Value-Based Care Billing Guide 2026: MIPS, APMs, and Getting Paid Under VBC
Value-based care billing in 2026 runs on two tracks: fee-for-service claims with MIPS quality reporting, and alternative payment model (APM) arrangements with prospective or shared-savings payment structures. Getting paid well under VBC requires billing care management codes your fee-for-service billing team often misses (CCM, TCM, AWV, RPM), scoring at or above 75 MIPS points to avoid the 9% penalty, and — if you have the patient volume — qualifying as an APM participant to access the $33.5675 conversion factor instead of $33.4009.
What Is Value-Based Care Billing?
Value-based care (VBC) billing is the process of coding, submitting, and managing revenue under programs that tie payment to patient outcomes rather than the volume of services delivered. It contrasts with fee-for-service billing, where every procedure or visit generates a claim regardless of whether the patient's condition improved.
In practice, VBC billing does not mean abandoning CPT codes. It means adding a tracking and reporting layer — MIPS measure reporting, care management code submission, quality outcome documentation — on top of your existing claims workflow. The billing infrastructure required for VBC differs from fee-for-service primarily in what you bill (care management codes, not just procedures), what you track (quality measures, cost benchmarks), and how your payment is calculated (base rate plus or minus an adjustment).
For billing and RCM teams in 2026, VBC is no longer optional for Medicare. The question is how well your practice is positioned to capture the revenue it offers — and avoid the penalties it imposes.
The Two-Track VBC Payment Structure in 2026
Medicare's value-based payment system operates on two separate tracks, and most practices are on one or the other:
Track 1: MIPS (Merit-Based Incentive Payment System)
MIPS applies to the majority of Medicare physicians. It calculates a composite score from four performance categories and applies a payment adjustment — positive, neutral, or negative — to all Medicare claims two years later. The 2026 MIPS performance year determines 2028 payment adjustments.
Track 2: APM (Alternative Payment Model)
Practices that participate in a qualifying APM and reach the patient volume or payment thresholds to be designated Qualifying Participants (QPs) exit MIPS. They receive a separate, higher conversion factor ($33.5675 in 2026 versus $33.4009 for non-QPs) plus any shared savings or capitation payments from the APM arrangement itself.
Not every APM qualifies. CMS maintains a list of eligible Advanced APMs — ACO REACH, the Medicare Shared Savings Program (MSSP), certain bundled payment models, and specialty-specific APMs. Participating in a commercial ACO or payer-aligned VBC contract does not automatically qualify a physician for QP status.
MIPS 2026: Scoring, Weights, and the 75-Point Threshold
The 2026 MIPS performance threshold is 75 points. CMS confirmed this threshold through the 2028 performance year. Practices at or above 75 points receive a neutral or positive adjustment. Practices below 75 face a linear penalty on their 2028 Medicare payments, maxing out at negative 9% for scores at or below 18.75 points.
2026 MIPS Performance Category Weights
| Category | Weight | How to Score Well |
|---|---|---|
| Quality | 30% | Report 6 measures including 1 outcome or high-priority measure; choose measures where your data is strong |
| Cost | 30% | Calculated from claims by CMS — manage total cost of care by reducing unnecessary testing and avoidable readmissions |
| Promoting Interoperability | 25% | Complete all required objectives with certified EHR; e-prescribing rate, health information exchange, patient access measures |
| Improvement Activities | 15% | Complete 2 medium-weighted or 1 high-weighted activity for 90 days; care coordination, telehealth expansion, and population health activities all qualify |
The 30% Quality weight is where most practices leave points on the table. Measure selection matters — choosing measures where your patient population performs near or above the benchmark earns more decile points than choosing familiar measures where your data is weak.
Common MIPS Scoring Mistakes Billing Teams Make
- Reporting the wrong denominator population. MIPS quality measures have specific denominator criteria. Claims-based measures use the full Medicare patient population; registry-based measures may use a filtered subset. Submitting quality data with the wrong denominator inflates or deflates your measure rate and changes your score.
- Missing the outcome measure requirement. At least one of your six quality measures must be an outcome measure or a high-priority measure (appropriate use, patient experience, efficiency). Submitting six process measures without an outcome measure results in a score cap.
- Forgetting to submit Promoting Interoperability data. At 25% of the MIPS score, PI is the largest single category. Practices that fail to attest PI receive zero points for that category — equivalent to a 25-point deficit before the other categories are calculated.
- Not tracking small-group or individual reporting thresholds. Groups with fewer than 16 clinicians are subject to different rules than large groups. Some measures require a minimum case count; if your data falls below the threshold for a measure, it is not scored and you must select an alternate.
