CPT® Code 99366

Quick Reference: CPT 99366

• CPT 99366 Definition: A medical team conference with an interdisciplinary team of health care professionals, face-to-face with the patient and/or family for ≥30 minutes, with participation by a non-physician qualified health care professional (QHP) [1]. It is time-based and requires direct contact.
• When to Use: Report 99366 for a formal care conference focused on a specific patient’s plan of care when at least three different disciplines actively participate, each clinician has been recently involved in the patient’s care, and the patient and/or family is present for all or part of the conference [2]. Many physicians do not bill 99366 when the patient/family is present because their participation is typically captured through E/M services rather than the team conference code structure [2].
• Minimum Documentation: Document date, start/stop times (or total duration), participants with credentials and disciplines (showing at least three distinct disciplines), each participant’s role/contribution, a summary of the discussion and decisions, and the resulting care plan/action items. Each reporting provider must sign and date their participation attestation. State Medicaid programs that pay the service often publish detailed documentation expectations [5].
• Required Participants: Patient and/or family presence is required for 99366, and an interdisciplinary team (generally at least three different specialties/disciplines) must participate [2]. Most payer guidance mirrors the “no duplicate specialty billing” expectation: more than one provider of the same specialty billing for the same meeting is typically not allowed in payable programs [2].
• Coverage Reality: Medicare treats 99366 as always bundled (Status B) and does not reimburse it separately [3]. Many commercial payers similarly deny it unless a contract or program specifically covers interdisciplinary case conferencing [1].
• Time & Frequency Rules: 99366 represents each conference lasting ≥30 minutes; time under 30 minutes is not billable under this code family [2]. Many payer programs permit only one unit per day per patient per provider, and some restrict the number of conferences per year [5].
• Denial Triggers: Frequent issues include missing start/stop times, missing required disciplines, conference under 30 minutes, patient/family not present, or billing in settings where the conference is considered routine facility care. Medicare-specific workflows often use a non-coverage modifier (commonly GY) to obtain a clean denial for secondary billing, consistent with “bundled/always bundled” status logic [3].

CPT 99366 sits in the case management / care coordination area of E/M coding and is intended to capture a specific kind of clinical work: a structured, interdisciplinary care conference held with the patient and/or family present. In a compliant 99366 encounter, multiple professionals from distinct disciplines contribute to a shared, patient-specific plan—often for complex conditions requiring coordinated therapy, psychosocial support, community services, and ongoing medical decision-making.

99366 is less about “is the meeting clinically valuable?” and more about “do the code requirements and payer rules allow separate payment?” Medicare generally does not pay it (bundled status), and many commercial payers follow the same approach. Where 99366 can matter is in Medicaid programs, specialty care coordination models, or behavioral health integration arrangements that explicitly reimburse team-based planning time. That combination—strict CPT elements plus selective payer coverage—means that documentation precision and payer verification are the two levers that decide whether billing is feasible.

Official Definition of CPT 99366

CPT 99366 is defined as a medical team conference with an interdisciplinary team of health care professionals, face-to-face with patient and/or family, 30 minutes or more, with participation by a nonphysician qualified health care professional [1]. In practical terms, 99366 represents a coordinated meeting—planned, patient-specific, and collaborative—where the patient and/or family is present for all or part of the discussion and may contribute information, preferences, and questions.

Core billing elements (what must be true)

Although payer program rules can vary, the baseline CPT concept has stable “gates” that must be met for the service to be reportable:

• Interdisciplinary team: The conference must include a team with multiple disciplines, commonly understood as at least three distinct specialties or disciplines, and each participant must meaningfully contribute to the care plan discussion [2].
• Patient/family present: The patient and/or family/caregiver is present for all or part of the conference. If there is no patient/family presence at all, 99366 is not the correct code (the “patient not present” codes are different, and coverage is still variable) [2].
• Time threshold: Total conference time must be ≥30 minutes. If the meeting lasts 29 minutes, the code is not reportable. Time is a hard threshold, not an average or “rounded” value [2].
• Qualified professional participation: The reporting professional is a non-physician QHP in the CPT framing of the code descriptor [1]. Many organizations interpret this as a nonphysician practitioner or licensed clinician whose scope includes care coordination and who is allowed by the payer to bill professional services.

Why physicians often do not bill 99366 for patient-present conferences

Professional societies describing team conference criteria emphasize that the code family is structured so that patient-present interdisciplinary discussion time for physicians is often captured through E/M frameworks rather than team conference codes [2]. This is one reason 99366 appears more commonly in programs that rely on nonphysician leadership (care management RNs, therapists, behavioral health clinicians, or social work-led coordination) rather than physician-led visits.

