RCM Pulse Weekly

Medicare Reprices 1,171 Lab Codes Downward: The Preliminary 2027 Lab Fee Schedule Averages 16% Below 2026, 775 Tests Take the Full 15% Cut — and the Comment Clock Runs Out Around October 21

On September 21, 2026, CMS posted the preliminary CY 2027 Clinical Laboratory Fee Schedule (CLFS) rates — the weighted median private-payer rates that will reset what Medicare pays for clinical diagnostic lab tests starting January 1, 2027. The data comes from the second full reporting cycle required under the Protecting Access to Medicare Act of 2014 (PAMA), and CMS’s conclusion is blunt: Medicare has been paying roughly 16% more for lab services than private payers do.

Of the 1,947 HCPCS codes on the fee schedule, 1,528 had enough reported data to calculate a weighted median. Of those, 1,171 came in lower than the 2026 Medicare rate, 186 came in higher, and 169 were unchanged. The rates were computed from 6,304 laboratories after exclusions (6,411 submitted), using private-payer data collected January 1 through June 30, 2025 and reported May 1 through July 31, 2026.

The 15% Cap Is What Keeps This From Being a Cliff

The realized cut in 2027 will be smaller than the raw data implies, because 2026 federal budget legislation capped CLFS reductions at 15% per year for 2027 through 2029. That cap is doing a lot of work. Before it is applied, the category-level reductions look like this:

Read that table as a three-year glide path, not a one-year event. A code whose private-payer median sits 23% below its current Medicare rate takes 15% in 2027 and the balance in 2028. Any practice running an in-office lab — chemistry panels in primary care, urinalysis and cultures in urology, molecular testing in oncology, GI pathogen panels — should be modeling 2027 and 2028 now, because the 2028 number is already visible in this data.

The Legislative Track

The bipartisan RESULTS Act (H.R. 5269), cosponsored by 62 Republicans and 59 Democrats, would replace the 15% annual cap with a 5% cap. It has not moved. Until it does, budget against the 15% figure.

Meanwhile, October 1 Arrives Without a Shutdown

One thing practices do not have to plan for next week: a Medicare claims hold. Congress cleared a continuing resolution on September 1 — 370–48 in the House after a 90–6 Senate vote — and the President signed it on September 2, funding the government through December 11, 2026. Last year’s 43-day shutdown began on October 1 and briefly froze telehealth claims; this year, October 1 is a normal claims day. Medicare telehealth flexibilities, extended by the Consolidated Appropriations Act, 2026, run through December 31, 2027. The next funding cliff is 77 days away.

Aetna Folds Four Cancer Authorizations Into One, Cigna’s Algorithm Keeps Downcoding Level 4 and 5 Visits — and Humana’s 600,000 Non-Renewal Letters Are Dated October 2

Last week this newsletter covered UnitedHealthcare’s October 1 removal of prior authorization on roughly 1,700 codes. This week the payer story splits three ways: one insurer consolidating authorizations, one insurer automating payment reductions, and one insurer shrinking its Medicare Advantage footprint. All three change what your front desk and billing team do in the fourth quarter.

Aetna: One Authorization for the Whole Cancer Treatment Plan

Aetna is bundling separate prior authorizations for cancer treatment — chemotherapy, immunotherapy, and radiation oncology services — together with the associated imaging, including MRI and CT. Providers previously submitted an average of four separate prior authorizations per Aetna member with cancer. The pilot, launched last summer for lung, breast, and prostate cancers, saw nearly 25% of eligible members use the bundle.

The bundle became available to Medicaid members in eligible states on September 2, with the fall rollout covering Oklahoma, Illinois, Maryland, New Jersey, Virginia, Florida, Kentucky, and West Virginia. Full rollout to Medicare and commercial members is planned for the first half of 2027. Aetna covers 26 million members. Separately, insurers participating in the HHS prior authorization pledge have cut 11% of preapprovals since last summer.

Cigna: The Downcoding Policy Is Now a Year Old and Still Running

Cigna’s E/M Coding Accuracy Policy (R49), in effect since October 1, 2025, allows the payer to automatically reduce level 4 and 5 E/M claims by one level when its claims algorithm decides the submitted diagnoses do not support the complexity billed. The codes in scope are 99204, 99205, 99214, 99215, 99244, and 99245. On September 3, 2026, the American Academy of Otolaryngology–Head and Neck Surgery submitted formal opposition letters to Cigna challenging the policy. Several Blue Cross Blue Shield licensees have acknowledged similar recoding practices in specific situations.

The practical point: a downcoded claim is paid, not denied, so it rarely appears on a denial report. The only way to see it is payment variance analysis — comparing the CPT billed to the CPT adjudicated on the 835. If your denial dashboard is clean and your Cigna E/M revenue per visit is falling, this is why.