APM Track: ACO REACH Ends, ACO LEAD Begins
The most significant APM structural change in 2026 is the scheduled conclusion of ACO REACH and the launch of its successor, ACO LEAD, on January 1, 2027.
ACO REACH: Final Performance Year 2026
ACO REACH (Realizing Equity, Access, and Community Health) is a direct-contracting ACO model that runs through December 31, 2026. REACH participants receive either Global Capitation, Professional Capitation, or Standard/New Entrant arrangements with CMS, taking on varying levels of financial risk in exchange for shared savings on their attributed patient panel.
The persistent complaint from REACH participants was benchmark resetting: CMS recalculated performance benchmarks annually based on historical costs, which meant that ACOs that successfully reduced costs had their own efficiency used against them in the following year's benchmark — eliminating much of the financial upside of shared savings.
ACO LEAD: Launching January 1, 2027
ACO LEAD (Level of Access, Equity, and Design) launches as the REACH successor in January 2027. Its core structural changes address the benchmark resetting problem directly:
- 10-year performance period — the model commits to a decade-long runway, giving ACOs time to invest in care coordination infrastructure without worrying about annual model termination.
- Benchmarks set once, never reset — the ACO's cost benchmark is established at the start of the model period and held fixed, allowing ACOs to retain the financial benefit of cost reductions they achieve year-over-year.
- Prospective capitated payments — ACO LEAD maintains the prospective payment structure from REACH, where payments flow to the ACO based on attributed population rather than retrospective settlement.
- Enhanced equity focus — the model includes measures and incentives related to health equity, including performance adjustments for serving underserved populations.
For practices currently in ACO REACH, the 2026 performance year is the last one. Decisions about ACO LEAD participation (or joining another APM) must be made before the 2027 enrollment window closes.
The APM Conversion Factor Advantage: How Much Money Is at Stake?
In 2026, qualifying APM participants receive $33.5675 per RVU versus $33.4009 for non-participants. The 0.51% difference seems small per claim, but across a full year's Medicare volume it adds up consistently:
| Annual Medicare Revenue | APM CF Gain (0.51%) | Before Shared Savings |
|---|---|---|
| $500,000 | $2,550 / year | Direct CF gain only |
| $1,000,000 | $5,100 / year | Direct CF gain only |
| $2,000,000 | $10,200 / year | Direct CF gain only |
| $5,000,000 | $25,500 / year | Direct CF gain only |
The conversion factor gain is the floor — practices in high-performing ACOs also receive shared savings distributions that can add six or seven figures annually for mid-size and large practices. The CF gain is simply the guaranteed minimum of APM participation.
Care Management CPT Codes: The Most Underutilized VBC Revenue
The single largest billing gap in most primary care and internal medicine practices moving toward VBC is care management code utilization. These codes are exempt from the 2026 efficiency adjustment, reimburse at rates well above typical E/M visit margins, and align directly with the cost reduction goals of value-based programs.
| Code | Service | Approx. Medicare Rate (2026) | Key Requirement |
|---|---|---|---|
| 99490 | Chronic Care Management — first 20 min/month | ~$62/month | 2+ chronic conditions, written care plan, patient consent |
| 99491 | CCM — physician-directed, 30 min/month | ~$85/month | Must be performed by physician or QHP directly |
| 99487 | Complex CCM — first 60 min/month | ~$130/month | Moderate-to-high complexity; care plan revision required |
| 99495 | Transitional Care Management — moderate complexity | ~$165/episode | Contact within 2 business days; face-to-face within 14 days |
| 99496 | Transitional Care Management — high complexity | ~$230/episode | Contact within 2 business days; face-to-face within 7 days |
| G0438 | Annual Wellness Visit — initial | ~$177 | First AWV; no copay or deductible applies |
| G0439 | Annual Wellness Visit — subsequent | ~$118 | Annual; must include health risk assessment update |
| 99457 | Remote Patient Monitoring — first 20 min/month | ~$50/month | Device must transmit data; 16+ days of readings required |
| 99458 | RPM — additional 20 min/month | ~$41/month | Add-on to 99457; same device/same month |
A primary care panel of 500 Medicare patients with chronic conditions — 70% of whom are eligible for CCM — represents over $21,000 per month in available care management revenue at the basic 99490 rate alone. Most practices bill fewer than 15% of eligible patients for CCM, leaving the remainder of that revenue uncollected.