In operational terms, if a physician’s work is already billed as an office/outpatient or facility E/M service on the same day, practices should be careful not to double count time that overlaps with the conference. When a payer does cover 99366, it is typically because the payer is explicitly paying for structured interdisciplinary planning time and has rules to avoid duplicate billing and same-specialty stacking.

Documentation Requirements for 99366

Because 99366 is time-based and depends on the presence and contributions of multiple disciplines, it is documentation-heavy. If you want a 99366 record to survive a payer audit, the note should allow a reviewer to answer five questions quickly:

• Did the conference last at least 30 minutes?
• Was the patient/family present, and for what portion?
• Were at least three distinct disciplines present and contributing?
• Was the conference clinically necessary (not routine rounding or administrative)?
• What decisions or care plan changes resulted?

Minimum required elements

• Date, timing, and duration: Document the conference date and start/stop times (preferred) or a clear total duration statement. Many payer programs explicitly require start/stop times for time-based conference codes [5].
• Participants and disciplines: List each participant’s name, credential, and discipline/specialty. The record should make the “three distinct disciplines” requirement obvious without inference [2].
• Patient/family attendance: Document who was present (patient, parent, guardian, caregiver, interpreter) and whether presence was full or partial. If partial, note which segment involved direct patient/family interaction and what was conveyed.
• Clinical content: Summarize the condition status, barriers, risk considerations, competing priorities, and the care plan items discussed. The content must reflect patient-specific care management, not generic education or administrative coordination.
• Team contributions and decision-making: Document what each discipline contributed (assessment updates, therapy progress, medication issues, psychosocial needs, school/community services, discharge plans). If the record reads like a single-person note, it often fails “interdisciplinary” scrutiny.
• Outcome and action items: Record decisions, referrals, orders, follow-up timing, monitoring plans, and responsibilities (who will do what by when). Action items are a strong indicator that the conference affected care.
• Signature/attestation: Each reporting provider should sign and date their participation attestation. In payable programs, some policies require the billing provider to attest they were present for the full conference duration and actively participated [5].

Documentation structure that reduces denials

Many denials stem from notes that mention a “team meeting” without anchoring the requirements. A practical approach is to standardize a template that includes: (1) start/stop time line, (2) attendee roster by discipline, (3) patient/family attendance line, (4) “discipline updates” subsection, (5) “decisions and plan” subsection, and (6) provider attestations.

For programs like autism services or other specialized Medicaid-covered coordination models, documentation requirements may be unusually specific. Texas Children’s Health Plan’s autism guideline, for example, outlines conference note elements that closely mirror the checklist above, including duration details and a documented summary of what was communicated to the family and what decisions were made [5]. Even if you are not billing in Texas, using a “high-standard” template like that improves defensibility.

Common audit failure pattern: A note that lists only two attendees, omits the patient/family presence statement, or shows “30 minutes” without start/stop times frequently fails. When payer payment is available, auditors often treat missing time anchors and missing interdisciplinary detail as insufficient support for a time-based service.

Medicare and Payer Rules for 99366

Medicare: Bundled (Status B) and not separately payable

Medicare policy treats CPT 99366 (and related team conference codes) as always bundled under the Physician Fee Schedule. Reimbursement policies that track CMS bundling logic list 99366–99368 as bundled services with no separate payment [3]. Practically, that means Medicare generally will not issue separate payment for 99366, even if the meeting meets CPT criteria.

Operational consequence: some organizations submit 99366 to Medicare only to obtain a denial for secondary insurance coordination or for internal utilization tracking. When doing so, a non-coverage modifier is commonly used to encourage a clean denial workflow consistent with bundled/non-covered handling [3].

Commercial payers: often non-covered unless the contract/program says otherwise

Commercial payer behavior varies by contract, but many plans treat team conference codes as non-covered or incidental to other paid services. Florida Blue’s non-covered services guideline is frequently cited as an example where team conference codes are described and treated as non-covered within that payer’s policy structure [1]. Even when a payer does not expressly list 99366 as “non-covered,” it may still be denied as bundled into care management, facility services, or other visit payments.

Because coverage is inconsistent, the most reliable operational rule is: verify coverage before billing. If a payer covers the service only within an explicit care coordination program (behavioral health integration, pediatric complex care, autism services, etc.), the billing must follow that program’s eligibility and documentation rules—otherwise the denial rate is high and appeals become documentation-intensive.

Where 99366 is more likely to be payable

In practice, 99366 is most likely to be payable in Medicaid programs or managed care models that explicitly recognize interdisciplinary care planning as a reimbursable activity. Examples include:

• California Medi-Cal: Provider manual guidance indicates coverage of team conference codes for specified provider types and establishes frequency logic (often once per day per provider per patient, with program constraints) [4].
• Texas autism-specific guidelines: Certain plans/programs allow limited reimbursement for interdisciplinary ASD care conferences, usually with prior authorization and strict documentation requirements [5].
• State exceptions documented in payer “B-bundle” policies: Some Medicaid managed care reimbursement policies list state-specific exceptions that allow payment in certain jurisdictions and settings [6].