Humana: 600,000 Members, Letters Dated October 2

Humana confirmed on its July 29 earnings call that Medicare Advantage plan exits for 2027 will affect about 600,000 members — roughly 8% of its 7.2 million MA members — concentrated in plans rated 3.5 stars or lower. Federally required non-renewal notices are dated October 2, and Medicare open enrollment runs October 15 through December 7. Humana recaptured just over 40% of members affected by its 2025 exits and expects a similar share this time.

Oracle Pushes AI Upstream Into Scheduling and Financial Clearance — While Only 19% of Practices Already Using AI Say It Has Actually Reduced Their Work

At its Health and Life Sciences Summit in Orlando on September 23, 2026, Oracle Health announced a set of AI capabilities spanning scheduling, financial clearance, clinical documentation, charge capture, billing, and payment. The framing was explicit: move AI upstream, to catch denials, missing information, authorization problems, and inaccurate charges before they become rework. The capabilities are planned for general availability “in the coming months.”

What Oracle Actually Announced

No customer names, performance metrics, or dates were attached. That is not unusual for a conference announcement, but it matters for how you file it: this is a roadmap, not a result. Note also where the list starts — with prior authorization — and where it ends — with underpayment detection rather than denial appeals. That last detail lines up with the Cigna downcoding problem in Section 02: the revenue a practice loses to a paid-but-reduced claim is invisible to a denial-centric workflow.

The Number That Should Anchor Every AI Conversation This Fall

Black Book’s September 2026 preconference flash survey of 1,184 physician-practice executives, released September 24 ahead of next week’s MGMA Annual Conference, found that only 19% of current AI users report meaningful net work reduction. Buyers have responded by raising the bar: 96% of AI evaluators require integration with existing systems, 89% require defined performance metrics before expanding, and 85% require measurable first-year productivity outcomes. A companion Black Book survey of 1,919 clinicians found 81% require daily workarounds and 65% lose 30 or more minutes a day to avoidable digital work.

The Coding-Intensity Side Effect

Ambient documentation is the AI category that has produced measurable change — and payers have noticed what it changed. Across large health systems adopting ambient scribes, visits have shifted toward higher-intensity E/M codes; one system saw a 5% increase in Level 5 encounters, worth more than $1,000 per provider per month. One 2026 study projected up to $2.3 billion in added healthcare costs industry-wide. Payers are answering with the automated downcoding described in Section 02. The operational lesson: if an ambient tool raises your level-of-service mix, your documentation has to support the new level on audit, because the payer’s algorithm will test it.

The Automation Stack, Late September 2026

Six Days, Four Code Files: ICD-10-CM, ICD-10-PCS, the October HCPCS Quarterly, and New NCCI Edits All Turn Over on Thursday, October 1

October 1, 2026 falls on a Thursday. That is the effective date for four separate code-file changes, each governed by date of service, not date of submission. Services on Wednesday, September 30 use the old files regardless of when they are billed; services on Thursday use the new ones.

The Three-Day Readiness Test

Last week’s issue walked through the ICD-10-CM deletions and demotions in detail (I42.0, Z68.1, the S23.42 series). This week the question is narrower: is the new code set actually installed and working? With six days left, there is time for exactly one round of testing.

• Monday–Tuesday: Confirm with your EHR and PM vendors, in writing, that the FY 2027 ICD-10-CM file and the October HCPCS file are loaded to production and will activate by date of service. Ask whether the NCCI Q4 edits are loaded into your claim scrubber — many practice scrubbers lag the CMS posting.
• Wednesday: Build test claims with an October 1 date of service using at least one new ICD-10-CM code and one deleted code. The new code should pass; the deleted code should be stopped by your scrubber, not by the payer.
• Thursday onward: Pull a daily rejection report by reason code for the first ten business days of October. Code-set rejections cluster in the first week; the practices that catch them early re-bill in days instead of weeks.

Downcoding Makes Your E/M Documentation a Coding Update, Too

Cigna’s R49 policy (Section 02) targets 99204, 99205, 99214, 99215, 99244, and 99245 based on the diagnoses on the claim. That turns diagnosis specificity into an E/M payment variable. A level 4 visit coded with a vague or unspecified diagnosis is the claim an algorithm downcodes; the same visit coded with the specific, supported comorbidities the physician actually addressed is the claim that holds. The October 1 ICD-10-CM update adds specificity in several areas — use it.

Patients Owe More and Pay Less: HCA Flags a Self-Pay Collections Slowdown as Members Slide From Silver to Bronze — and 32% of Groups See No-Shows Rising

Speaking at the Jefferies Healthcare Services and Technology Conference in Nashville on September 15, HCA Healthcare CFO Mike Marks described a pattern every practice billing office will recognize: patients are owing more because of benefit design across employer plans, Medicare Advantage, and the exchanges — including movement from silver to bronze plans — but they are not paying more. HCA has seen a slowdown in its ability to collect out-of-pocket amounts, which it attributes to energy costs, premiums, and inflation.

