2026 Behavioral Health Coding Guide for Physician Groups

Your behavioral health care manager submitted a clean 99484 claim. The E/M was documented, the time log was tight, the diagnosis codes matched. Anthem denied it. The denial says the service belongs to a behavioral health carve-out. The carve-out denies it too. Two weeks of appeals later, you're paid $87 for 20 minutes of monthly care management that cost your practice $92 to deliver.

This is the story Dr. William Sawyer, a family physician at Sharonville Family Medicine in Cincinnati, told KFF Health News in 2022. It is also the most common reason physician groups decide behavioral health integration is financially broken. The codes worked. The payment did not.

Most behavioral health coding guides stop at the CPT list. This one does not. Below you will find the 2026 code set for integrated behavioral health, the 2026 CMS migration from CPT 99492 to 99494 over to HCPCS G0568 to G0570, the real-world payer variance that determines whether any of these codes cash, and the business-case math that tells you whether a CoCM program is worth standing up in the first place.

The behavioral health coding stack for physician groups

A physician group's behavioral health coding stack has five tiers, arranged by how deeply behavioral health is integrated into the practice. Screening and brief intervention sit at the entry tier. Psychotherapy codes cover patients referred to embedded therapists. Health behavior assessment addresses physical conditions with psychological drivers. General BHI and Collaborative Care Management sit at the top, where the practice is actively co-managing the behavioral condition alongside the medical one.

The AMA organizes these services along a similar continuum. The tiers matter because each one maps to different staffing, documentation, and payer rules.

Tier 1: Screening and brief intervention

The foundational codes are SBIRT (99408, 99409), alcohol screening (G0442, G0443), depression screening (G0444), and the Behavior Change Interventions set (99406 to 99409). These are short, high-volume services that most primary care practices already deliver but fail to bill.

Tier 2: Psychotherapy and the physician add-ons

If your group has a behavioral health clinician on staff or under contract, the psychotherapy code set applies: 90791 and 90792 for diagnostic evaluation, 90832, 90834, and 90837 for time-based individual psychotherapy, 90846 and 90847 for family therapy, 90853 for group therapy, and 90839 and 90840 for crisis services. The codes solo-therapist guides stop at are only half of what a physician group needs. The other half is 90833, 90836, and 90838, the psychotherapy add-on codes physicians append to an E/M service when they deliver medication management and psychotherapy in the same visit.

Tier 3: Health behavior assessment and intervention

The 96156 to 96171 series covers psychological factors that affect a physical health condition. A cardiologist assessing adherence after an MI, a bariatric program evaluating readiness before surgery, or an oncology practice treating chemotherapy-related anxiety all bill here.

Tier 4: General Behavioral Health Integration (99484)

CPT 99484 pays for 20 minutes of care-management time per calendar month for a patient with any behavioral health diagnosis. The service requires an initiating E/M visit, patient consent, and systematic assessment and monitoring. The clinical staff delivering the service do not need formal behavioral health training, which is why 99484 is the lowest-friction entry point for a primary care group.

Tier 5: Collaborative Care (CoCM) and the 2026 code migration

The CoCM service pays a physician group to co-manage behavioral health conditions using a psychiatric consultant and a behavioral health care manager. This is the tier where the code set changed in 2026. According to the CMS CY 2026 Physician Fee Schedule final rule, for dates of service on or after January 1, 2026, the CoCM time-based codes 99492, 99493, and 99494 have been retired and replaced with HCPCS G0568, G0569, and G0570. Add-on G2214 remains in place. If your chargemaster still holds the CPT numbers, every 2026 CoCM claim you submit under them will deny.

The codes above are the mechanics. Mechanics are not the problem physician groups call us about.

The payer reality: why coding correctly is not enough

Behavioral health claims deny at rates physical health claims do not, and the causes are structural, not clerical. Three payer behaviors drive the gap: behavioral health carve-outs that route claims away from the medical plan, mental health parity violations that persist despite federal law, and state Medicaid plans that pay CoCM codes in theory but reject them in practice.

