Glossary · Reimbursement

Capitation

Capitation is a reimbursement model in which a payer pays a provider or health plan a fixed, per-member-per-month (PMPM) amount in advance—regardless of how many services that patient actually uses during the period.

Verified May 8, 2026 · 4 sources ↓

Drawn from CMSAAOSAAHKS

Definition

Source · Editorial summary grounded in 4 cited references ↓

Under capitation, the payer (an insurer, Medicare, Medicaid, or a managed-care organization) calculates a prospective payment rate and sends that flat fee to the provider or health plan for each enrolled member every month. The provider then assumes financial responsibility for covering whatever services those members need. If a patient uses fewer services than the capitation rate implies, the provider keeps the surplus; if a patient uses more, the provider absorbs the loss. Risk adjustment formulas—such as the CMS Hierarchical Condition Category (HCC) model—are used to calibrate PMPM rates so that panels with sicker patients generate higher payments, reducing the incentive to avoid high-utilizers.

In orthopedic practice, capitation most commonly surfaces in two ways: (1) a surgeon or group is contracted with a managed-care plan under a global capitation or specialty capitation arrangement, receiving a fixed monthly payment to cover all musculoskeletal care for a defined population; and (2) CMS Innovation Center models—such as ACO REACH, the Primary Care First Model, and the Vermont All-Payer ACO Model—include capitated or pre-payment components that can flow downstream to specialists participating in those networks. Under CMS's Financial Alignment Initiative for dual-eligible beneficiaries, CMS and the state jointly pay Medicare-Medicaid Plans a prospective capitation rate through a formal three-way contract.

Because payment is prospective and fixed, capitation fundamentally shifts utilization risk from the payer to the provider. This contrasts with fee-for-service (FFS), where each CPT code generates a discrete payment, and with bundled payment, where a single episode-based amount covers a defined care period. Orthopedic groups operating under capitation still use CPT and ICD-10 codes for internal tracking, quality reporting, and stop-loss calculations—but those codes do not individually trigger revenue.

Why it matters

An orthopedic practice that misunderstands its capitation contract can face serious financial harm: if the PMPM rate was negotiated without accurate HCC risk scores or without carve-outs for implant costs, high-acuity patients (e.g., those needing revision TJA or complex spine surgery) will generate losses on every case. Conversely, under-coding diagnosis complexity at the time of visit suppresses the risk-adjustment data payers use to set future capitation rates—directly reducing next-year PMPM revenue. Practices must also recognize that capitated members cannot be billed additional per-visit fees for covered services, and doing so exposes the group to payer audits, contract termination, and potential False Claims Act liability.

Common mistakes

Where people most often go wrong with this concept.

Source · Editorial brief grounded in cited references ↓

Negotiating a flat PMPM rate without analyzing the actual age, comorbidity, and utilization profile of the assigned panel—leading to chronic underpayment for high-acuity populations.
Failing to document and submit diagnoses with full HCC specificity (e.g., coding 'osteoarthritis' without laterality or severity detail), which artificially lowers risk scores and depresses future capitation rates.
Billing individual CPT codes—and expecting FFS payment—for services already covered under the capitation contract, triggering claim denials and potential double-billing audits.
Confusing capitation with bundled payment: bundled payment covers a discrete episode triggered by a procedure, while capitation covers a defined population over a defined time period regardless of whether any procedure occurs.
Overlooking stop-loss (reinsurance) provisions: practices that do not negotiate per-member stop-loss thresholds bear unlimited risk on catastrophic cases such as multi-level spinal fusion or periprosthetic joint infection.
Assuming capitation eliminates the need for CPT and ICD-10 coding discipline—internal tracking, quality measure reporting, and stop-loss triggers all depend on accurate code capture even when individual codes don't generate direct payment.

Frequently asked questions

Source · Generated from the editorial pipeline, verified against 4 cited references ↓

01Does capitation mean we stop using CPT codes entirely?

No. CPT and ICD-10 codes remain essential for internal utilization tracking, quality measure reporting, stop-loss calculations, and carve-out billing. What changes is that individual CPT codes no longer generate discrete FFS payments for services covered under the capitation contract.

02How does CMS set capitation rates for dual-eligible plans?

Under CMS's Financial Alignment Initiative, CMS and the state jointly determine prospective capitation rates for Medicare-Medicaid Plans using a joint rate-setting process. Rates are risk-adjusted using the CMS-HCC model to account for differences in enrollee health status across plan panels.

03What is a stop-loss provision and why does it matter in orthopedics?

A stop-loss (or reinsurance) clause limits the provider's financial exposure once a single member's costs exceed a negotiated threshold. In orthopedics, where a single revision arthroplasty or complex spine case can cost six figures, negotiating a low stop-loss attachment point is critical to protecting the practice from catastrophic losses under capitation.

04Can a capitated patient be balance-billed for copays or additional services?

Only for services explicitly carved out of the capitation contract. For services covered under the capitation rate, billing the patient additional amounts is prohibited under most managed-care contracts and can constitute a contract breach or, in government programs, a False Claims Act violation.

05How does capitation differ from a bundled payment model?

Bundled payment covers a specific episode of care (e.g., 90-day hip replacement episode) triggered by a discrete procedure, and payment is reconciled against actual costs post-episode. Capitation covers an entire enrolled population over a rolling time period regardless of whether any particular procedure is performed—it is population-based rather than episode-based.

06Which CMS Innovation Center models use capitation or pre-payment?

As of 2024, CMS Innovation Center models that include capitated or pre-payment components include ACO REACH, the Kidney Care Choices Model, the Maryland Primary Care Program (part of the Maryland Total Cost of Care Model), the Primary Care First Model, and the Vermont All-Payer ACO Model.

Sources & references

Editorial content was developed using the following public sources. Last verified May 8, 2026.

Mira AI Scribe

Mira note for capitated encounters: Even though capitation pays a flat PMPM rather than per code, Mira still captures full diagnosis specificity on every visit note. Accurate ICD-10 coding—including laterality, severity, and all active comorbidities—feeds the HCC risk-adjustment data that payers use to set next-year PMPM rates. Undercoded diagnoses = lower risk scores = lower future capitation revenue. Mira will flag visits where a chronic musculoskeletal condition (e.g., osteoarthritis, inflammatory arthropathy, post-surgical status) is documented in the note but not carried forward to the assessment/plan, and will prompt the clinician to confirm or add the ICD-10 code before sign-off. Mira will also alert the billing team when a service rendered appears to be covered under an active capitation contract so that individual CPT codes are not inadvertently submitted for FFS payment—preventing duplicate-billing exposure. For practices participating in CMS Innovation Center models (ACO REACH, Primary Care First, Vermont All-Payer ACO), Mira tags the relevant model identifier in the encounter metadata so that quality and utilization reports align with program-specific reporting requirements. Stop-loss thresholds configured in practice settings will trigger an automatic notification when a single member's projected episode cost approaches the per-member reinsurance attachment point.

See Mira's approach

Related terms

Bundled payment Reimbursement

A bundled payment is a single, predetermined reimbursement covering all provider services related to a defined clinical episode—such as a total joint replacement—rather than separate fee-for-service payments for each individual service delivered.

Value-based care Reimbursement

Value-based care (VBC) is a reimbursement framework that ties provider payment to quality outcomes and cost efficiency rather than to the volume of services delivered. In orthopedics, it replaces or supplements traditional fee-for-service payments with alternative payment models (APMs) that reward coordinated, high-quality musculoskeletal care.