A key implication is that “CPT-eligible” does not equal “payer-payable.” A conference can be perfectly compliant with CPT requirements and still be denied if the payer bundles it or excludes it. That is why coverage verification and program eligibility checks must be part of the workflow.

Applicable Modifiers for Team Conference Billing

99366 is a standalone service code, but modifiers matter for two reasons: (1) to separate it from other same-day services when a payer edit would bundle incorrectly, and (2) to obtain a clean denial when a payer (especially Medicare) does not cover it.

Modifier 25 (separately identifiable E/M)

If a separately identifiable E/M service is provided on the same day by the same clinician (or in the same practice context, depending on payer rules) and the E/M service is distinct from the conference, modifier -25 may be appended to the E/M code. This is not a “routine” 99366 scenario, but it can occur when a patient has an independent visit plus a separate scheduled care conference. If used, the record must show distinct documentation and distinct time/effort for the E/M service.

Modifier 95 (telehealth, synchronous audio-video)

When the care conference occurs via real-time audio-video telehealth and the payer allows 99366 via telehealth, modifier -95 (or a payer-specified telehealth modifier) may be required. Telehealth permissibility is payer-specific; Medicare bundling status is a separate issue from telehealth permissibility. For payable programs, telehealth documentation should also note platform type, participant locations (where required), and that the patient/family participated synchronously.

Modifier 59 (distinct procedural service)

Modifier -59 is not commonly used with 99366, but may be encountered if a payer’s claims edits inappropriately bundle the conference into another service in a setting where the payer actually covers it. Modifier use must be consistent with payer guidance and should never be a substitute for meeting the base code requirements.

Modifier GY (statutorily excluded / non-covered)

Because Medicare bundles 99366, a non-coverage modifier is commonly used when submitting to Medicare to obtain a predictable denial workflow. In payer guidance that tracks CMS “always bundled” status logic, the goal of this modifier strategy is to prevent confusing adjudication outcomes and allow secondary billing when applicable [3]. If you use a non-coverage modifier, ensure your compliance process aligns with your organization’s ABN/financial policy workflows.

Comparison to 99367, 99368 and Other Care Coordination Codes

CPT 99366 is part of a small family of team conference codes. The main selection logic is: (1) whether the patient/family is present, and (2) whether the reporting clinician is a physician/clinician who typically reports E/M versus a nonphysician QHP.

Team conference codes differ from other care coordination codes in two key ways: they are event-based (one discrete meeting) and they require an interdisciplinary, real-time conference. In contrast, monthly care management codes accumulate time across a month, and interprofessional consultation codes typically describe provider-to-provider consultative discussion rather than a multi-person team meeting. Professional coding guidance for case management emphasizes that team conference reporting is distinct from routine coordination activities and requires meeting the specific criteria [2].

Another critical principle is time exclusivity: time counted toward a team conference should not be double-counted toward other time-based services. The safest operational approach is to treat the conference as a discrete block of time with its own start/stop anchors and to keep other services’ time calculations separate.

Clinical Use Cases and Non-Billable Scenarios

The scenarios below show how to translate the CPT criteria into operational decision rules, including when the service is clinically appropriate but not separately billable due to coverage or setting.

Use Case 1: Pediatric complex care conference (patient/family present)

Patient: Child with complex neurological and feeding needs enrolled in a coordinated care program.

Conference: 45-minute scheduled meeting with parent present. Participants include PT, dietitian, and nurse care manager; each provides updates and recommendations; plan includes therapy adjustments and a referral workflow.

Billing: 99366 is CPT-appropriate if the payer covers team conferences, because time threshold, disciplines, and patient/family presence are met [2]. Documentation should list start/stop times and each discipline’s contribution.

Use Case 2: ASD interdisciplinary meeting under a covered Medicaid program

Patient: Child with Autism Spectrum Disorder in a program that explicitly covers interdisciplinary team conferences.

Conference: 30+ minutes with parent present; includes behavior analyst and other required disciplines; meets program requirements and authorization rules.

Billing: In covered programs, follow the program guideline documentation elements closely (time, participants, family communication summary, action items) [5]. This is the kind of scenario where 99366 is most likely to be paid.

Non-billable 1: Only two disciplines present

Conference: 35-minute discussion between a nurse and a physician with the patient present, but no third discipline participates.

Outcome: Not billable as 99366 because the interdisciplinary threshold is not met; the work is typically considered part of other management/E/M services [2].