Behavioral health carve-outs

A carve-out is a contracting arrangement where the commercial plan delegates behavioral health to a separate benefit manager, typically Optum Behavioral Health, Magellan, Carelon Behavioral Health, or Beacon Health Options. The carve-out has its own fee schedule, its own credentialing, its own authorization rules, and its own claims address. When a physician group submits a BHI or psychotherapy claim to the medical plan, the plan often routes it to the carve-out without notice, and the carve-out denies it because the physician group is not in its network.

The workaround Dr. Peter Liepmann described in the KFF Health News piece is not hypothetical. Quoting the article directly:

"If he saw a patient with depression, he coded it as fatigue. Anxiety was coded as palpitations. That was the only way to get paid."

• Dr. Peter Liepmann, family physician, as reported by KFF Health News

A physician group does not need to resort to this tactic. It does need to know which of its top commercial contracts carve behavioral health out, and to which vendor, before it starts billing 99484.

Commercial, Medicare, and Medicaid variance

Medicare pays the full BHI and CoCM code set nationally under the Physician Fee Schedule. Commercial and Medicaid coverage is more fragmented. According to the California Health Care Foundation's 2020 "Cracking the Codes" report, CoCM only becomes economically viable for a practice when all payers reimburse the codes, and at publication only 17 state Medicaid agencies did. The number has grown since. It is still not all 50. The American Psychiatric Association's reimbursement guidance for Medicaid CoCM states that "insurance coverage for services differs between insurance providers, individual plans, and state Medicaid agencies," and recommends that states avoid prior authorization because it creates an unnecessary barrier to care. Groups in states without Medicaid CoCM coverage lose the 40 to 60 percent of a pediatric or safety-net panel that Medicaid typically represents.

Parity law exists. Enforcement does not match it.

The Mental Health Parity and Addiction Equity Act requires commercial plans to cover behavioral health on par with medical and surgical services. The Kennedy Forum's 2026 Mental Health Parity Index, built in collaboration with the AMA, found that 43 states show disparities in access to in-network mental health and substance use care, and that 7 in 10 US counties have coverage disparities relative to physical healthcare. Parity is a legal ceiling. Parity enforcement is a floor below it. Your denials live in the gap.

Knowing the codes and the payer rules is still not enough to run a program. Physician groups also need to know what each code pays.

What each behavioral health code actually pays

Reimbursement for behavioral health codes varies by payer, product, state, and place of service, with Medicare setting the anchor and commercial plans ranging from 75 to 140 percent of the Medicare rate depending on contract. The public rate most physician groups reference, the CMS Physician Fee Schedule, is a starting point, not the number the practice collects.

The Medicare national average for high-frequency codes in 2026 sits in the following ranges. 99484 general BHI pays around $52 per patient per month. G0568, the new CoCM initial month code, pays around $175 per patient for the first 60 minutes. G0569, the subsequent month code, pays around $130. 90791 psychiatric diagnostic evaluation pays around $195. 90837 60-minute psychotherapy pays around $160. The 90833 psychotherapy add-on to an E/M pays around $72.

Commercial allowed amounts for the same codes vary widely. Large national carriers pay at or slightly below the Medicare rate for BHI and CoCM codes because those codes originated in Medicare and most commercial fee schedules anchor to the PFS. State Medicaid rates range from roughly 60 percent of Medicare (Texas, Florida) to parity or above (Oregon, Massachusetts). Carve-out vendor fee schedules are rarely published and frequently sit 10 to 25 percent below the underlying commercial medical fee schedule for the same code.

A practice that wants to model CoCM revenue needs its own contract rates, not the Medicare anchor. That is what makes the business case credible.

Does the CoCM business case actually work?

CoCM pencils out for physician groups that hit two thresholds: an average monthly billable caseload above 40 patients per behavioral health care manager, and a payer mix in which at least 70 percent of enrolled patients have plans that actually reimburse the CoCM codes. Below either threshold the program loses money. The threshold math is why most CoCM programs succeed or fail before the first claim is submitted.

Staffing the three-person team

CoCM requires three roles: the primary care physician or pediatrician billing the code, a behavioral health care manager tracking the caseload, and a psychiatric consultant reviewing cases weekly. The care manager can be an LCSW, LPC, LMFT, or RN with behavioral health experience. The psychiatric consultant can be part-time or contracted.

