Layering behavioral health integration on top of APCM base codes is the most material decision a primary care practice makes after choosing to participate in APCM at all. The CY2026 PFS Final Rule introduced HCPCS codes G0568, G0569, and G0570 — APCM-aligned BH add-on codes the primary care practice bills under its own TIN, in the same month as the APCM base code. Done well, integrated BH expands clinical reach into the high-prevalence comorbid populations APCM already targets, captures meaningful additional reimbursement, and strengthens the practice’s position in value-based contracts. Done poorly, it creates compliance exposure and operational drag.

What does the CY2026 BH add-on actually deliver clinically?

The CY2026 APCM-aligned BH add-on codes (G0568, G0569, G0570) reimburse a structured, measurement-based behavioral health workflow integrated into primary care — not ad hoc behavioral counseling and not a referral-out program. The clinical model is the same evidence base CMS has built BHI policy around since CY2017: systematic screening, registry-based tracking, treatment-to-target, and access to psychiatric consultation, all coordinated by a designated behavioral health care manager working with the primary care team.

In practice, the integrated workflow includes validated screening (typically PHQ-9 for depression and GAD-7 for anxiety, with additional instruments for substance use and serious mental illness where indicated), longitudinal registry tracking of identified patients, structured weekly or biweekly outreach by a behavioral health care manager, brief psychotherapeutic interventions or care coordination delivered by that manager, regular case review with a consulting psychiatric provider, and measurement-based escalation when a patient is not responding to treatment. The CMS-finalized G0568-G0570 codes formalize reimbursement for this work alongside the APCM base service — per CMS PFS CY 2026 Final Rule.

The clinical literature on the Collaborative Care Model — the evidence-based predecessor to these add-on codes — is among the strongest in integrated medical-behavioral care, including the IMPACT trial (Unützer et al., JAMA 2002) and a substantial body of follow-on AHRQ-supported research. For background on the BHI framework itself, see What is BHI?.

How does the BH partner model work without violating AKS?

The partner model that most primary care practices use to deliver APCM + BH integration is structured around a fixed Fair Market Value Management Services Agreement, not a revenue-share. The primary care practice contracts with a dedicated behavioral health partner organization — for example, IBH or a comparable integrated BH organization operating under the Concert Health Model B analog — that supplies the clinical infrastructure the practice would otherwise have to build internally: a behavioral health care manager, access to a consulting psychiatric provider, registry technology, validated screening protocols, measurement-based care workflows, and clinical supervision.

The financial structure has three load-bearing properties:

• The PCP practice is the Medicare-billing entity. All APCM base codes (G0556, G0557, G0558) and all BH add-on codes (G0568, G0569, G0570) are billed under the PCP’s TIN, in the same calendar month, for the same patient — per CMS PFS CY 2026 Final Rule.
• The BH partner is paid a fixed FMV management fee under a Management Services Agreement. The fee compensates the partner for the clinical infrastructure and supervisory services provided. It is not contingent on Medicare reimbursement volume, not a percentage of collections, and not tied to per-claim throughput.
• The structure preserves the same-TIN constraint that CMS imposes on the BH add-on codes. The clinical work is delivered under arrangements that satisfy CMS supervision and “incident-to” requirements for the relevant codes.

This structure is the standard compliance posture for federal anti-kickback statute (AKS) and Stark Law alignment in BH partnership arrangements. Revenue-share arrangements between a referring entity (the PCP) and a clinical-service-providing entity (the BH partner) raise materially harder fraud-and-abuse questions; fixed-FMV management fees do not. Practices and partners that have attempted to structure compensation as percentages of Medicare collections have, in published OIG advisory opinions and settlement actions across the broader healthcare landscape, faced significant compliance scrutiny.

The practical implication: when evaluating a BH partner, the question is not “what percentage of our APCM reimbursement do they take” — that framing is the wrong one. The question is “what does the FMV management fee cover, and is the scope of clinical infrastructure adequate to deliver the integrated workflow CMS expects.”

Why is integrated BH high-value clinically?

Three reasons, in order of strategic weight.

Behavioral comorbidity in Medicare populations is high and underdiagnosed. Depression, anxiety, substance use disorder, and serious mental illness are well-documented comorbidities of the chronic medical conditions APCM targets — diabetes, heart failure, COPD, chronic kidney disease, and others. SAMHSA’s 2022 National Survey on Drug Use and Health and CMS chronic-conditions data both document substantial rates of these comorbidities among Medicare beneficiaries, particularly the multi-chronic and dual-eligible populations that map to APCM’s G0557 and G0558 tiers (SAMHSA NSDUH 2022; CMS Chronic Conditions Data Warehouse). USPSTF guidance recommends depression screening for adults including older adults (USPSTF, Final Recommendation Statement: Screening for Depression in Adults, 2023). A primary care panel running APCM without an integrated BH program is, in most cases, systematically failing to detect and treat conditions it is clinically responsible for.