Non-billable 2: Routine facility rounds or expected interdisciplinary meetings

Conference: Standard inpatient rehab weekly team rounds where interdisciplinary review is routine and embedded in the facility’s care model.

Outcome: Even if the meeting resembles a team conference, separate 99366 reporting is commonly denied because the activity is considered part of routine facility services or bundled payment logic. This aligns with why Medicare and many payers treat the code family as bundled [3].

Non-billable 3: Under 30 minutes

Conference: 20-minute interdisciplinary check-in with patient/family present.

Outcome: Not billable under 99366 because the ≥30-minute threshold is not met [2]. There is no “short conference” equivalent in this code family.

Non-billable 4: Administrative or educational meeting

Conference: Team meeting focused on staffing, scheduling, or general education rather than a patient-specific plan.

Outcome: Not billable. 99366 requires patient-specific care planning and interdisciplinary clinical decision-making.

Across all scenarios, the most common preventable denial is “insufficient documentation.” When a payer covers the service, the documentation should read like a structured clinical care planning encounter—because that is what 99366 is intended to represent.

State Medicaid Variations (CA, TX, NY, FL, etc.)

State Medicaid programs differ substantially in whether and how they recognize team conference codes. In some states, interdisciplinary conferencing is reimbursed through state-specific case management codes rather than CPT 99366; in others, 99366 is recognized only for certain provider types or program categories (behavioral health, autism services, pediatric complex care). The sources below highlight several notable examples and payer policy frameworks.

California (Medi-Cal)

California’s Medi-Cal provider manual includes guidance that permits certain provider types to bill team conference codes and defines constraints such as participant relevance (must be directly involved in care) and frequency limits [4]. For California billing, providers should follow Medi-Cal’s specific manual instructions (including any required modifiers or provider enrollment requirements) because Medi-Cal claims edits often enforce program-specific formatting.

Texas (program-specific coverage such as autism services)

Texas coverage is frequently program-specific rather than broadly fee schedule-based. For example, the Texas Children’s Health Plan autism guideline describes limited, criteria-driven coverage for interdisciplinary meetings and emphasizes authorization and documentation elements that must appear in the record (including time, participants, and what was communicated to the family) [5]. Outside those defined programs, 99366 may remain effectively non-covered, so payer and program verification is essential.

New York and other states using alternative mechanisms

In several states, including New York in many contexts, care coordination is often reimbursed through state-specific case management models (health homes, capitation arrangements, or program codes) rather than team conference CPT codes. In these environments, the clinical activity may be expected but not separately billable under 99366 unless a plan specifically authorizes it.

Florida (often non-covered)

Florida Medicaid and major commercial payer approaches often mirror the broader bundling trend. Florida Blue’s non-covered services guideline is commonly referenced in reimbursement discussions as indicating non-coverage for team conference codes within that payer’s policy logic [1].

Medicaid managed care plan exceptions (CO, MA, WA, etc.)

Some Medicaid managed care reimbursement policies publish lists of “B-bundle” codes and identify state exceptions where payment may be allowed. UnitedHealthcare Community Plan’s bundled-codes policy, for example, describes state-level exceptions for codes including 99366–99368 in certain jurisdictions [6]. When a plan documents an exception, billing success still depends on meeting the plan’s provider-type rules and documentation requirements.

Practical rule: Do not assume that a CPT-valid 99366 conference is payable. Verify payer coverage, confirm provider-type eligibility, and align documentation to the payer/program checklist. Where payers follow CMS bundling logic, denial is expected and should be handled through non-coverage workflows [3].

Sources

1. Florida Blue (BCBS FL) Medical Coverage Guideline – Non-Covered Services. Policy excerpt that includes the CPT 99366 descriptor and indicates non-coverage under that payer’s guideline. View source
2. American Speech-Language-Hearing Association (ASHA) – CPT Coding for Case Management. Practical criteria and guidance for team conference reporting, including interdisciplinary participation and general coding considerations. View source
3. EmblemHealth 2026 Reimbursement Policy: Bundled Services. Reimbursement policy listing codes that are always bundled per CMS logic, including CPT 99366–99368. View source
4. California Medi-Cal Provider Manual (Oct 2025) – Case Management/Evaluation. State Medicaid manual describing coverage conditions and allowable provider types for team conference codes. View source
5. Texas Children’s Health Plan – Autism Services Guideline (2025). Program guidance describing when CPT 99366 may be used for ASD team meetings and what documentation elements are required. View source
6. UnitedHealthcare Community Plan Reimbursement Policy 2026 – “B” Bundle Codes. Medicaid managed care reimbursement policy describing bundled codes and state-specific exceptions relevant to CPT 99366–99368. View source
7. MDedge – “Coding Updates for 2025” (Feb 2025). Overview discussion of medical team conference codes 99366–99368 and their intended use cases in practice management and coding updates. View source