The 2019 AAFP Family Practice Management case study by Dr. Leisa Bailey is the clearest published breakdown. Bailey's rural Florida practice contracted a semi-retired psychiatric nurse practitioner and a master's-level counselor on a per-patient basis rather than hiring them as employees. Her note on the decision:

"We could not support a full-time counselor, and we did not want to risk fixed overhead on a new program."

• Dr. Leisa Bailey, Bailey Family Practice

Break-even caseload under 2026 rates

Bailey's 2019 math showed a 20-patient caseload generating $2,588 per month in Medicare revenue against $1,200 in contractor costs, for a net of $1,388 per month. Rebuild that model with the 2026 G-code rates and a mixed payer panel where Medicare represents 40 percent, commercial 40 percent, and Medicaid 20 percent, and the break-even caseload for a practice paying a care manager $80,000 annually sits between 42 and 48 active patients per month. Below 40, the care manager costs more than the program generates. Above 60, the program generates meaningful practice margin.

Pediatric CoCM: structurally harder

Pediatric CoCM faces a worse math problem than adult primary care. The UW AIMS Center Pediatric Collaborative Care Implementation Guide documents that pediatric caseloads run smaller than adult caseloads, the codes pay the same dollar amount in either setting, and Medicaid represents a larger share of pediatric revenue than adult revenue. Patel, Apple, and Campbell in Pediatric Clinics of North America stated the problem directly: "The BHC salary is usually not justified based on their individual reimbursements." A pediatric group making CoCM work typically does it by contracting the care-manager role across multiple practices or by folding it into a grant-funded integrated care initiative.

A program that survives the business case still has to survive the claim. That is where the documentation and denial-prevention workflow comes in.

Documentation and denial prevention for behavioral health claims

Three documentation habits protect behavioral health claims from the most common denial reasons: explicit time tracking for every time-based code, a verified initiating E/M visit that precedes any BHI or CoCM month of service, and a payer-specific appeal path pre-mapped for the top five commercial contracts. Build the habits into the EHR workflow rather than training them into billers one denial at a time.

Explicit time tracking

Time-based codes require the exact minute count in the note. For psychotherapy codes, document start and stop times, not just "45 minutes." For 99484, log cumulative minutes per calendar month in a single care-management note, not scattered encounter notes. For G0568 and G0569, log each discrete care-management activity with the minutes attributed. Auditors reject totals that do not reconcile to time entries.

Initiating visit and consent

Every BHI and CoCM billing cycle requires an initiating E/M visit that documents patient consent to the program and establishes the behavioral health diagnosis. Missing or back-dated consent is the single most common audit finding in BHI audits because the initiating visit often happens months before the first 99484 month-close and practices forget to document consent at that visit.

Appeals when the claim is bounced to a carve-out

Do this if a commercial plan denies a BHI or CoCM claim with a carve-out routing code. Pull the patient's EOB and identify the carve-out vendor. Verify whether the practice has a contract with that vendor. If yes, resubmit to the carve-out. If no, file a medical necessity appeal with the commercial plan citing the MHPAEA parity requirement that behavioral health services be covered on par with medical ones. Track the outcome by payer and code. Over 90 days of remittance data, the practices that improve their behavioral health collections are the ones that aggregate denials by carve-out vendor and renegotiate inclusion in the next contract cycle.

The codes are the easy part. Getting paid for them is the work.

The first step before you bill a single BHI or CoCM code

A physician group that wants integrated behavioral health to pay its own way starts with three questions, in order. Which of your top 10 commercial contracts carve behavioral health out, and to which vendor? What does each of those contracts actually pay for 99484, G0568, and G0569 versus the Medicare anchor? At what caseload does the program break even given your real payer mix, not the Medicare-only assumption?

Answer those three questions before the first claim leaves the practice. The physician groups that treat behavioral health coding, contracting, and carve-out navigation as one connected problem are the ones that sustain integrated care. The ones that treat coding as the whole problem get the $87 check.