When the largest hospital operator in the country says its self-pay collections are slowing, a physician practice with a fraction of HCA’s patient financial services capacity should assume the same is happening to it — and that it is happening faster. An August 11 MGMA Stat poll found 32% of medical groups reporting higher no-show rates year to date, 58% about the same, and only 10% lower. Higher patient cost-sharing shows up first as a missed appointment and second as an unpaid balance.

The Bronze-Plan Problem Is a Timing Problem

A patient who moved from a silver to a bronze exchange plan for 2026 has a larger deductible, and the deductible resets January 1. That makes October through December the months when bronze-plan patients have finally met, or nearly met, their deductibles — and January through March the months when they owe the most per visit. Two practical consequences:

• Q4 is the window for deferred care. Patients who have met their deductible are the ones most likely to schedule the procedure they postponed. Outreach to those patients before December 31 is revenue that disappears on January 1.
• Q1 needs estimates at scheduling, not at check-in. The January patient with a reset deductible needs to hear the number before the visit, with a payment plan option, or the visit becomes a no-show or a bad-debt balance.

Where You Should Be — Patient Financial KPIs

Black Book Ranks the 2027 Practice Stack as 70% Plan Revenue Cycle Automation Spend — and 85% Demand Measurable First-Year Results

Black Book Research’s September 24 release names its top-rated medical group technology and services vendors, drawn from 2026 evaluation studies covering 9,018 medical practices, alongside a flash survey of 1,184 practice executives on what they plan to buy in 2027. The spending intentions are clear — and so is the skepticism.

What Practices Plan to Buy

The buying timeline is slow and getting slower: 17% expect a selection by Q1 2027, 20% in Q2, and 33% anticipate a purchase in late 2027. 93% favor solutions that integrate with their existing environment, and 70% prioritize a documented implementation and migration approach.

Black Book’s Top-Rated Vendors, by Category

The Deal Worth Watching Close

R1’s acquisition of Humata Health, announced in August, is expected to close at the end of the third quarter — which is next week. Humata’s agentic prior authorization technology reports a 96% first-pass approval rate, a 30% reduction in write-offs, and an 83% reduction in rescheduled appointments. It will be folded into R1’s Phare OS. Combined with Oracle’s autonomous prior authorization announcement and Infinx’s Black Book ranking, prior authorization is now the most crowded AI category in the revenue cycle — arriving just as UnitedHealthcare, Aetna, and the CMS-0057-F API mandate shrink the manual version of the work.

OIG Finds Roughly Four in Five Sampled Medicare Advantage Diagnoses Unsupported — and the Documentation Standard Behind That Finding Lives in Your Charts

On September 17, 2026, the HHS Office of Inspector General published compliance audits finding that Medicare Advantage plans operated by Humana and UnitedHealthcare received an estimated $177.8 million in overpayments for 2020 and 2021 after submitting diagnosis codes not supported by patients’ medical records.

OIG examined 11 groups of high-risk diagnosis codes, including acute stroke, heart attack, embolism, and sepsis — the conditions most often coded from a historical problem list rather than from a current, treated encounter. Both insurers said the methodology was skewed toward finding overpayments and that they do not plan to refund. Earlier in 2026, OIG issued similar audits of Blue Cross Blue Shield of Alabama, Gateway Health Plan, and Priority Health.

Why a Payer Audit Is a Practice Compliance Issue

Medicare Advantage risk-adjustment diagnoses are drawn from provider encounter records — the physician claim and the note behind it. The plan bears the refund; the practice bears the consequences that follow: more chart retrieval requests, more retrospective risk-adjustment reviews, and more payer scrutiny of diagnoses that appear on a claim without a matching assessment and plan in the note. The documentation standard is the same one CMS applies in RADV audits: a diagnosis counts if the record shows it was monitored, evaluated, assessed, or treated at that encounter.

The Rest of the Compliance Calendar

CMS separately barred 11 medical supply companies with more than $3.4 billion in suspected fraudulent billing in 2025 and 2026 from future Medicare Advantage and Part D payments — a reminder that DME referral relationships deserve an annual review.

On price transparency, the Transparency in Coverage proposed rule (CMS-9882-P) would move payer in-network rate and out-of-network allowed-amount files from monthly to quarterly updates and organize them by provider network rather than by plan. Comments closed February 23, 2026; a final rule has not yet been published. When it is, payer MRFs become a more usable benchmark for your own contract rates.