Untreated behavioral health drives total cost of care. The Collaborative Care Model literature — IMPACT (Unützer et al., JAMA 2002), DIAMOND, and subsequent multi-site implementations — consistently shows improvement in depression outcomes, function, and downstream medical utilization when behavioral health is integrated into primary care. The total-cost-of-care impact is the mechanism by which integrated BH strengthens performance in value-based contracts (covered below).

Integrated BH improves the credibility of the APCM service itself. APCM’s bundled care-management service expects population-level risk stratification and longitudinal management. A care-management program that does not address the behavioral comorbidities present in roughly a quarter to a third of the panel is operationally incomplete — and increasingly visible as such to attribution-bearing payors and ACO partners.

What does the financial picture look like at a value level?

The APCM base codes G0556, G0557, G0558 pay tiered PMPM amounts that scale with clinical complexity, per CMS PFS CY 2026 Final Rule. The BH add-on codes G0568, G0569, G0570 expand monthly per-patient reimbursement materially when behavioral health is integrated into the care-management workflow for the relevant patients — also per CMS PFS CY 2026 Final Rule.

We deliberately do not publish specific dollar figures on this page. CMS PFS rates are geographically adjusted, the conversion factor is updated annually, and Final Rule rates published in late 2025 differ from proposed rates and from the CY 2025 baseline. Practices that anchor strategic decisions to rate figures from secondary sources frequently miscalculate, and a partner conversation is the right venue for practice-specific economic modeling. For a more detailed treatment of the financial framing, see The APCM Opportunity (pillar) and the planned cluster on APCM revenue potential in 2026.

At a value level, the relevant claim is this: for practices with substantial multi-chronic and BH-comorbid Medicare panels, the addition of G0568-G0570 to a base APCM program is one of the highest-leverage moves available in the CY2026 reimbursement landscape — both because the per-patient reimbursement is meaningful and because the underlying clinical work is, in most panels, already being attempted in some form without dedicated reimbursement.

What operational capabilities does BH integration require?

Integrated BH delivered to the standard CMS expects is not a workflow a primary care practice typically stands up from scratch. The required capabilities include:

• A behavioral health care manager (BHCM) working as part of the care team, with caseload management discipline, brief-intervention training (PST, BA, motivational interviewing), and measurement-based-care fluency.
• A consulting psychiatric provider available for case review, treatment recommendations, and direct consultation on escalations.
• A registry that tracks all identified patients, screening scores over time, treatment response, and patients who are not improving on current treatment.
• Validated screening at the point of care (PHQ-9, GAD-7, others as indicated) embedded into the primary care visit workflow, with results routed to the registry.
• Warm handoff capability between the PCP and the BHCM at the point of identification.
• Measurement-based treatment-to-target discipline — patients who are not responding within expected timeframes get escalated, not left at maintenance.

Each of those components has meaningful operational depth. This page deliberately does not walk through how to build them. The integrated workflow is the value the BH partner provides; describing how to assemble it independently would invert the strategic logic of the partnership. Practices that attempt to build the workflow internally without prior experience typically under-perform on both clinical outcomes and revenue capture.

How does this fit value-based contracts?

Integrated BH is one of the strongest moves a primary care practice can make to strengthen its position in value-based arrangements — across MIPS, Medicare Advantage Star Ratings, MSSP, ACO REACH, and commercial value-based contracts.

The mechanism is consistent across programs:

• Quality measure overlap. Several MIPS Quality measures and HEDIS measures directly reward depression screening (HEDIS DSF-E, CMS 2 in MIPS), follow-up on positive screens, depression remission and response (HEDIS DRR-E, DMS-E), and the closely related preventive-care set. Integrated BH operationalizes the workflows these measures require, rather than treating each measure as a separately tracked obligation. For background on the regulatory framework, see Quality Payment Program and HEDIS.
• Total cost of care. ACOs in MSSP, ACO REACH, and commercial total-cost-of-care contracts are evaluated on per-beneficiary spend. The Collaborative Care literature documents reductions in downstream medical utilization when behavioral health is integrated into primary care; the same mechanism is the value-based-contract thesis. See MSSP and ACO REACH for the contract structures.
• MA Star Ratings. The Stars program weights several measures that intersect directly with integrated BH — including medication adherence for behavioral conditions and the patient-experience measures that improve when BH access is non-fragmented.
• Risk adjustment and HCC capture. Integrated BH workflows surface previously undiagnosed depression, anxiety, and substance use disorder, which both improves clinical care and, where conditions are documented and treated, supports accurate HCC capture in MA and ACO REACH.

For a deeper treatment of how APCM fits the broader value-based-care landscape, see What is value-based care?.

What’s the next step?

The strategic case for integrated BH on top of base APCM is strong for practices with substantial multi-chronic and BH-comorbid Medicare panels. The operational case requires a partner that already has the BHCM workforce, psychiatric consultation capacity, registry, and screening workflows in production. The compliance case requires a fixed-FMV Management Services Agreement structure, not a revenue-share — and a partner that has structured prior arrangements to that standard.

If the practice already has an APCM program in place or is scoping one, the BH add-on conversation is part of the same partner discussion, not a separate program. For fit-assessment context, see Does APCM fit your practice? and APCM billing complexity.