FFS vs VBC: What Changes in the Billing Workflow
Fee-for-service and value-based care billing share the same claim submission infrastructure. The operational differences are in what you bill, what you track, and what you document:
| Billing Function | FFS Approach | VBC Approach |
|---|---|---|
| Revenue driver | Procedure/visit volume | Claims + quality adjustment + shared savings |
| Code mix | E/M + procedures | E/M + procedures + CCM/TCM/AWV/RPM |
| Quality reporting | None or MIPS minimum | MIPS data submission + outcome measure documentation |
| Patient documentation | Visit-level notes | Care plans, time logs (CCM requires monthly minute tracking) |
| Consent requirements | Standard HIPAA | Written patient consent required for CCM and RPM billing |
| Claim volume | High — each encounter generates a claim | Lower encounter claims; more monthly care management claims |
What Billing and RCM Teams Must Do Right Now
For practices on either the MIPS or APM track, the following actions apply directly to billing team workflows in 2026:
Audit CCM and TCM Billing Rates
Run a report of all patients billed for CCM (99490, 99491, 99487, 99489) in the past 12 months. Compare that list against your population of patients with two or more chronic conditions. The gap between eligible patients and billed patients is revenue left on the table. For TCM (99495, 99496), run a discharge report from any inpatient or skilled nursing facility stay and verify that a TCM claim was submitted within the allowable timeframe for each discharge.
Verify Consent Documentation Before Billing CCM
CCM billing requires documented patient consent prior to the first monthly billing cycle. This consent must be in the patient's chart. Medicare audits of CCM claims consistently flag missing consent as the primary denial trigger. Verify that your EHR workflow captures consent status before submitting 99490 or related codes.
Confirm MIPS Submission Pathway
Before mid-year, confirm your MIPS submission method for the 2026 performance year: electronic health record, Qualified Clinical Data Registry (QCDR), Qualified Registry, claims-based, or direct attestation for small practices. Each method has different data capture workflows. Changing methods mid-year may require rebuilding your measure tracking from scratch.
Review APM Participation Status
If your practice is in an ACO REACH arrangement, confirm your 2026 QP status and begin evaluating ACO LEAD enrollment options for 2027. If you are not currently in an APM, model whether your practice's Medicare volume is sufficient to reach QP thresholds — either the 25% payment threshold or 20% patient count threshold — through MSSP or another eligible APM.
Separate Quality and Cost Tracking from Claim Submission
MIPS Cost scoring is calculated automatically by CMS from claims data. You cannot submit cost data directly. However, you can influence your Cost score by reducing unnecessary testing, closing care gaps that drive emergency department visits, and improving care coordination to reduce avoidable readmissions — all of which reduce your total cost of care attribution. These are clinical workflows, but billing teams can monitor cost performance through the QPP portal and flag trends.
Frequently Asked Questions
What is value-based care billing?
Value-based care billing is the process of coding and submitting claims, tracking quality measures, and managing revenue under contracts and programs that tie payment to patient outcomes rather than volume of services. In practice this means billing care management codes (CCM, TCM, AWV), reporting MIPS performance data, participating in ACO shared savings arrangements, and coding outcome-aligned chronic care visits. The billing infrastructure required for VBC differs from fee-for-service primarily in the tracking and reporting layer, not in CPT code submission itself.
What is the MIPS performance threshold for 2026?
The 2026 MIPS performance threshold is 75 points out of 100. Practices at or above 75 points receive a neutral or positive payment adjustment to their 2028 Medicare payments. Practices below 75 receive a linear penalty, with the maximum penalty of negative 9% applied to scores at or below 18.75 points. CMS confirmed the 75-point threshold will remain stable through the 2028 performance year.
What is the difference between ACO REACH and ACO LEAD?
ACO REACH (Realizing Equity, Access, and Community Health) is a CMS direct-contracting ACO model that runs through December 31, 2026. ACO LEAD (Level of Access, Equity, and Design) is its successor, launching January 1, 2027. ACO LEAD introduces a 10-year performance period, prospective capitated payments, and benchmarks that are set once and never reset — addressing the major complaint from REACH participants that annual benchmark resets eliminated earned shared savings.
How much more do APM participants get paid than non-APM physicians in 2026?
In 2026, qualifying APM participants (QPs) receive a conversion factor of $33.5675 versus $33.4009 for non-participants. The 0.51% difference per RVU compounds across a full year's claim volume. For a practice billing $2M in annual Medicare, the APM advantage is approximately $10,200 per year in direct conversion factor gains — before any shared savings distributions, quality bonuses, or cost reduction payments from the APM arrangement itself.
Which CPT codes are most important for value-based care billing?
The highest-impact codes for value-based care revenue are: Chronic Care Management (99490, 99491, 99487, 99489) — approximately $62–$130/patient/month; Principal Care Management (99424–99427) for single-condition chronic care; Transitional Care Management (99495–99496) for post-discharge follow-up; Annual Wellness Visit (G0438, G0439) for preventive care; and Remote Patient Monitoring (99453, 99454, 99457, 99458) for enrolled RPM patients. These codes are exempt from the 2026 efficiency adjustment, making them increasingly valuable relative to procedure codes.