94% Say Costs Are Outrunning Reimbursement, 72% Can’t Keep Revenue Cycle Staff — and 1% of Physician Office Labs Helped Set Next Year’s Lab Rates

Black Book’s September flash survey is a practice-side survey, and its operational findings read like a portrait of the independent group:

Add 82% citing staffing shortages or labor costs and 79% reporting increased concern about cybersecurity risk. Only 16% are considering outsourcing administrative functions — which means the other 84% intend to solve a staffing problem with the staff they have, plus software.

How This Week’s News Lands on a Small Practice

The lab fee schedule was set without you. Only about 1% of physician office labs reported private-payer data in this cycle, compared with roughly 2% of all Medicare Part B labs and fewer than 20% of hospital outreach labs; hospital outreach labs made up 13.6% of all reporting labs. The rates your in-office lab will be paid in 2027 were derived largely from independent and hospital labs with very different cost structures and payer contracts. A small practice running CBCs, metabolic panels, and urinalysis in-house will absorb up to a 15% cut on rates it had essentially no role in setting. Run the in-office lab P&L against the capped 2027 rates and the 2028 remainder before renewing analyzer leases or reagent contracts.

Downcoding hits hardest where there is no one to catch it. A health system has a payer-contracting team running payment variance reports. A four-physician practice has a biller who posts the 835 and moves on. Cigna’s R49 reductions are paid claims — they do not generate a denial for anyone to work. The small practice is the one least equipped to notice.

Humana’s MA exits cost a small practice proportionally more. A practice with a concentrated Medicare panel in a market where Humana is exiting can see a meaningful share of its patients change payers on January 1. Each one is a re-verification, a new card, and potentially a new authorization for an ongoing treatment course.

The retention finding is the one to act on. When 72% of practices can’t keep revenue cycle staff, every workflow that depends on one experienced biller’s memory is a single point of failure. Documenting payer-specific rules — UHC’s code-and-plan PA list, Aetna’s oncology bundle, Cigna’s R49 codes — in a shared payer matrix is the lowest-cost retention insurance available.

Where You Should Be — Independent Practice Benchmarks

Oncology Gets a Single Authorization, Molecular Pathology Faces −22%, ENT Fights Cigna’s Downcoding, and Tele-Mental Health Keeps Its Waiver Through 2027

This week’s specialty picture is driven by three cross-cutting events — the preliminary lab fee schedule, Aetna’s oncology bundle, and Cigna’s E/M downcoding — landing unevenly across service lines.

This Week’s Action Items

Ten moves for the week of September 25, 2026 — each tied directly to something in this issue.

• Test the October 1 code files before Thursday. Get written confirmation from your EHR and PM vendors that FY 2027 ICD-10-CM, the October HCPCS quarterly, and the NCCI Q4 edits are in production. Submit a test claim dated October 1 with one new code and one deleted code; your scrubber, not the payer, should stop the deleted one.
• Reconcile drug codes against the October HCPCS file. Oncology, rheumatology, ophthalmology, urology, and allergy practices: check every J-code in your fee schedule against the October update before the first October infusion day.
• Run a Cigna payment variance report on level 4 and 5 E/M. Compare billed versus adjudicated CPT on 99204, 99205, 99214, 99215, 99244, and 99245 for the last six months. Downcoded claims are paid, not denied — they will not appear on your denial dashboard.
• Model your in-office lab at the preliminary 2027 CLFS rates. Apply the capped 15% reduction to 2027 and the remainder to 2028. If a high-volume code’s median looks wrong for your market, email CLFS_Annual_Public_Meeting@cms.hhs.gov by about October 21.
• Flag Humana MA patients in exiting plans. Non-renewal notices are dated October 2. Pull patients by plan ID, identify those in exiting plans, and tag their accounts for eligibility and authorization re-verification at the first January visit.
• Oncology: move authorization packet assembly to the treatment-planning visit. Aetna’s bundle covers chemotherapy, immunotherapy, radiation, and related MRI/CT in one request — Medicaid now, Medicare and commercial in the first half of 2027. Build the full packet once.
• Audit acute stroke, acute MI, and embolism codes on office-visit claims. These are among OIG’s high-risk groups. Any hit without a same-encounter assessment and plan should be recoded to the appropriate history code and the template fixed.
• Combine reminder, estimate, and payment link into one pre-visit message. With HCA reporting slowing self-pay collections and 32% of groups seeing more no-shows, send all three 72 hours out — and run Q4 outreach to patients who have met their deductibles.
• Write a one-line FTE-hour target for every AI tool you are evaluating at MGMA. Only 19% of AI users report meaningful net work reduction. Name the task, the hours it takes today, and who stops doing it on go-live day — then measure at 90 days.
• Document your best biller’s payer rules in a shared matrix. With 72% of practices struggling to retain revenue cycle staff, record UHC’s code-and-plan PA lists, Aetna’s oncology bundle, Cigna’s R49 codes, and your Humana exit list where the whole team can see them.