condition was real and managed. A diagnosis carried forward on a problem list with nothing done about it reads to me as unsupported, and unsupported is what gets extrapolated.
Same code, two fates
The codes that scare me are not the wrong ones. They are the lonely ones. A perfectly valid HCC sitting in a note with no monitoring, no plan, nothing an auditor can hold. I would rather query the provider today than defend that chart during extrapolation, because by then it is not one member, it is the cohort.
Cited by name
Establishes contract-level extrapolation of RADV audit findings beginning with payment year 2018 and finalizes that CMS will not apply a Fee-for-Service Adjuster. This is why a sampled error now travels.
Extrapolation + no FFS AdjusterThe Monitor, Evaluate, Assess or Treat framework that CDI teams and auditors apply to confirm a condition was present and managed during the encounter, not just carried forward on a list.
Monitor / Evaluate / Assess / TreatEffective October 1, 2025 through September 30, 2026. Governs code specificity, coding only conditions that coexist and affect care, and reporting from provider documentation of the encounter.
FY2026, effective Oct 1 2025The 2024 model phased in through 2026, reaching full weight in payment year 2026. It reshapes which conditions map to an HCC, so documentation that mapped cleanly under V24 must be re-checked against V28.
Full V28 in PY2026The compliant-query discipline that lets a coder resolve a documentation gap with the provider before the record is final, rather than assuming intent after the fact.
Compliant provider queryRisk-adjustment coding is tied to the audited service year. A condition must be documented and managed in that year to support its HCC, a point extrapolated sampling tests directly.
Encounter-year evidenceClose the gap before the audit does
Run each risk-adjusting code through the four-word test at the point of coding. Any code with zero legs is a query, not a submission.
Confirm the conditions you rely on still land in an HCC under the 2024 model at full 2026 weight, and refresh documentation prompts where they moved.
A compliant provider query closes an Assess or Treat gap when the record is open. After the sample is drawn, the same gap is an extrapolated takeback.
Pull a representative sample and validate it against the RADV Final Rule standard now. Find the unsupported codes yourself, before the error rate is the one that gets multiplied.
ASP-RCM Solutions built its V28 risk-adjustment engine to flag the lonely codes, the problem-list carryovers and the V24-to-V28 drops that collapse under extrapolation, then route them to a compliant query while the record is still open. That is the difference between defending a chart and never needing to.
Pre-audit your risk-adjustment exposureRelated reading
A side-by-side matrix pairing common HCC-driving diagnoses with the exact MEAT evidence an extrapolated 2026 R
Read →BriefingThe 2026 chronic-condition recapture checklist our CMS-HCC V28 engine runs on every chart, surfacing suspected
Read →Field noteHow HCC recapture suspect analytics finds the chronic conditions your charts already support, closes real gaps
Read →